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Audit Complete

Results for https://koreaherald.com

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Spain Spain · Madrid Completed: Apr 15, 2026 23:20 UTC
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Mobile 375 × 812

Screenshot of the audited page (Mobile 375×812)

Desktop 1440 × 900

Screenshot of the audited page (Desktop 1440×900)
D67

Site Health

Score: 67 / 100

Based on 8 categories, 0 sections

Room to improve — your 10.8s load time is above Google's 2.5s 'Good' threshold.

Several missing protections leave your users and data exposed.

Several issues make your site difficult for assistive technology users.

Well-optimized for search — your content is discoverable.

Good server performance with room for optimization.

Several regulatory requirements are not yet met.

Rich content metadata — your pages look great everywhere.

Heavier than average — reducing page weight saves energy and bandwidth.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

core-js sites average 72
At average
Better than 2% of core-js sites See full core-js benchmark →
Google Search Console sites average 73
-6 below average
Better than 1% of Google Search Console sites See full Google Search Console benchmark →

Top Priorities (5)

1

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers
2

Cookie 'NCPVPCLBTG' is missing the Secure flag

Security gaps expose your site and users to attacks, eroding trust.

Security › Cookie Security
3

HSTS header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers
4

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy
5

Page weighs 23.7 MB (21.3 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget
View fix priority matrix

Fix Priority Matrix

5 findings

Quick Wins

4

High impact, low effort — start here.

Strategic

1

High impact, requires investment.

Easy Improvements

0

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

0

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →
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What fixing these means

Your site has several issues that may be affecting user experience and business outcomes. Your LCP of 10.8s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. The 4 security gaps leave your users exposed — modern browsers increasingly warn visitors about insecure sites. Addressing the critical issues below would have the most immediate impact on your user trust.

4 security gaps detected — browsers may warn visitors about your site.
Your LCP is 10.8s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.
C
Could reach Estimate based on resolving critical issues

Conversion Barriers

1 critical 10 warning

11 barrier(s) likely increasing bounce by ~30%.

Speed (2)

Page takes 10.8s to load

+12% bounce

Users abandon at ~3s — you're 8.3s over the 2.5s threshold

Fix: Optimize render-blocking resources, preload the hero image, and compress images

High main-thread blocking time

+2% bounce

Page is non-interactive for 342ms after first paint

Fix: Defer third-party scripts and split large bundles

Trust (2)

No HSTS header

+1% bounce

Returning visitors are briefly exposed to downgrade attacks on first request

Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Usability (2)

1 form field(s) without a label

+2% bounce

Screen readers skip unlabeled fields; autofill can't identify them; checkout abandonment spikes

Fix: Associate every input with a visible <label for="…">; add autocomplete attributes

Viewport disables user zoom

+2% bounce

Visitors with low vision can't read the page — and some jurisdictions treat this as a legal risk

Fix: Remove user-scalable=no; drop maximum-scale if it's below 2

Content (2)

No structured data

+2% bounce

No rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices

Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)

Content is hard to read

+2% bounce

Graduate-level reading difficulty — limits the addressable audience for product or blog pages

Fix: Shorten sentences; replace jargon with plain language; target Flesch ease ≥60

Navigation (3)

25 link(s) with generic text ("click here", "read more")

+1% bounce

Screen-reader users navigating by link list see no context — and search engines can't infer relevance

Fix: Rewrite with descriptive phrases that identify the destination

No skip-to-content link

+1% bounce

Keyboard and screen-reader users must tab through the entire header on every page

Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element

1 broken link(s) on the page

+2% bounce

Clicks land on 404s — trust drops and the session often ends

Fix: Fix or remove the broken destinations surfaced on the Content tab

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

SGD 360 investment → SGD 5,940/month returns + SGD 1,000,000 risk avoided

Payback period: < 1 month First-year ROI: +19699%

Investment

SGD 360

4h · 5 findings

Monthly returns

SGD 5,940 /mo

~SGD 71,278 / year

  • Conversions recovered SGD 5,933
  • Bandwidth savings SGD 7.26

Regulatory risk avoided

SGD 1,000,000

if kept compliant

  • PDPA SGD 1,000,000

Payback period

0 12mo 24mo

SGD 180 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

S$360

4.0 developer hours at S$90/hr

Based on Singapore rates (S$90/hr)

Quick wins
S$180 4 fixes in ~120 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions
S$ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

SGD 83,341 / month at risk

~SGD 1,000,087 / year if left unfixed

Compliance Risk

SGD 1,000,000

PDPA
  • No privacy policy link detected
    PDPA: SGD 10,000 – SGD 1,000,000
  • Trackers detected but no cookie policy found
    PDPA: SGD 10,000 – SGD 1,000,000
  • Trackers detected but no privacy policy found
    PDPA: SGD 10,000 – SGD 1,000,000

+1 more

Bandwidth Waste

SGD 7.26 /mo

67123.9 MB/mo × 0.108 SGD/GB

  • Optimize transfer: save ~6.7 MB per page load
    Saves SGD 7.26/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Unique monthly visitors from your analytics

Purchases, signups, or key actions

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue
Current bounce (est.)
After fixes (est.)
Estimated bounce reduction

Fix 5 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

47
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
64
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
85
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

9.99 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

10.85 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

342 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

14.32 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

21.84 s

Detailed Report

Audit breakdown by category with detailed findings.

47

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
/svc/desking/1003/LifenCulture/202604/A10717658_234_20260...0.0 ms2.0 MiB
/news/cms/2026/04/15/news-p.v1.20260415.a94609f028f448eea...0.0 ms1.5 MiB
/svc/desking/1003/index/202604/X20250829165731_226_202604...0.0 ms1.3 MiB
/news/cms/2026/04/14/news-p.v1.20260414.a79f341968d3408cb...0.0 ms1.3 MiB
/news/cms/2026/04/15/rcv.YNA.20260415.PYH2026041507940001...0.0 ms1.1 MiB
/news/cms/2026/04/15/news-p.v1.20260415.a8bc6d937bf24b03b...0.0 ms973.8 KiB
/news/cms/2026/04/15/rcv.YNA.20260415.PYH2026041509070001...0.0 ms942.1 KiB
/news/cms/2026/04/14/rcv.YNA.20260414.PYH2026041406080005...0.0 ms907.4 KiB
/news/cms/2026/04/15/rcv.YNA.20260322.PYH2026032203500001...0.0 ms886.8 KiB
wimg.heraldcorp.com/svc/desking/1003/series/202601/null_248_20260114162616.png0.0 ms848.2 KiB
/news/cms/2026/04/15/news-p.v1.20260415.e7309fb70c024e558...0.0 ms790.5 KiB
/news/cms/2026/04/15/news-p.v1.20260415.ac740ef38c3f44108...0.0 ms750.0 KiB
/news/cms/2026/04/15/news-p.v1.20260415.ba48d7e9060c4f23a...0.0 ms648.9 KiB
/news/cms/2026/04/15/news-p.v1.20260415.cd41881b69324a588...0.0 ms506.7 KiB
/news/cms/2026/04/15/news-p.v1.20260415.ec8c55107e4f48579...0.0 ms495.1 KiB
/news/cms/2026/04/15/rcv.YNA.20260414.PAF2026041415700100...0.0 ms486.3 KiB
/news/cms/2026/04/15/news-p.v1.20260415.4dfd435e1f5d4bdf8...0.0 ms475.1 KiB
static.heraldcorp.com/wbazic/kh/mobile/image/kh_event_bnn_1600x900_260330.jpg10800.0 s611.5 KiB
/news/cms/2026/04/15/news-p.v1.20260415.cdee5da7c837489fb...0.0 ms393.5 KiB
/news/cms/2026/04/15/news-p.v1.20260415.ec6b5e90d600402aa...0.0 ms319.7 KiB
/news/cms/2026/04/13/news-p.v1.20260413.f89604c15d7e4fd9b...0.0 ms310.9 KiB
/news/cms/2026/04/14/news-p.v1.20260414.77451bf6eb434edeb...0.0 ms297.9 KiB
/svc/desking/1003/series/202507/X20250708141128_248_20250...0.0 ms246.5 KiB
/svc/desking/1003/index/202604/X20250829165707_226_202604...0.0 ms193.4 KiB
/svc/desking/1003/index/202604/X20250905100912_226_202604...0.0 ms175.4 KiB
/news/cms/2026/04/15/news-a.v1.20260415.fc4d257c631d4d7a8...0.0 ms141.4 KiB
static.heraldcorp.com/js/climateclock_v2.js10800.0 s147.8 KiB
wimg.heraldcorp.com/svc/banner/202501/86455cbc-51ea-4bea-aa49-192b37ad2061.png0.0 ms84.8 KiB
wimg.heraldcorp.com/svc/banner/202509/59408691-e7a2-4df0-84fa-eb82c8ba0323.png0.0 ms79.8 KiB
/svc/desking/1003/series/202412/X20241210102601_248_20241...0.0 ms59.3 KiB
/svc/desking/1003/series/202412/X20241203141550_248_20241...0.0 ms56.3 KiB
wimg.heraldcorp.com/svc/banner/202412/2c01302f-080f-4c53-8e6e-1d9f360c9f08.jpg0.0 ms44.3 KiB
wimg.heraldcorp.com/svc/banner/202501/fa744dda-c6e5-45e6-ac08-262656eea23e.png0.0 ms30.5 KiB
static.heraldcorp.com/wbazic/kh/mobile/js/swiper-bundle.min.js10800.0 s43.6 KiB
t1.kakaocdn.net/kakao_js_sdk/v1/kakao.min.js2455.0 s34.5 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
ssl.pstatic.net/melona/libs/gfp-nac-module/synchronizer.js1967.0 s18.2 KiB
static.heraldcorp.com/wbazic/kh/mobile/css/common.css?v=20260330143610800.0 s19.5 KiB
ssl.google-analytics.com/ga.js7200.0 s17.4 KiB
wcs.naver.net/wcslog.js219.0 s10.5 KiB
static.heraldcorp.com/js/lib/utils.js?v=20260330143610800.0 s11.6 KiB
static.heraldcorp.com/wbazic/kh/mobile/css/swiper-bundle.min.css10800.0 s5.3 KiB
static.heraldcorp.com/js/lib/utils.kh.hrd.js?v=20260330143610800.0 s4.7 KiB
static.heraldcorp.com/wbazic/kh/mobile/css/reset.css?v=20260330143610800.0 s3.5 KiB
static.heraldcorp.com/js/lib/sscad.js10800.0 s2.4 KiB
static.heraldcorp.com/js/lib/more.js10800.0 s2.3 KiB
static.heraldcorp.com/js/lib/ajax.js10800.0 s2.3 KiB
static.heraldcorp.com/js/lib/lazyimg.js10800.0 s2.2 KiB
open.spotify.com/embed/iframe-api/v10.0 ms1.3 KiB
static.heraldcorp.com/wbazic/kh/mobile/css/climate.css10800.0 s1.5 KiB

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:24.704 source:map[column:4665 line:12 type:source-location url:https://static.heraldcorp.com/wbazic/kh/mobile/js/swiper-bundle.min.js urlProvider:network]] map[reflowTime:59.684 source:map[column:10379 line:12 type:source-location url:https://static.heraldcorp.com/wbazic/kh/mobile/js/swiper-bundle.min.js urlProvider:network]] map[reflowTime:0.513 source:map[column:16069 line:12 type:source-location url:https://static.heraldcorp.com/wbazic/kh/mobile/js/swiper-bundle.min.js urlProvider:network]] map[reflowTime:0.324 source:map[column:10859 line:12 type:source-location url:https://static.heraldcorp.com/wbazic/kh/mobile/js/swiper-bundle.min.js urlProvider:network]] map[reflowTime:0.05 source:map[column:16347 line:12 type:source-location url:https://static.heraldcorp.com/wbazic/kh/mobile/js/swiper-bundle.min.js urlProvider:network]] map[reflowTime:57.208 source:map[type:text value:[unattributed]]]]

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:3510.664 label:Time to first byte subpart:timeToFirstByte] map[duration:549.429 label:Resource load delay subpart:resourceLoadDelay] map[duration:2809.893 label:Resource load duration subpart:resourceLoadDuration] map[duration:94.296 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-DIV
nodeLabel: body.body_column_4 > section.main > div.main_img_bg
path: 1,HTML,1,BODY,6,SECTION,0,DIV
selector: body.body_column_4 > section.main > div.main_img_bg
snippet: <div class="main_img_bg" style="background: url(&quot;https://wimg.heraldcorp.com/news/cms/2026/04/15/news-p.v1.…&quot;);">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-DIV
nodeLabel: body.body_column_4 > section.main > div.main_img_bg
path: 1,HTML,1,BODY,6,SECTION,0,DIV
selector: body.body_column_4 > section.main > div.main_img_bg
snippet: <div class="main_img_bg" style="background: url(&quot;https://wimg.heraldcorp.com/news/cms/2026/04/15/news-p.v1.…&quot;);">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/svc/desking/1003/LifenCulture/202604/A10717658_234_20260...2.0 MiB2.0 MiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.a94609f028f448eea...1.5 MiB1.5 MiB
ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a > img.watch_li_img ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a > img.watch_li_img
/svc/desking/1003/index/202604/X20250829165731_226_202604...1.3 MiB1.3 MiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/rcv.YNA.20260415.PYH2026041507940001...1.1 MiB1.1 MiB
ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img > img ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img > img
/news/cms/2026/04/14/news-p.v1.20260414.a79f341968d3408cb...1.3 MiB1.0 MiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.a8bc6d937bf24b03b...972.4 KiB967.1 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/rcv.YNA.20260415.PYH2026041509070001...940.7 KiB894.8 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/rcv.YNA.20260322.PYH2026032203500001...885.5 KiB880.1 KiB
ul#swiper-wrapper-ae04d3c69851e1014 > li.swiper-slide > a.today_photo > img.today_photo_img ul#swiper-wrapper-ae04d3c69851e1014 > li.swiper-slide > a.today_photo > img.today_photo_img
/news/cms/2026/04/14/rcv.YNA.20260414.PYH2026041406080005...906.0 KiB860.0 KiB
ul#swiper-wrapper-ae04d3c69851e1014 > li.swiper-slide > a.today_photo > img.today_photo_img ul#swiper-wrapper-ae04d3c69851e1014 > li.swiper-slide > a.today_photo > img.today_photo_img
/news/cms/2026/04/15/news-p.v1.20260415.e7309fb70c024e558...789.2 KiB743.3 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.ac740ef38c3f44108...748.7 KiB736.6 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.ba48d7e9060c4f23a...647.8 KiB642.5 KiB
ul > li > a > img ul > li > a > img
static.heraldcorp.com/wbazic/kh/mobile/image/kh_event_bnn_1600x900_260330.jpg610.5 KiB562.9 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.cd41881b69324a588...505.8 KiB464.2 KiB
ul#swiper-wrapper-ae04d3c69851e1014 > li.swiper-slide > a.today_photo > img.today_photo_img ul#swiper-wrapper-ae04d3c69851e1014 > li.swiper-slide > a.today_photo > img.today_photo_img
/news/cms/2026/04/15/news-p.v1.20260415.ec8c55107e4f48579...494.1 KiB451.5 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/rcv.YNA.20260414.PAF2026041415700100...485.4 KiB439.5 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.4dfd435e1f5d4bdf8...474.2 KiB419.3 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.cdee5da7c837489fb...392.6 KiB387.3 KiB
ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img > img ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img > img
/news/cms/2026/04/15/news-p.v1.20260415.ec6b5e90d600402aa...319.0 KiB191.4 KiB
ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img > img ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img > img
/news/cms/2026/04/13/news-p.v1.20260413.f89604c15d7e4fd9b...310.1 KiB183.0 KiB
ul#swiper-wrapper-ae04d3c69851e1014 > li.swiper-slide > a.today_photo > img.today_photo_img ul#swiper-wrapper-ae04d3c69851e1014 > li.swiper-slide > a.today_photo > img.today_photo_img
/news/cms/2026/04/14/news-p.v1.20260414.77451bf6eb434edeb...297.2 KiB179.8 KiB
ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a > img.watch_li_img ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a > img.watch_li_img
/svc/desking/1003/index/202604/X20250829165707_226_202604...192.8 KiB178.2 KiB
ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a > img.watch_li_img ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a > img.watch_li_img
/svc/desking/1003/index/202604/X20250905100912_226_202604...174.9 KiB157.9 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-a.v1.20260414.67fda352b34148e59...151.8 KiB135.6 KiB
Box office hit ‘Salmokji’ turns spooky reservoir into daredevil draw li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.d4e4e30f9554428a8...127.1 KiB121.9 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-a.v1.20260415.fc4d257c631d4d7a8...140.9 KiB113.3 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/13/news-p.v1.20260413.c8f0eac0c87b48278...107.8 KiB102.6 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-a.v1.20260415.e3c38970200d4d5c9...93.1 KiB86.2 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/svc/desking/1003/Kpop/202604/A10717586_238_2026041513121...79.2 KiB73.0 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-a.v1.20260415.1ec796c0d72444409...70.9 KiB65.5 KiB
Chasing luck? Try mountains or a luxury hotel li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/14/news-p.v1.20260414.cbd8a6bbeace47f0a...48.5 KiB43.4 KiB
IAEA chief says Iran enrichment freeze a ‘political decision,' stresses verific… li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.0de13e7cdfdc4bf19...28.2 KiB22.2 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/14/news-p.v1.20260414.9f625344d23a43c68...27.1 KiB21.4 KiB
모바일 메인_구독 ul > li > a > img#hbanner_74_180
wimg.heraldcorp.com/svc/banner/202501/fa744dda-c6e5-45e6-ac08-262656eea23e.png30.1 KiB19.2 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/14/news-p.v1.20260409.2b8e28ef9edd4d848...24.2 KiB18.9 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/14/news-p.v1.20260414.e5e779a1ebb94a639...18.7 KiB15.5 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/14/news-p.v1.20260413.05f15fcc2ed74c00b...16.8 KiB11.6 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-a.v1.20260414.8c532a7bff224fe5b...16.8 KiB11.6 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.eedd7a79057e473e8...16.9 KiB11.6 KiB
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
/news/cms/2026/04/15/news-p.v1.20260415.e272dd5789104f59a...27.6 KiB11.4 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 3.1 s

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 785 ms
URLTime Spent
m.koreaherald.com/885 ms

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 430 ms 6.1 KiB

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 90 ms 3.9 KiB
URLTransfer SizeEst Savings
static.heraldcorp.com/js/lib/utils.js?v=20260330143611.2 KiB3.9 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Other3.0 s
Script Evaluation1.7 s
Style & Layout1.1 s
Rendering912 ms
Script Parsing & Compilation303 ms
Parse HTML & CSS72 ms
Garbage Collection54 ms

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

More information about the performance of your application. These numbers don't directly affect the Performance score.

Layout shift culprits
Optimize DOM size
Font display
Modern HTTP
Optimize viewport for mobile
User Timing marks and measures 12 user timings
Avoid long main-thread tasks 13 long tasks found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 290 ms
Server Backend Latencies 1,160 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
INP breakdown
Avoid non-composited animations
Avoid large layout shifts
64

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body.body_column_4 > header > div#header_gnb_basic > button.header_menu body.body_column_4 > header > div#header_gnb_basic > button.header_menu

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
ul > li > a > img ul > li > a > img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img

Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the `select` element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Our site The Herald Business Herald Muse Real Foods Herald Eco Herald Design Th… body.body_column_4 > footer > div.footer_family > select

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body.body_column_4 > section.podcast > div.factor > iframe body.body_column_4 > section.podcast > div.factor > iframe
body.body_column_4 > section.podcast > iframe body.body_column_4 > section.podcast > iframe

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body.body_column_4 > header > div#header_gnb_basic > a.header_logo body.body_column_4 > header > div#header_gnb_basic > a.header_logo
body.body_column_4 > header > div#header_gnb_basic > a#mypage_icon body.body_column_4 > header > div#header_gnb_basic > a#mypage_icon
div > ul > li > a div > ul > li > a
div.swiper > ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img div.swiper > ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img
div.swiper > ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img div.swiper > ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img
div.swiper > ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img div.swiper > ul#swiper-wrapper-ae9078d2591ee507 > li.swiper-slide > a.section_graphic_swiper_img
div.swiper > ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a div.swiper > ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a
div.swiper > ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a div.swiper > ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a
div.swiper > ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a div.swiper > ul#swiper-wrapper-dd31196104bd210b2 > li.swiper-slide > a

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
The International Atomic Energy Agency chief said Wednesday that any agreement … ul.column_li > li > a.column > div.column_txt_sub
A deserted reservoir in Yesan, South Chungcheong Province, is emerging as an un… ul.column_li > li > a.column > div.column_txt_sub
If you spot someone taking a photo on a mountaintop or lingering over coffee at… ul.column_li > li > a.column > div.column_txt_sub
more section > div.column_title > a.column_title_more > p
Chinese brokers have been selling purported Test of Proficiency in Korean quest… li > a.column > div.column_t_bg > div.column_txt_sub
more section.section_graphic > div.column_title > a.column_title_more > p
more section.opinion > div.column_title > a.column_title_more > p
Korea Herald li.noimg > a.column > div.column_t_bg > div.column_cate
Korea Herald li.noimg > a.column > div.column_t_bg > div.column_cate
Korea Herald li.noimg > a.column > div.column_t_bg > div.column_cate
more section > div.column_title > a.column_title_more > p
more section > div.column_title > a.column_title_more > p
more section > div.column_title > a.column_title_more > p
more section > div.column_title > a.column_title_more > p
more section.podcast > div.column_title > a.column_title_more > p
more section.watch > div.column_title > a.column_title_more > p
more section > div.column_title > a.column_title_more > p
Life&Culture li > a.column > div.column_t_bg > div.column_cate
National li > a.column > div.column_t_bg > div.column_cate
Life&Culture li > a.column > div.column_t_bg > div.column_cate
more section > div.column_title > a.column_title_more > p
경제·금융 li > a.column > div.column_t_bg > div.column_cate
증권 li > a.column > div.column_t_bg > div.column_cate
국제 li > a.column > div.column_t_bg > div.column_cate
more section.notice > div.column_title > a.column_title_more > p
About korea herald footer > ul.footer_li > li > a
Contact Us footer > ul.footer_li > li > a
Location footer > ul.footer_li > li > a
User Agreement footer > ul.footer_li > li > a
Privacy Statement ul.footer_li > li > a > b
Youth Protection Policy footer > ul.footer_li > li > a
The Korea Herald by Herald Corporation Copyright Herald Corporation. All Rights… body.body_column_4 > footer > p.footer_copy
The Korea Herald by Herald Corporation body.body_column_4 > footer > p.footer_copy > b

These are opportunities to improve the legibility of your content.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Seoul City offers rabies vaccinations for pets for 10,000 won T-shirt weather: … body.body_column_4 > section > div.swiper > ul#swiper-wrapper-ae04d3c69851e1014
1 US YouTuber Johnny Somali gets jail time in Korea over deepfake, public stun… body.body_column_4 > section.section_rank > div.swiper > ul#swiper-wrapper-5f572b3fb0e91c88
1 / 3 body.body_column_4 > section.section_graphic > div.swiper > ul#swiper-wrapper-ae9078d2591ee507
KOSDAQ 1,152 30.55 USD/KRW 1,481.4 EUR/KRW 1,747.46 CNH/KRW 217.55 JPY(100)/… div.factor > a.stock_data > div.swiper > ul#swiper-wrapper-9ca627b03e463ab1
1 / 3 body.body_column_4 > section.watch > div.swiper > ul#swiper-wrapper-dd31196104bd210b2
Celeb Reads K-pop 101 100 Food Challenge K-parenting 101 body.body_column_4 > section.magazine > div.swiper > ul#swiper-wrapper-105dd246a10c54e8c

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
head > meta head > meta

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
Elements use only permitted ARIA attributes
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
Deprecated ARIA roles were not used
The page contains a heading, skip link, or landmark region
Uses ARIA roles only on compatible elements
Identical links have the same purpose.
`[accesskey]` values are unique
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
Elements with the `role=text` attribute do not have focusable descendents.
ARIA toggle fields have accessible names
ARIA `tooltip` elements have accessible names
ARIA `treeitem` elements have accessible names
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Definition list items are wrapped in `<dl>` elements
ARIA IDs are unique
No form fields have multiple labels
Heading elements appear in a sequentially-descending order
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
`<input type="image">` elements have `[alt]` text
Form elements have associated labels
Links are distinguishable without relying on color.
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Skip links are focusable.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Image elements do not have `[alt]` attributes that are redundant text.
Elements with visible text labels have matching accessible names.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
100

Best Practices

Uses HTTPS
Avoids deprecated APIs
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No browser errors logged to the console
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate clickjacking with XFO or CSP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
85

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
ul > li > a > img ul > li > a > img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img
li > a.column > div.column_img_bg > img.column_img li > a.column > div.column_img_bg > img.column_img

Format your HTML in a way that enables crawlers to better understand your app’s content.

Structured data is valid
Page isn’t blocked from indexing
Document has a `<title>` element
Document has a meta description
Page has successful HTTP status code
Links are crawlable
robots.txt is valid
Document has a valid `hreflang`
Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

51
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
71
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

4.69 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

9.71 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

0 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.126

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

5.69 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

9.75 s

Detailed Report

Audit breakdown by category with detailed findings.

51

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
/news/cms/2026/04/06/news-p.v1.20260406.c5c03b105fda4e05a...0.0 ms2.9 MiB
/news/cms/2026/04/12/news-p.v1.20260412.0a6d87e896864f909...0.0 ms2.2 MiB
/svc/desking/1003/index/202604/X20250829165731_226_202604...0.0 ms1.3 MiB
/news/cms/2026/04/14/news-p.v1.20260414.a79f341968d3408cb...0.0 ms1.3 MiB
/news/cms/2026/04/15/news-p.v1.20260415.80781896360a49fea...0.0 ms972.2 KiB
wimg.heraldcorp.com/svc/series/202601/583ceb39-4692-4f5d-be5a-69bbb42daab0.png0.0 ms848.2 KiB
/svc/desking/1003/index/202604/X20250829165800_226_202604...0.0 ms638.4 KiB
/news/cms/2026/04/15/news-p.v1.20260415.4dfd435e1f5d4bdf8...0.0 ms475.1 KiB
/news/cms/2026/04/15/news-p.v1.20260415.ec6b5e90d600402aa...0.0 ms319.7 KiB
/news/cms/2026/04/13/news-p.v1.20260413.f89604c15d7e4fd9b...0.0 ms310.9 KiB
/svc/desking/1003/index/202604/X20250829165707_226_202604...0.0 ms193.4 KiB
/svc/desking/1003/index/202604/X20250905100912_226_202604...0.0 ms175.4 KiB
api.climateclock.world/assets/widget-v2.js600.0 s160.5 KiB
wimg.heraldcorp.com/svc/banner/202501/9f74a8be-cfa2-487f-8ba2-7e4a37a70141.png0.0 ms116.9 KiB
static.heraldcorp.com/wbazic/kh/www/image/kh_event_bnn_pdf.jpg10800.0 s132.0 KiB
wimg.heraldcorp.com/svc/series/202412/89a89eba-7c0a-4f49-bfcf-d2372c7d2793.png0.0 ms56.3 KiB
static.heraldcorp.com/wbazic/kh/www/image/kh_event_bnn_770x100_260330.jpg10800.0 s80.2 KiB
wimg.heraldcorp.com/svc/banner/202604/3bd0f29e-8c63-4484-b276-845033672e53.jpg0.0 ms46.3 KiB
wimg.heraldcorp.com/svc/banner/202603/af9fab3a-a955-4ba4-98ba-3f966126cd96.jpg0.0 ms38.7 KiB
wimg.heraldcorp.com/svc/banner/202604/43885a48-8a60-4c1e-8189-71e4d4fe5235.jpg0.0 ms33.4 KiB
wimg.heraldcorp.com/svc/banner/202603/cfe68673-e5c3-4412-97d0-01aa3835188f.jpg0.0 ms32.2 KiB
t1.kakaocdn.net/kakao_js_sdk/v1/kakao.min.js2427.0 s34.5 KiB
wimg.heraldcorp.com/svc/banner/202510/316f4649-26cc-4d09-97f7-1745537cd982.jpg0.0 ms26.1 KiB
wimg.heraldcorp.com/svc/banner/202501/9232a43a-4d9c-4e6a-a239-44304cff78a5.jpg0.0 ms25.9 KiB
wimg.heraldcorp.com/svc/banner/202604/9a17034f-c6b5-41db-b06d-4627d32fc3e7.jpg0.0 ms24.4 KiB
wimg.heraldcorp.com/svc/banner/202603/810cf634-6d19-450a-a3fe-c704de60f5da.jpg0.0 ms21.0 KiB
wimg.heraldcorp.com/svc/banner/202412/ddc5ffa1-fec5-4fb2-9857-4fa66efd3af4.jpg0.0 ms20.9 KiB
wimg.heraldcorp.com/svc/banner/202511/10b7620c-008c-49f3-81d2-9b62cb326639.jpg0.0 ms17.2 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
ssl.pstatic.net/melona/libs/gfp-nac-module/synchronizer.js1945.0 s18.2 KiB
wimg.heraldcorp.com/svc/banner/202412/33637421-f556-4c41-bea3-0e7d9d26f580.jpg0.0 ms15.0 KiB
wimg.heraldcorp.com/svc/banner/202603/826e1dea-478b-444a-b60a-928d9f66fac8.jpg0.0 ms14.8 KiB
wimg.heraldcorp.com/svc/banner/202602/cdcd744b-a1bf-4856-845b-03d121d460a9.gif0.0 ms13.5 KiB
wimg.heraldcorp.com/svc/banner/202510/404470d6-93f9-450e-9001-886e979fa172.jpg0.0 ms11.9 KiB
wimg.heraldcorp.com/svc/banner/202411/b2b9a3bc-21f7-4619-a67d-2c0c490be8ea.jpg0.0 ms11.2 KiB
wcs.naver.net/wcslog.js191.0 s10.5 KiB
wimg.heraldcorp.com/svc/banner/202411/7dd8e3e2-7682-4320-90e6-d1018419676b.jpg0.0 ms9.0 KiB
wimg.heraldcorp.com/svc/banner/202603/98695ec8-c583-4e09-9dce-cbe6a2f56a91.jpg0.0 ms8.9 KiB
static.heraldcorp.com/js/lib/utils.js?v=20260205141310800.0 s11.6 KiB
wimg.heraldcorp.com/svc/banner/202603/ab5fd6ac-8413-4037-9664-d584e56ceff7.jpg0.0 ms7.4 KiB
wimg.heraldcorp.com/svc/banner/202411/ba0f5010-d01d-45f3-9eee-801bd1b2179c.jpg0.0 ms7.3 KiB
cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js604800.0 s43.2 KiB
static.heraldcorp.com/js/lib/utils.kh.hrd.js?v=20260205141310800.0 s4.7 KiB
static.heraldcorp.com/wbazic/kh/www/js/ui.js10800.0 s3.6 KiB
static.heraldcorp.com/wbazic/kh/www/image/img_other_logo_realfoods.png10800.0 s3.1 KiB
static.heraldcorp.com/js/lib/sscad.js?v=20260205141310800.0 s2.4 KiB
static.heraldcorp.com/js/lib/more.js?v=20260205141310800.0 s2.3 KiB
static.heraldcorp.com/js/lib/ajax.js?v=20260205141310800.0 s2.3 KiB
static.heraldcorp.com/js/lib/lazyimg.js10800.0 s2.2 KiB
open.spotify.com/embed/iframe-api/v10.0 ms1.3 KiB
static.heraldcorp.com/wbazic/kh/www/image/img_other_logo_hk.png10800.0 s1.5 KiB
cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.css604800.0 s5.1 KiB

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.12633599999999998] map[node:map[boundingRect:map[bottom:556 height:335 left:418 right:881 top:221 width:463] lhId:page-4-IMG nodeLabel:article.headline > div.headline_item > a.news_img > img path:1,HTML,1,BODY,1,MAIN,0,SECTION,0,ARTICLE,0,DIV,1,A,0,IMG selector:article.headline > div.headline_item > a.news_img > img snippet:<img src="https://wimg.heraldcorp.com/news/cms/2026/04/15/news-p.v1.20260415.8078189…" alt=""> type:node] score:0.122553] map[node:map[boundingRect:map[bottom:1439 height:484 left:110 right:881 top:955 width:771] lhId:page-47-ARTICLE nodeLabel:More stories Asian scholars slam Trump interventionism in joint statement Sig… path:1,HTML,1,BODY,1,MAIN,0,SECTION,3,ARTICLE selector:body > main.div_layout > section > article.base snippet:<article class="base"> type:node] score:0.002819 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:925 height:100 left:110 right:880 top:825 width:770] lhId:page-20-IMG nodeLabel:section > article.gallerybanner > a > img path:1,HTML,1,BODY,1,MAIN,0,SECTION,1,ARTICLE,0,A,0,IMG selector:section > article.gallerybanner > a > img snippet:<img src="//static.heraldcorp.com/wbazic/kh/www/image/kh_event_bnn_770x100_260330.jpg" alt=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:373 height:130 left:110 right:398 top:243 width:288] lhId:page-50-P nodeLabel:Seoul locks in 273m barrels oil, 2.1m tons naphtha shielded from Hormuz risks path:1,HTML,1,BODY,1,MAIN,0,SECTION,0,ARTICLE,0,DIV,0,DIV,0,A,1,P selector:div.headline_item > div.news_txt > a.txt_area > p.news_title snippet:<p class="news_title ellipsis4"> type:node] score:0.000859 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/frankruhllibre/v23/j8_w6_fAw7jrcalD7oKYNX0QfAnPW7Dl4brkiY8.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMaxKUBHMdazTgWw.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:89 height:26 left:1053 right:1240 top:63 width:187] lhId:page-52-UL nodeLabel:Log in Print edition path:1,HTML,1,BODY,0,HEADER,0,DIV,3,UL selector:body > header > div.header_area > ul.header_btn_list snippet:<ul class="header_btn_list"> type:node] score:0.000105] map[node:map[boundingRect:map[bottom:373 height:130 left:110 right:398 top:243 width:288] lhId:page-50-P nodeLabel:Seoul locks in 273m barrels oil, 2.1m tons naphtha shielded from Hormuz risks path:1,HTML,1,BODY,1,MAIN,0,SECTION,0,ARTICLE,0,DIV,0,DIV,0,A,1,P selector:div.headline_item > div.news_txt > a.txt_area > p.news_title snippet:<p class="news_title ellipsis4"> type:node] score:0]]

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:9.442 source:map[column:72337 line:13 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:22.992 source:map[column:4766 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js urlProvider:network]] map[reflowTime:73.415 source:map[column:10640 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js urlProvider:network]] map[reflowTime:2.99 source:map[column:11120 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js urlProvider:network]] map[reflowTime:0.487 source:map[column:16608 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js urlProvider:network]] map[reflowTime:4.802 source:map[column:48353 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js urlProvider:network]] map[reflowTime:0.658 source:map[column:16330 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link > img ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link > img
/news/cms/2026/04/06/news-p.v1.20260406.c5c03b105fda4e05a...2.9 MiB2.8 MiB
ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link > img ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link > img
/news/cms/2026/04/12/news-p.v1.20260412.0a6d87e896864f909...2.2 MiB2.1 MiB
li > a > div.watch_img > img li > a > div.watch_img > img
/svc/desking/1003/index/202604/X20250829165731_226_202604...1.3 MiB1.3 MiB
ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link > img ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link > img
/news/cms/2026/04/14/news-p.v1.20260414.a79f341968d3408cb...1.3 MiB1.2 MiB
article.headline > div.headline_item > a.news_img > img article.headline > div.headline_item > a.news_img > img
/news/cms/2026/04/15/news-p.v1.20260415.80781896360a49fea...970.8 KiB911.8 KiB
Celeb Reads a > div.series_img > div.img_wrap > img
wimg.heraldcorp.com/svc/series/202601/583ceb39-4692-4f5d-be5a-69bbb42daab0.png846.9 KiB845.2 KiB
li > a > div.watch_img > img li > a > div.watch_img > img
/svc/desking/1003/index/202604/X20250829165800_226_202604...637.3 KiB630.2 KiB
article.top_news > a > div.news_img > img article.top_news > a > div.news_img > img
/news/cms/2026/04/15/news-p.v1.20260415.4dfd435e1f5d4bdf8...474.2 KiB460.8 KiB
ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link > img ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link > img
/news/cms/2026/04/15/news-p.v1.20260415.ec6b5e90d600402aa...319.0 KiB280.6 KiB
ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link > img ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link > img
/news/cms/2026/04/13/news-p.v1.20260413.f89604c15d7e4fd9b...310.1 KiB271.9 KiB
li > a > div.watch_img > img li > a > div.watch_img > img
/svc/desking/1003/index/202604/X20250829165707_226_202604...192.8 KiB185.8 KiB
li.div_item > a > div.news_img > img li.div_item > a > div.news_img > img
/news/cms/2026/04/15/news-p.v1.20260415.cd41881b69324a588...193.1 KiB177.6 KiB
li > a > div.watch_img > img li > a > div.watch_img > img
/svc/desking/1003/index/202604/X20250905100912_226_202604...174.9 KiB167.4 KiB
article.our_subscribe > a > div.news_img > img article.our_subscribe > a > div.news_img > img
/news/cms/2026/04/15/news-a.v1.20260414.67fda352b34148e59...151.8 KiB140.8 KiB
When BTS reads, the world follows li > a > div.news_img > img
/news/cms/2026/03/21/news-a.v1.20260321.017bb290d9e84606b...116.3 KiB115.0 KiB
li.div_item > a > div.news_img > img li.div_item > a > div.news_img > img
/news/cms/2026/04/15/news-p.v1.20260415.d4e4e30f9554428a8...127.1 KiB112.7 KiB
cooking ul > li > a > img#hbanner_120_195
wimg.heraldcorp.com/svc/banner/202501/9f74a8be-cfa2-487f-8ba2-7e4a37a70141.png116.4 KiB112.0 KiB
li.swiper-slide > a > div.photo_img > img li.swiper-slide > a > div.photo_img > img
/news/cms/2026/04/15/news-p.v1.20260415.ec8c55107e4f48579...113.6 KiB104.4 KiB
li > a > div.news_img > img li > a > div.news_img > img
/svc/desking/1003/Kpop/202604/A10717586_238_2026041513121...79.2 KiB73.6 KiB
li.div_item > a > div.news_img > img li.div_item > a > div.news_img > img
/news/cms/2026/04/15/news-a.v1.20260415.fc4d257c631d4d7a8...85.2 KiB70.4 KiB
section > article.gallerybanner > a > img section > article.gallerybanner > a > img
static.heraldcorp.com/wbazic/kh/www/image/kh_event_bnn_770x100_260330.jpg79.7 KiB67.2 KiB
li.swiper-slide > a > div.photo_img > img li.swiper-slide > a > div.photo_img > img
/news/cms/2026/04/14/news-a.v1.20260414.f5313389ba644bc98...73.2 KiB64.1 KiB
K-pop 101 a > div.series_img > div.img_wrap > img
wimg.heraldcorp.com/svc/series/202412/89a89eba-7c0a-4f49-bfcf-d2372c7d2793.png55.8 KiB55.1 KiB
20260325_신한카드 ul > li > a > img#hbanner_101_945
wimg.heraldcorp.com/svc/banner/202603/af9fab3a-a955-4ba4-98ba-3f966126cd96.jpg38.3 KiB33.9 KiB
article.our_subscribe > a > div.news_img > img article.our_subscribe > a > div.news_img > img
/news/cms/2026/04/14/news-p.v1.20260409.2b8e28ef9edd4d848...37.4 KiB26.3 KiB
li > a > div.news_img > img li > a > div.news_img > img
/svc/desking/1003/index/202604/A10717012_398_202604151205...24.0 KiB22.7 KiB
li > a > div.news_img > img li > a > div.news_img > img
/svc/desking/1003/LifenCulture/202604/A10717658_234_20260...23.6 KiB22.3 KiB
Director’s bookshelf offers clues to ‘The King’s Warden’ phenomenon li > a > div.news_img > img
/news/cms/2026/03/25/news-p.v1.20260325.a24db66b64e741228...22.5 KiB21.3 KiB
PC구독배너 ul > li > a > img#hbanner_125_181
wimg.heraldcorp.com/svc/banner/202501/9232a43a-4d9c-4e6a-a239-44304cff78a5.jpg25.5 KiB21.1 KiB
Meet, perhaps date your favorite K-pop star with VR headgear li > a > div.news_img > img
/news/cms/2025/06/24/news-p.v1.20250624.ca4c97833f2c4ac1b...22.0 KiB20.9 KiB
20260402_KB증권 ul > li > a > img#hbanner_102_973
wimg.heraldcorp.com/svc/banner/202604/9a17034f-c6b5-41db-b06d-4627d32fc3e7.jpg24.0 KiB19.6 KiB
li > a > div.news_img > img li > a > div.news_img > img
/news/cms/2026/04/15/news-a.v1.20260415.53e4919c87d8483a8...15.8 KiB14.6 KiB
article.gallery_list > div.gallery > div.gallery_img > div.gallery_img_book article.gallery_list > div.gallery > div.gallery_img > div.gallery_img_book
static.heraldcorp.com/wbazic/kh/www/image/kh_event_bnn_pdf.jpg131.5 KiB13.9 KiB
li > a > div.news_img > img li > a > div.news_img > img
/news/cms/2026/04/15/news-p.v1.20260415.d4e4e30f9554428a8...15.0 KiB13.7 KiB
Bringing Bay Area swagger to K-pop: Inside the journey of SM’s former hitmaker li > a > div.news_img > img
/news/cms/2025/05/30/news-p.v1.20250528.efd5b9beb1084fe9b...13.9 KiB12.8 KiB
li.div_item > a > div.news_img > img li.div_item > a > div.news_img > img
/news/cms/2026/04/15/rcv.YNA.20260415.PYH2026041509070001...25.6 KiB11.2 KiB
PC 메인 배너1 ul > li > a > img#hbanner_100_137
wimg.heraldcorp.com/svc/banner/202412/33637421-f556-4c41-bea3-0e7d9d26f580.jpg14.6 KiB10.2 KiB
메인 하단 배너1 ul > li > a > img#hbanner_61_83
wimg.heraldcorp.com/svc/banner/202411/b2b9a3bc-21f7-4619-a67d-2c0c490be8ea.jpg10.8 KiB9.0 KiB
li.swiper-slide > a > div.photo_img > img li.swiper-slide > a > div.photo_img > img
/news/cms/2026/04/14/rcv.YNA.20260414.PYH2026041406080005...16.1 KiB6.9 KiB
메인 하단 배너2 ul > li > a > img#hbanner_62_84
wimg.heraldcorp.com/svc/banner/202411/7dd8e3e2-7682-4320-90e6-d1018419676b.jpg8.5 KiB6.7 KiB
li > a > div.news_img > img li > a > div.news_img > img
/news/cms/2026/04/15/news-p.v1.20260415.e272dd5789104f59a...12.2 KiB6.5 KiB
li.swiper-slide > a > div.photo_img > img li.swiper-slide > a > div.photo_img > img
/news/cms/2026/04/15/news-p.v1.20260415.e7309fb70c024e558...15.4 KiB6.2 KiB
메인 하단 배너3 - 리더스 클럽 ul > li > a > img#hbanner_63_85
wimg.heraldcorp.com/svc/banner/202411/ba0f5010-d01d-45f3-9eee-801bd1b2179c.jpg6.9 KiB5.0 KiB
20260326_제호-우리은행퇴직연금 ul > li > a > img#hbanner_77_948
wimg.heraldcorp.com/svc/banner/202603/ab5fd6ac-8413-4037-9664-d584e56ceff7.jpg7.0 KiB4.7 KiB
li > a > div.news_img > img li > a > div.news_img > img
/news/cms/2026/04/15/news-p.v1.20260415.a94609f028f448eea...5.7 KiB4.4 KiB
li > a > div.news_img > img li > a > div.news_img > img
/news/cms/2026/04/15/news-p.v1.20260415.a94609f028f448eea...5.7 KiB4.4 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:1642.85 label:Time to first byte subpart:timeToFirstByte] map[duration:517.455 label:Resource load delay subpart:resourceLoadDelay] map[duration:4834.676 label:Resource load duration subpart:resourceLoadDuration] map[duration:51.919 label:Element render delay subpart:elementRenderDelay]]
lhId: page-4-IMG
nodeLabel: article.headline > div.headline_item > a.news_img > img
path: 1,HTML,1,BODY,1,MAIN,0,SECTION,0,ARTICLE,0,DIV,1,A,0,IMG
selector: article.headline > div.headline_item > a.news_img > img
snippet: <img src="https://wimg.heraldcorp.com/news/cms/2026/04/15/news-p.v1.20260415.8078189…" alt="">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-4-IMG
nodeLabel: article.headline > div.headline_item > a.news_img > img
path: 1,HTML,1,BODY,1,MAIN,0,SECTION,0,ARTICLE,0,DIV,1,A,0,IMG
selector: article.headline > div.headline_item > a.news_img > img
snippet: <img src="https://wimg.heraldcorp.com/news/cms/2026/04/15/news-p.v1.20260415.8078189…" alt="">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 975 ms
URLTime Spent
koreaherald.com/975 ms
www.koreaherald.com/0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
article.headline > div.headline_item > a.news_img > img article.headline > div.headline_item > a.news_img > img
0.123
More stories Asian scholars slam Trump interventionism in joint statement Sig… body > main.div_layout > section > article.base
0.003
Seoul locks in 273m barrels oil, 2.1m tons naphtha shielded from Hormuz risks div.headline_item > div.news_txt > a.txt_area > p.news_title
0.001
Log in Print edition body > header > div.header_area > ul.header_btn_list
0.000
Seoul locks in 273m barrels oil, 2.1m tons naphtha shielded from Hormuz risks div.headline_item > div.news_txt > a.txt_area > p.news_title
0.000
W3.5b is the new entry to Korea’s top 1% li > a > div.news_txt > p.news_title
0.000
li.menu > button.btn_all_menu > em.bar_wrap > span.all_menu_bar2 li.menu > button.btn_all_menu > em.bar_wrap > span.all_menu_bar2
0.000
Seoul locks in 273m barrels oil, 2.1m tons naphtha shielded from Hormuz risks div.headline_item > div.news_txt > a.txt_area > p.news_title
0.000
Sports div.nav_area > ul.gnb > li > a
0.000

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 40 ms 13.9 KiB
URLTransfer SizeEst Savings
static.heraldcorp.com/wbazic/kh/www/css/common.css?pp=20260416081970.1 KiB13.9 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 7.9 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
cooking ul > li > a > img#hbanner_120_195
wimg.heraldcorp.com/svc/banner/202501/9f74a8be-cfa2-487f-8ba2-7e4a37a70141.png
section > article.gallerybanner > a > img section > article.gallerybanner > a > img
static.heraldcorp.com/wbazic/kh/www/image/kh_event_bnn_770x100_260330.jpg
PC구독배너 ul > li > a > img#hbanner_125_181
wimg.heraldcorp.com/svc/banner/202501/9232a43a-4d9c-4e6a-a239-44304cff78a5.jpg
PC 메인 배너1 ul > li > a > img#hbanner_100_137
wimg.heraldcorp.com/svc/banner/202412/33637421-f556-4c41-bea3-0e7d9d26f580.jpg
20260325_신한카드 ul > li > a > img#hbanner_101_945
wimg.heraldcorp.com/svc/banner/202603/af9fab3a-a955-4ba4-98ba-3f966126cd96.jpg
20260402_KB증권 ul > li > a > img#hbanner_102_973
wimg.heraldcorp.com/svc/banner/202604/9a17034f-c6b5-41db-b06d-4627d32fc3e7.jpg
20260326_제호-우리은행퇴직연금 ul > li > a > img#hbanner_77_948
wimg.heraldcorp.com/svc/banner/202603/ab5fd6ac-8413-4037-9664-d584e56ceff7.jpg
메인 하단 배너1 ul > li > a > img#hbanner_61_83
wimg.heraldcorp.com/svc/banner/202411/b2b9a3bc-21f7-4619-a67d-2c0c490be8ea.jpg
메인 하단 배너2 ul > li > a > img#hbanner_62_84
wimg.heraldcorp.com/svc/banner/202411/7dd8e3e2-7682-4320-90e6-d1018419676b.jpg
메인 하단 배너3 - 리더스 클럽 ul > li > a > img#hbanner_63_85
wimg.heraldcorp.com/svc/banner/202411/ba0f5010-d01d-45f3-9eee-801bd1b2179c.jpg
리얼푸드 ul.div_layout > li.div_item > strong.section_title > img
static.heraldcorp.com/wbazic/kh/www/image/img_other_logo_realfoods.png
헤럴드경제 ul.div_layout > li.div_item > strong.section_title > img
static.heraldcorp.com/wbazic/kh/www/image/img_other_logo_hk.png

More information about the performance of your application. These numbers don't directly affect the Performance score.

Optimize DOM size
Font display
Modern HTTP
Optimize viewport for mobile
Max Potential First Input Delay 40 ms
User Timing marks and measures 10 user timings
JavaScript execution time 0.3 s
Minimizes main-thread work 1.3 s
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 290 ms
Server Backend Latencies 410 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 310 ms
INP breakdown
Avoid long main-thread tasks
Avoid non-composited animations
71

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.search_wrap > div.search_bar > form > button.btn_search div.search_wrap > div.search_bar > form > button.btn_search
div.header_area > ul.header_btn_list > li.menu > button.btn_all_menu div.header_area > ul.header_btn_list > li.menu > button.btn_all_menu

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.search_wrap > div.search_bar > form > input#q div.search_wrap > div.search_bar > form > input#q

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
aside > article.podcast > div.podcast_area > iframe aside > article.podcast > div.podcast_area > iframe
article.watch_listen > article.listen > div.listen_area > iframe article.watch_listen > article.listen > div.listen_area > iframe

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section > article.headline > div.headline_item > a.news_img section > article.headline > div.headline_item > a.news_img
main.div_layout > section > article.gallerybanner > a main.div_layout > section > article.gallerybanner > a
div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link
div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link
div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link
div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link
div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3 > li.swiper-slide > a.graphic_news_link
div.gallery > ul.gallery_down_li > li > a.gallery_down_li_btn div.gallery > ul.gallery_down_li > li > a.gallery_down_li_btn
article.watch > ul.watch_list > li > a article.watch > ul.watch_list > li > a
article.watch > ul.watch_list > li > a article.watch > ul.watch_list > li > a
article.watch > ul.watch_list > li > a article.watch > ul.watch_list > li > a
article.watch > ul.watch_list > li > a article.watch > ul.watch_list > li > a

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Print edition div.header_area > ul.header_btn_list > li.subscribe > a.btn_subscribe
For our subscribers div.nav_area > ul.nav_btn_list > li > a.btn_subscribers
English Cafe div.nav_area > ul.nav_btn_list > li > a.btn_english_cafe

These are opportunities to improve the legibility of your content.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
5 / 5 article.graphic_news > div.graphic_swiper_wrap > div.graphic_swiper > ul#swiper-wrapper-29a98a6d840352a3
KOSDAQ 1,152 30.55 USD/KRW1,481.4 EUR/KRW1,747.46 CNH/KRW217.55 JPY(100)/KRW932… article.factor > a.stock_data > div.swiper > ul#swiper-wrapper-a6b105d5ec8dfa7d9
Seoul City offers rabies vaccinations for pets for 10,000 won T-shirt weather:… article.today_photo > div.today_photo_swiper_wrap > div.today_photo_swiper > ul#swiper-wrapper-29320914b4ec497c
1 US YouTuber Johnny Somali gets jail time in Korea over deepfake, public stu… aside > article.most_popular > div.most_popular_swiper > ul#swiper-wrapper-aa9d4e06dc80d744

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
head > meta head > meta

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Image elements have `[alt]` attributes
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
Elements use only permitted ARIA attributes
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
Document has a main landmark.
Deprecated ARIA roles were not used
Uses ARIA roles only on compatible elements
Image elements do not have `[alt]` attributes that are redundant text.
Identical links have the same purpose.
`[accesskey]` values are unique
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
Elements with the `role=text` attribute do not have focusable descendents.
ARIA toggle fields have accessible names
ARIA `tooltip` elements have accessible names
ARIA `treeitem` elements have accessible names
The page contains a heading, skip link, or landmark region
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Definition list items are wrapped in `<dl>` elements
ARIA IDs are unique
No form fields have multiple labels
Heading elements appear in a sequentially-descending order
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
`<input type="image">` elements have `[alt]` text
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Elements with visible text labels have matching accessible names.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
96

Best Practices

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
Uncaught TypeError: Cannot read properties of undefined (reading 'top')
Uncaught TypeError: Cannot read properties of undefined (reading 'top')
Uses HTTPS
Avoids deprecated APIs
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate clickjacking with XFO or CSP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Structured data is valid
Page isn’t blocked from indexing
Document has a `<title>` element
Document has a meta description
Page has successful HTTP status code
Links are crawlable
robots.txt is valid
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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