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Audit Complete

Results for https://archdaily.com

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Corporate / Enterprise · estimated Tracking: leads
Spain Spain · Madrid Completed: Apr 21, 2026 20:25 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)
C73

Site Health

Score: 73 / 100

Based on 8 categories, 0 sections

Room to improve — your 26.9s 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.

Solid infrastructure — fast server responses across the board.

Mostly compliant — a few items need attention.

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

Amazon Route 53 · 669 peers
You 73
·
Avg 72
At average
0 50 100
Better than 50% of Amazon Route 53 sites See full Amazon Route 53 benchmark →
Consent Manager · 15 peers
You 73
·
Avg 73
At average
0 50 100
Better than 33% of Consent Manager sites See full Consent Manager 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

HSTS header is missing

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

Security › Security Headers
3

No Content-Security-Policy header found

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

Security › Content Security Policy
4

Page weighs 23.8 MB (20.2 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget
5

1 button(s) with no accessible text

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Link & Button Quality
View fix priority matrix

Fix Priority Matrix

5 findings

Quick Wins

3

High impact, low effort — start here.

Strategic

2

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 performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 26.9s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Addressing the critical issues below would have the most immediate impact on your user trust.

3 security gaps detected — browsers may warn visitors about your site.
Your LCP is 26.9s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.
1 accessibility issue excludes users who rely on assistive technology.

Conversion Barriers

2 critical 5 warning

7 barrier(s) likely increasing bounce by ~28%.

Speed (2)

Page takes 26.9s to load

+12% bounce

Users abandon at ~3s — you're 24.4s over the 2.5s threshold

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

Page feels frozen for 899ms

+5% bounce

Clicks on the primary CTA are ignored while JavaScript runs

Fix: Break up long tasks; defer non-critical JavaScript to post-hydration

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 (1)

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 (1)

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 (1)

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

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

Return on Investment

$500 investment → $5.08/month returns + USD 150,000 risk avoided

Payback period: > 2 years First-year ROI: -88%

Investment

$500

5h · 5 findings

Monthly returns

$5.08 /mo

~$61 / year

  • Bandwidth savings $5.08

Regulatory risk avoided

USD 150,000

if kept compliant

  • ADA Title III USD 150,000

$150 — 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

$500

5.0 developer hours at $100/hr

Based on United States rates ($100/hr)

Quick wins
$150 3 fixes in ~90 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions
$ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

$12,505 / month at risk

~$150,061 / year if left unfixed

Compliance Risk

$150,000

ADA Title III
  • No <main> landmark found
    ADA Title III: USD 25,000 – USD 150,000
  • 4 of 4 <nav> elements are unlabeled
    ADA Title III: USD 25,000 – USD 150,000
  • Skip navigation link is missing (WCAG 2.4.1)
    ADA Title III: USD 25,000 – USD 150,000

+2 more

Bandwidth Waste

$5.08 /mo

63473.8 MB/mo × 0.080 USD/GB

  • Optimize transfer: save ~6.3 MB per page load
    Saves $5.08/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.

33
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
74
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.

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

15.39 s

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

26.88 s

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

899 ms

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

0.071

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

15.39 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.

28.11 s

Detailed Report

Audit breakdown by category with detailed findings.

33

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
assets.adsttc.com/campus-award/videos/winners_2025_background.mp40.0 ms13.4 MiB
/uploads/photo/image/416627/full_The_Penguin_Parade_Visit...604800.0 s1.0 MiB
cdn-eu.piano.io/api/tinypass.min.js14400.0 s132.8 KiB
/uploads/photo/image/351203/full_Motion_10200.jpg?v=17477...604800.0 s880.3 KiB
/uploads/photo/image/368801/full_08-WALL-W1-PanDOMO.jpg?v...604800.0 s655.1 KiB
/uploads/photo/image/199864/full_RHEINZINK_double_standin...604800.0 s566.2 KiB
assets.adsttc.com/campus-award/fonts/Parabole.woff0.0 ms44.3 KiB
cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-2186400.0 s101.1 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
/delivery/customdata/bV8xLndfNjQ2MDgucl9HRFBSLmxfZW4uZF8z...3600.0 s24.4 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
assets.adsttc.com/about_landing/images/ecc-logo.svg0.0 ms14.9 KiB
assets.adsttc.com/about_landing/images/holcim-logo.svg0.0 ms11.5 KiB
cdn.moengage.com/release/dc_2/moe_webSdk.min.latest.js1209600.0 s101.0 KiB
assets.adsttc.com/about_landing/images/waf-logo.svg0.0 ms8.7 KiB
assets.adsttc.com/about_landing/images/un-logo.svg0.0 ms6.9 KiB
/ng/common/i18n/platform-translation-map_en_US.js?version...86400.0 s14.0 KiB
cdn.cxense.com/cx.cce.js3600.0 s6.8 KiB
assets.adsttc.com/about_landing/images/awards-logo.svg0.0 ms5.3 KiB
/_sam/H4sIAAAAAAAA_z3IwQ6AIAgA0B9KmJ76m4bJHI6oBa7f7-bt7eE...603327.0 s52.6 KiB
/showtemplate/general/loadTranslationMap?aid=oEPwH7BCpe&v...86400.0 s11.3 KiB
cdn.consentmanager.net/delivery/customcmp/64608.js1800.0 s4.9 KiB
buy-eu.piano.io/widget/dist/template/css/template.bundle.1.0.css14400.0 s5.5 KiB
js.sentry-cdn.com/6c63a55ef2f64fb69b6182ac526c50b6.min.js3600.0 s2.6 KiB
assets.adsttc.com/about_landing/images/uia-logo.svg0.0 ms2.1 KiB
www.npttech.com/advertising.js28800.0 s3.0 KiB
experience-eu.piano.io/xbuilder/experience/load?aid=oEPwH7BCpe1800.0 s1.9 KiB
nrd.adsttc.com/my/myarchdaily.min.css?v=1.40.0 ms1.3 KiB
tru.am/scripts/ta-pagesocial-sdk.js2419200.0 s10.9 KiB
assets.adsttc.com/doodles/flat/logo-blue-isotype.svg0.0 ms960 B
assets.adsttc.com/img/icon-chevron-arrow-down.svg0.0 ms902 B
cdn.consentmanager.net/delivery/recall/logos/6460886400.0 s1.5 KiB
assets.adsttc.com/javascripts/adex.js0.0 ms442 B
/Repo/rep.gif?ver=3.3.0&typ=pgv&rnd=mo92nh36qgy8hu6w&sid=...0.0 ms411 B
/img.gif?_rand=3959823392329463.5&ii=1776803035856_0.2596...0.0 ms323 B
/ev.gif?_rand=912335095984280.2&ii=1776803035856_0.259636...0.0 ms236 B
/ev.gif?_rand=2197322962474536&ii=1776803035856_0.2596365...0.0 ms236 B
/da/v3/?ce=eyJwbGF0Zm9ybSI6ImFkIiwiYXBwSWQiOiJuaW1yb2QiLC...0.0 ms158 B
/da/v3/?ce=eyJwbGF0Zm9ybSI6ImFkIiwiYXBwSWQiOiJuaW1yb2QiLC...0.0 ms157 B
tru.am/scripts/custom/archdaily.js2419200.0 s1.4 KiB
cdn.moengage.com/release/dc_2/sdk.gtm.min.latest.js1209600.0 s1.1 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.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

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:20.752 source:map[column:127245 line:1 type:source-location url:https://cdn-eu.piano.io/api/tinypass.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:36.233 source:map[type:text value:[unattributed]]] map[reflowTime:0.688 source:map[column:40 line:0 type:source-location url:https://assets.adsttc.com/nrd-251/application-ea9adf307a8930b4aeeb23dda1f8d64181c348ebf95a58d0592fde701c37a917.js urlProvider:network]] map[reflowTime:0.895 source:map[column:33759 line:0 type:source-location url:https://cdn-eu.piano.io/api/tinypass.min.js urlProvider:network]] map[reflowTime:0.553 source:map[column:143979 line:0 type:source-location url:https://cdn-eu.piano.io/api/tinypass.min.js urlProvider:network]] map[reflowTime:19.304 source:map[column:297534 line:0 type:source-location url:https://cdn-eu.piano.io/api/tinypass.min.js urlProvider:network]] map[reflowTime:0.049 source:map[column:151957 line:0 type:source-location url:https://cdn-eu.piano.io/api/tinypass.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
Fire-Rated Plywood in Penguin Parade Visitor Centre div.swiper-wrapper > div.swiper-slide > a > img.related-products__img
/uploads/photo/image/416627/full_The_Penguin_Parade_Visit...1.0 MiB972.6 KiB
Kinetic Façade Pivot Shading System – Motion 10200 div.swiper-wrapper > div.swiper-slide > a > img.related-products__img
/uploads/photo/image/351203/full_Motion_10200.jpg?v=17477...878.9 KiB825.6 KiB
Pandomo Wall (W1 2.0) div.swiper-wrapper > div.swiper-slide > a > img.related-products__img
/uploads/photo/image/368801/full_08-WALL-W1-PanDOMO.jpg?v...654.0 KiB582.0 KiB
Zinc Roof Systems - Double Lock Standing Seam div.swiper-wrapper > div.swiper-slide > a > img.related-products__img
/uploads/photo/image/199864/full_RHEINZINK_double_standin...565.2 KiB517.5 KiB
GS House / Studio FP02 - Houses figure#newsroom-picture-att-id-69bc2b586d207e00012362fc > a.js-image-size__link > picture > img
/media/images/69bc/2b58/6d20/7e00/0123/62fc/medium_jpg/0Z...86.9 KiB56.6 KiB
Newhouse Building Replacement / Miller Hull Partnership - Other Public Administ… figure#newsroom-picture-att-id-69e694678471200001f8ec5c > a.js-image-size__link > picture > img
/media/images/69e6/9467/8471/2000/01f8/ec5c/medium_jpg/Mi...72.6 KiB42.5 KiB
Light Structures, Heavy Footprints? The Environmental Paradox of Lightweight Ma… figure#newsroom-picture-att-id-69e56da01afd70018891424b > a.js-image-size__link > picture > img
/media/images/69e5/6da0/1afd/7001/8891/424b/medium_jpg/li...54.3 KiB24.1 KiB
Centre Pompidou Expands to Seoul with the New Hanwha Center Designed by Wilmott… figure#newsroom-picture-att-id-69e697241afd7001889145b1 > a.js-image-size__link > picture > img
/media/images/69e6/9724/1afd/7001/8891/45b1/medium_jpg/ce...51.8 KiB23.6 KiB
Artistic Office of a Notary / Dolgopiatova Interior Design - Offices Interiors figure#newsroom-picture-att-id-69d65c265a31310001daed11 > a.js-image-size__link > picture > img
/media/images/69d6/5c26/5a31/3100/01da/ed11/medium_jpg/14...41.7 KiB6.5 KiB

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

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
js.sentry-cdn.com/6c63a55ef2f64fb69b6182ac526c50b6.min.js2.6 KiB752 ms

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

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

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: 801 ms
URLTime Spent
archdaily.com/801 ms
www.archdaily.com/0.0 ms

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

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 minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation2.7 s
Other891 ms
Style & Layout545 ms
Script Parsing & Compilation524 ms
Parse HTML & CSS182 ms
Rendering121 ms
Garbage Collection88 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in a sub frame.Actionable

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.

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.

Sharjah Architecture Triennial Presents "A Journey into Architecture Archives" … figure#newsroom-picture-att-id-69e744531afd7001889146bc > a.js-image-size__link > picture > img
Why Do We Want to Float? The Psychology of Lightness in Architecture - Featured… figure#newsroom-picture-att-id-69d8378192c07a01883e7cc2 > a.js-image-size__link > picture > img
Goethe-Institut Sénégal / Kéré Architecture - Exterior Photography, Cultural … figure#newsroom-picture-att-id-69e5fdab1afd700188914393 > a.js-image-size__link > picture > img
Jingu Studio / YNAS - Interior Photography, Renovation, Lighting, Chair figure#newsroom-picture-att-id-69e63a985fed03017ff72a88 > a.js-image-size__link > picture > img
House & Office SH / 1-1 Architects - Interior Photography, Houses, Beam figure#newsroom-picture-att-id-69e239558471200001f8ead4 > a.js-image-size__link > picture > img
Tietê178 / Gabriel Kogan - Exterior Photography, Office Buildings figure#newsroom-picture-att-id-69d3ca515a31310001daea7f > a.js-image-size__link > picture > img
Limberlost Place / Moriyama Teshima Architects - Exterior Photography, Higher E… figure#newsroom-picture-att-id-69e045fb8471200001f8e910 > a.js-image-size__link > picture > img
Trim House / Robert Konieczny + KWK Promes - Houses figure#newsroom-picture-att-id-69d955d592c07a59b6364d91 > a.js-image-size__link > picture > img
Jaali, Mashrabiya, Cobogó: The Lightest Skins in Architecture - Featured Image figure#newsroom-picture-att-id-69de5dc61afd7001889132bc > a.js-image-size__link > picture > img
House of Light Oaxaca / T804 Arquitectura e Interiorismo Estratégico - Interior… figure#newsroom-picture-att-id-69d8b95887e3da0001efb522 > a.js-image-size__link > picture > img

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

Layout shift culprits
Optimize DOM size
LCP breakdown
LCP request discovery
Modern HTTP
Optimize viewport for mobile
Minify CSS
Minify JavaScript
User Timing marks and measures 5 user timings
Avoid long main-thread tasks 19 long tasks found
Network Requests
Network Round Trip Times 100 ms
Server Backend Latencies 70 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 30 ms
Avoid large layout shifts 4 layout shifts found
INP breakdown
Avoid non-composited animations
74

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.

ARIA

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body#js-home > div.tp-modal > div.tp-iframe-wrapper body#js-home > div.tp-modal > div.tp-iframe-wrapper

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

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.auth-container > button.close-button div.auth-container > button.close-button
div.auth-container > button.close-button div.auth-container > button.close-button
body#js-home > div.tp-modal > div.tp-iframe-wrapper > button.tp-close body#js-home > div.tp-modal > div.tp-iframe-wrapper > button.tp-close

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#js-home > div.tp-modal > div.tp-iframe-wrapper > iframe#offer_7d3f992b914609e59ba7-0 body#js-home > div.tp-modal > div.tp-iframe-wrapper > iframe#offer_7d3f992b914609e59ba7-0

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
div.footer-content > div.repel > div.cluster > a div.footer-content > div.repel > div.cluster > a
div.footer-content > div.repel > div.cluster > a div.footer-content > div.repel > div.cluster > a
div.footer-content > div.repel > div.cluster > a div.footer-content > div.repel > div.cluster > a
div.footer-content > div.repel > div.cluster > a div.footer-content > div.repel > div.cluster > a
div.footer-content > div.repel > div.cluster > a div.footer-content > div.repel > div.cluster > 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
div.afd-mobile-search-form__container > form#afd-search-actions-mobile > div.afd-nav__search__searchfield > input.afd-nav__search__input div.afd-mobile-search-form__container > form#afd-search-actions-mobile > div.afd-nav__search__searchfield > input.afd-nav__search__input

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Terms of Use div.afd-container-main > div.kth-toast__body > h3.kth-toast__call > a
Privacy Policy div.afd-container-main > div.kth-toast__body > h3.kth-toast__call > a
Cookie Policy div.afd-container-main > div.kth-toast__body > h3.kth-toast__call > a
BRAZIL div.afd-specs > div.afd-specs__header > div.afd-specs__header-location > a

These are opportunities to improve the legibility of your content.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
By using ArchDaily, you agree to our Terms of Use, Privacy Policy and Cookie Po… div.kth-toast > div.afd-container-main > div.kth-toast__body > h3.kth-toast__call

These are opportunities to improve keyboard navigation in your application.

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
Form elements have associated labels
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
`[aria-hidden="true"]` elements do not contain focusable descendents
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
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
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.
`[lang]` attributes have a valid value
Document has a main landmark.
Deprecated ARIA roles were not used
Identical links have the same purpose.
`[accesskey]` values are unique
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
`<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.
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
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.
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
Not signed in with the identity provider.
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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Folders body#js-home > nav#js-afd-nav > div.afd-mobile-navigation > a.afd-mobile-navigation__item-container
-6 span.afd-specs__key > span.project_spec_manufacturers > span.project_other_spec_manufacturers > a.hide_hidden_manufacturers

To appear in search results, crawlers need access to your app.

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 have descriptive text
robots.txt is valid
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

69
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
70
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
92
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.

1.73 s

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

3.58 s

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

29 ms

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

0.001

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

2.55 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.

4.83 s

Detailed Report

Audit breakdown by category with detailed findings.

69

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.

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.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
Fire-Rated Plywood in Penguin Parade Visitor Centre div.swiper-wrapper > div.swiper-slide > a > img.related-products__img
/uploads/photo/image/416627/full_The_Penguin_Parade_Visit...1.0 MiB978.0 KiB
Kinetic Façade Pivot Shading System – Motion 10200 div.swiper-wrapper > div.swiper-slide > a > img.related-products__img
/uploads/photo/image/351203/full_Motion_10200.jpg?v=17477...878.9 KiB822.5 KiB
Pandomo Wall (W1 2.0) div.swiper-wrapper > div.swiper-slide > a > img.related-products__img
/uploads/photo/image/368801/full_08-WALL-W1-PanDOMO.jpg?v...654.0 KiB587.3 KiB
Zinc Roof Systems - Double Lock Standing Seam div.swiper-wrapper > div.swiper-slide > a > img.related-products__img
/uploads/photo/image/199864/full_RHEINZINK_double_standin...565.2 KiB514.7 KiB
div#feat_posts > div#id1 > a.id1 > div.carousel-img-large div#feat_posts > div#id1 > a.id1 > div.carousel-img-large
/media/images/69cc/6e59/bacd/cd01/89fe/c1c0/newsletter/qi...291.1 KiB222.4 KiB
Hitachi Air Conditioning div#main-sidebar > div#home-page-banners-top > a > img.b-lazy
/uploads/subscription/home_page_banner/3297/ADGLOBAL_HP_A...203.4 KiB197.8 KiB
LAMILUX div#main-sidebar > div#home-page-banners-top > a > img.b-lazy
/uploads/subscription/home_page_banner/3230/Screenshot_20...183.9 KiB178.3 KiB
Aurubis div#main-sidebar > div#home-page-banners-top > a > img.b-lazy
/uploads/subscription/home_page_banner/3628/ADEN_Aurubis_...179.1 KiB173.5 KiB
GS House / Studio FP02 - Houses figure#newsroom-picture-att-id-69bc2b586d207e00012362fc > a.js-image-size__link > picture > img
/media/images/69bc/2b58/6d20/7e00/0123/62fc/newsletter/0Z...172.4 KiB128.0 KiB
div#feat_posts > div#id3 > a.id3 > div.carousel-img-large div#feat_posts > div#id3 > a.id3 > div.carousel-img-large
/media/images/69ce/580f/ad37/3f01/80b4/f8e9/newsletter/la...196.9 KiB127.0 KiB
Goppion div#main-sidebar > div#home-page-banners-top > a > img.b-lazy
/uploads/subscription/home_page_banner/2873/Homepage_Bann...112.9 KiB107.3 KiB
div#feat_posts > div.id1 > a > div.carousel-img-small div#feat_posts > div.id1 > a > div.carousel-img-small
/media/images/69cc/6e59/bacd/cd01/89fe/c1c0/medium_jpg/qi...141.1 KiB107.1 KiB
Newhouse Building Replacement / Miller Hull Partnership - Other Public Administ… figure#newsroom-picture-att-id-69e694678471200001f8ec5c > a.js-image-size__link > picture > img
/media/images/69e6/9467/8471/2000/01f8/ec5c/newsletter/Mi...141.2 KiB96.9 KiB
div#feat_posts > div.id3 > a > div.carousel-img-small div#feat_posts > div.id3 > a > div.carousel-img-small
/media/images/69ce/580f/ad37/3f01/80b4/f8e9/medium_jpg/la...103.6 KiB68.9 KiB
Light Structures, Heavy Footprints? The Environmental Paradox of Lightweight Ma… figure#newsroom-picture-att-id-69e56da01afd70018891424b > a.js-image-size__link > picture > img
/media/images/69e5/6da0/1afd/7001/8891/424b/newsletter/li...105.9 KiB61.4 KiB
div#editorschoice > figure > a > div.editorchoice-img div#editorschoice > figure > a > div.editorchoice-img
/media/images/69bd/b976/5102/3701/89e8/0240/medium_jpg/in...79.0 KiB50.7 KiB
li.streamPost-bookmark > div.single-bookmark > a.afd-icon-text > i.afd-icon-text__icon li.streamPost-bookmark > div.single-bookmark > a.afd-icon-text > i.afd-icon-text__icon
/afd/icons-sdc9894cf38-c006001cb055248cf1dffd0dd44d7c3e0b...61.2 KiB26.6 KiB
Casa Lèvanzo / Margine - Exterior Photography, Houses figure#newsroom-picture-att-id-69d960e092c07a59b6364e57 > a.js-image-size__link > picture > img
/media/images/69d9/60e0/92c0/7a59/b636/4e57/newsletter/ca...73.1 KiB19.9 KiB
div#feat_posts > div#id2 > a.id2 > div.carousel-img-large div#feat_posts > div#id2 > a.id2 > div.carousel-img-large
/media/images/69cd/2c30/5abc/4f01/8981/3ee2/newsletter/th...72.1 KiB11.0 KiB
div.afd-post-stream > div.afd-post-content > figure#newsroom-picture-att-id-69e56da01afd70018891424b > i.figcaption-cc-icon div.afd-post-stream > div.afd-post-content > figure#newsroom-picture-att-id-69e56da01afd70018891424b > i.figcaption-cc-icon
/nrd-251/icons-sa9d402c496-ca81db861a0d551cd2006ed4f88600...15.3 KiB9.3 KiB
div#feat_posts > div.id2 > a > div.carousel-img-small div#feat_posts > div.id2 > a > div.carousel-img-small
/media/images/69cd/2c30/5abc/4f01/8981/3ee2/medium_jpg/th...37.1 KiB6.9 KiB
GS House / Studio FP02 - Houses div.afd-post-content > p.thumbs > a.thumbs__link > img.thumbs__img
/media/images/69bc/2b58/6d20/7e00/0123/62f6/thumb_jpg/0Z7...6.6 KiB4.5 KiB

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-DIV
nodeLabel: div#feat_posts > div#id1 > a.id1 > div.carousel-img-large
path: 1,HTML,1,BODY,18,DIV,0,DIV,0,DIV,0,DIV,0,A,0,DIV
selector: div#feat_posts > div#id1 > a.id1 > div.carousel-img-large
snippet: <div class="carousel-img-large cover-img" style="background-image: url(&quot;https://images.adsttc.com/media/images/69cc/6e59/bac…&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

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
assets.adsttc.com/campus-award/videos/winners_2025_background.mp40.0 ms13.4 MiB
/uploads/photo/image/416627/full_The_Penguin_Parade_Visit...604800.0 s1.0 MiB
cdn-eu.piano.io/api/tinypass.min.js14400.0 s132.8 KiB
/uploads/photo/image/351203/full_Motion_10200.jpg?v=17477...604800.0 s880.3 KiB
/uploads/photo/image/368801/full_08-WALL-W1-PanDOMO.jpg?v...604800.0 s655.1 KiB
/uploads/photo/image/199864/full_RHEINZINK_double_standin...604800.0 s566.2 KiB
assets.adsttc.com/campus-award/fonts/Parabole.woff0.0 ms44.3 KiB
cdn.consentmanager.net/delivery/js/cmp_final.min.js?t=2026-4-2186400.0 s100.9 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
/uploads/subscription/home_page_banner/3297/ADGLOBAL_HP_A...604800.0 s204.0 KiB
/delivery/customdata/bV8xLndfNjQ2MDgucl9HRFBSLmxfZW4uZF8z...3600.0 s24.4 KiB
/uploads/subscription/home_page_banner/3230/Screenshot_20...604800.0 s184.4 KiB
/uploads/subscription/home_page_banner/3628/ADEN_Aurubis_...604800.0 s179.7 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
assets.adsttc.com/about_landing/images/ecc-logo.svg0.0 ms14.9 KiB
assets.adsttc.com/about_landing/images/holcim-logo.svg0.0 ms11.5 KiB
/uploads/subscription/home_page_banner/2873/Homepage_Bann...604800.0 s113.4 KiB
cdn.moengage.com/release/dc_2/moe_webSdk.min.latest.js1209600.0 s101.0 KiB
assets.adsttc.com/about_landing/images/waf-logo.svg0.0 ms8.7 KiB
assets.adsttc.com/about_landing/images/un-logo.svg0.0 ms6.9 KiB
/ng/common/i18n/platform-translation-map_en_US.js?version...86400.0 s14.0 KiB
cdn.cxense.com/cx.cce.js3600.0 s6.8 KiB
assets.adsttc.com/about_landing/images/awards-logo.svg0.0 ms5.3 KiB
/_sam/H4sIAAAAAAAA_z3IwQ6AIAgA0B9KmJ76m4bJHI6oBa7f7-bt7eE...603308.0 s52.6 KiB
/showtemplate/general/loadTranslationMap?aid=oEPwH7BCpe&v...86400.0 s11.3 KiB
cdn.consentmanager.net/delivery/customcmp/64608.js1800.0 s4.9 KiB
buy-eu.piano.io/widget/dist/template/css/template.bundle.1.0.css14400.0 s5.5 KiB
js.sentry-cdn.com/6c63a55ef2f64fb69b6182ac526c50b6.min.js3600.0 s2.6 KiB
assets.adsttc.com/about_landing/images/uia-logo.svg0.0 ms2.1 KiB
www.npttech.com/advertising.js28800.0 s3.0 KiB
experience-eu.piano.io/xbuilder/experience/load?aid=oEPwH7BCpe1800.0 s1.9 KiB
nrd.adsttc.com/my/myarchdaily.min.css?v=1.40.0 ms1.3 KiB
tru.am/scripts/ta-pagesocial-sdk.js2419200.0 s10.9 KiB
assets.adsttc.com/doodles/flat/logo-blue-isotype.svg0.0 ms960 B
cdn.consentmanager.net/delivery/recall/logos/6460886400.0 s1.5 KiB
assets.adsttc.com/javascripts/adex.js0.0 ms442 B
/Repo/rep.gif?ver=3.3.0&typ=pgv&rnd=mo92nvmyqtravhvo&sid=...0.0 ms414 B
/img.gif?_rand=3779669089437588.5&ii=1776803054550_0.2525...0.0 ms323 B
/ev.gif?_rand=7228773376008109&ii=1776803054550_0.2525590...0.0 ms236 B
/ev.gif?_rand=456422103089013.6&ii=1776803054550_0.252559...0.0 ms236 B
/ev.gif?_rand=4541446709081267&ii=1776803054550_0.2525590...0.0 ms236 B
/ev.gif?_rand=1496405870319823.5&ii=1776803054550_0.25255...0.0 ms236 B
/da/v3/?ce=eyJwbGF0Zm9ybSI6ImFkIiwiYXBwSWQiOiJuaW1yb2QiLC...0.0 ms157 B
/da/v3/?ce=eyJwbGF0Zm9ybSI6ImFkIiwiYXBwSWQiOiJuaW1yb2QiLC...0.0 ms157 B
tru.am/scripts/custom/archdaily.js2419200.0 s1.4 KiB
cdn.moengage.com/release/dc_2/sdk.gtm.min.latest.js1209600.0 s1.1 KiB

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
js.sentry-cdn.com/6c63a55ef2f64fb69b6182ac526c50b6.min.js2.6 KiB202 ms

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: 247 ms
URLTime Spent
archdaily.com/247 ms
www.archdaily.com/0.0 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

Diagnostics

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

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in a sub frame.Actionable

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.

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
Logo body#js-home > div#cmpbox > div.cmplogo > img.cmpdl
cdn.consentmanager.net/delivery/img/logo1719948004x8759.gif
Sharjah Architecture Triennial Presents "A Journey into Architecture Archives" … figure#newsroom-picture-att-id-69e744531afd7001889146bc > a.js-image-size__link > picture > img
Why Do We Want to Float? The Psychology of Lightness in Architecture - Featured… figure#newsroom-picture-att-id-69d8378192c07a01883e7cc2 > a.js-image-size__link > picture > img
Goethe-Institut Sénégal / Kéré Architecture - Exterior Photography, Cultural … figure#newsroom-picture-att-id-69e5fdab1afd700188914393 > a.js-image-size__link > picture > img
Jingu Studio / YNAS - Interior Photography, Renovation, Lighting, Chair figure#newsroom-picture-att-id-69e63a985fed03017ff72a88 > a.js-image-size__link > picture > img
House & Office SH / 1-1 Architects - Interior Photography, Houses, Beam figure#newsroom-picture-att-id-69e239558471200001f8ead4 > a.js-image-size__link > picture > img
Tietê178 / Gabriel Kogan - Exterior Photography, Office Buildings figure#newsroom-picture-att-id-69d3ca515a31310001daea7f > a.js-image-size__link > picture > img
Limberlost Place / Moriyama Teshima Architects - Exterior Photography, Higher E… figure#newsroom-picture-att-id-69e045fb8471200001f8e910 > a.js-image-size__link > picture > img
Trim House / Robert Konieczny + KWK Promes - Houses figure#newsroom-picture-att-id-69d955d592c07a59b6364d91 > a.js-image-size__link > picture > img
Jaali, Mashrabiya, Cobogó: The Lightest Skins in Architecture - Featured Image figure#newsroom-picture-att-id-69de5dc61afd7001889132bc > a.js-image-size__link > picture > img
House of Light Oaxaca / T804 Arquitectura e Interiorismo Estratégico - Interior… figure#newsroom-picture-att-id-69d8b95887e3da0001efb522 > a.js-image-size__link > picture > img

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

Max Potential First Input Delay 100 ms
Layout shift culprits
Optimize DOM size
Forced reflow
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Minify CSS
Minify JavaScript
User Timing marks and measures 5 user timings
JavaScript execution time 0.6 s
Minimizes main-thread work 1.8 s
Avoid long main-thread tasks 2 long tasks found
Avoid non-composited animations 3 animated elements found
Network Requests
Network Round Trip Times 100 ms
Server Backend Latencies 220 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 20 ms
Avoid large layout shifts 2 layout shifts found
INP breakdown
70

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.

ARIA

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Search div#js-header__bottom-nav-search > div.jv-container > form#afd-search-actions > input.embeded_search_text

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body#js-home > div.tp-modal > div.tp-iframe-wrapper body#js-home > div.tp-modal > div.tp-iframe-wrapper

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

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.auth-container > button.close-button div.auth-container > button.close-button
div.auth-container > button.close-button div.auth-container > button.close-button
body#js-home > div.tp-modal > div.tp-iframe-wrapper > button.tp-close body#js-home > div.tp-modal > div.tp-iframe-wrapper > button.tp-close

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#js-home > div.tp-modal > div.tp-iframe-wrapper > iframe#offer_7d3f992b914609e59ba7-0 body#js-home > div.tp-modal > div.tp-iframe-wrapper > iframe#offer_7d3f992b914609e59ba7-0

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
Home header.jv-header > div#js-header__bottom-nav-search > div.jv-container > a.jv-nav__logo
div#feat_box > div#feat_posts > div.id1 > a.small div#feat_box > div#feat_posts > div.id1 > a.small
div.footer-content > div.repel > div.cluster > a div.footer-content > div.repel > div.cluster > a
div.footer-content > div.repel > div.cluster > a div.footer-content > div.repel > div.cluster > a
div.footer-content > div.repel > div.cluster > a div.footer-content > div.repel > div.cluster > a
div.footer-content > div.repel > div.cluster > a div.footer-content > div.repel > div.cluster > a
div.footer-content > div.repel > div.cluster > a div.footer-content > div.repel > div.cluster > 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
Search div#js-header__bottom-nav-search > div.jv-container > form#afd-search-actions > input.embeded_search_text

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
sign-up div.afd-container-main > div.kth-toast__body > p.afd-desktop-e > a

These are opportunities to improve the legibility of your content.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
By using ArchDaily, you agree to our Terms of Use, Privacy Policy and Cookie Po… div.kth-toast > div.afd-container-main > div.kth-toast__body > h3.kth-toast__call

These are opportunities to improve keyboard navigation in your application.

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 are valid and not misspelled
Image elements have `[alt]` attributes
Form elements have associated labels
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
`[aria-hidden="true"]` elements do not contain focusable descendents
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
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
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.
`[lang]` attributes have a valid value
Document has a main landmark.
Deprecated ARIA roles were not used
Identical links have the same purpose.
`[accesskey]` values are unique
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
`<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.
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
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.
92

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
GS House / Studio FP02 - More Images div.afd-post-content > p.thumbs > a.gallery-link > img.thumbs__img
/media/images/69bc/2b58/6d20/7e00/0123/62fc/newsletter/0Z...115 x 115 (1.00)750 x 500 (1.50)

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
[GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token.
Not signed in with the identity provider.
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
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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Folders body#js-home > nav#js-afd-nav > div.afd-mobile-navigation > a.afd-mobile-navigation__item-container
-6 span.afd-specs__key > span.project_spec_manufacturers > span.project_other_spec_manufacturers > a.hide_hidden_manufacturers

To appear in search results, crawlers need access to your app.

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 have descriptive text
robots.txt is valid
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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