C — https://vox.com | BeaverCheck Audit

Site Health

Score: 73 / 100

Based on 8 categories, 0 sections

Room to improve — your 34.1s 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.

Strong compliance posture across regulations.

Rich content metadata — your pages look great everywhere.

Reasonable footprint with room for optimization.

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

Vox Media · 7 peers

You 73

Avg 73

At average

0 50 100

Better than 14% of Vox Media sites See full Vox Media benchmark →

WordPress · 413 peers

You 73

Avg 74

At average

0 50 100

Better than 29% of WordPress sites See full WordPress benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

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

Security › Security Headers

Cookie '_vm_consent_type' is missing the Secure flag

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

Security › Cookie Security

No Content-Security-Policy header found

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

Security › Content Security Policy

Page weighs 14.5 MB (5.8 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget

1 control(s) without accessible label

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

Accessibility › Form Accessibility

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

Embed this badge

Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fvox.com)](https://beavercheck.com/results/c91cf37a-3cd4-43a4-a6ac-993b73c1225f)

HTML

<a href="https://beavercheck.com/results/c91cf37a-3cd4-43a4-a6ac-993b73c1225f"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fvox.com" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fvox.com

This badge auto-updates with your latest scan result.

What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 34.1s 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 34.1s — 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 ~29%.

Speed (2)

Page takes 34.1s to load

+12% bounce

Users abandon at ~3s — you're 31.6s over the 2.5s threshold

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

Page feels frozen for 3.8s

+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)

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

Navigation (2)

6 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

2 broken link(s) on the page

+3% 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

$500 investment → $1.45/month returns + USD 157,500 risk avoided

Payback period: > 2 years First-year ROI: -97%

Investment

$500

5h · 5 findings

Monthly returns

$1.45 /mo

~$17 / year

Bandwidth savings $1.45

Regulatory risk avoided

USD 157,500

if kept compliant

ADA Title III USD 150,000
CCPA/CPRA USD 7,500

$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

Custom rate

$ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

$13,126 / month at risk

~$157,517 / year if left unfixed

Compliance Risk

$157,500

ADA Title IIICCPA/CPRA

3 advertising/retargeting trackers detected
CCPA/CPRA: USD 2,500 – USD 7,500
2 of 4 <nav> elements are unlabeled
ADA Title III: USD 25,000 – USD 150,000
No H1 heading found
ADA Title III: USD 25,000 – USD 150,000

+1 more

Bandwidth Waste

$1.45 /mo

18154.2 MB/mo × 0.080 USD/GB

Optimize transfer: save ~1.8 MB per page load
Saves $1.45/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

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

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.

Performance

Accessibility

Best Practices

SEO

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.

2.80 s

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

34.11 s

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

3.76 s

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

0.035

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

9.31 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.

35.59 s

Detailed Report

Audit breakdown by category with detailed findings.

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.

Request	Cache TTL	Transfer Size
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js	3600.0 s	104.3 KiB
c.amazon-adsystem.com/aax2/apstag.js	3600.0 s	91.0 KiB
cdn.cookielaw.org/scripttemplates/202602.1.0/otBannerSdk.js	86400.0 s	129.0 KiB
btloader.com/tag?o=6315858775244800&upapi=true	300.0 s	36.9 KiB
pub.doubleverify.com/dvtag/21236410/DV464041/pub.js	900.0 s	33.6 KiB
secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js	900.0 s	21.7 KiB
assets.zephr.com/zephr-browser/1.9.1/zephr-browser.umd.js	0.0 ms	13.3 KiB
experiments.parsely.com/vip-experiments.js?apiKey=vox.com	30.0 s	8.9 KiB
cdn.cookielaw.org/scripttemplates/202602.1.0/otTCF.js	86400.0 s	17.8 KiB
cdn.concert.io/lib/concert-concierge.2.10.1.min.js	86400.0 s	16.6 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js	86400.0 s	9.1 KiB
config.aps.amazon-adsystem.com/configs/3176	3600.0 s	4.4 KiB
sb.scorecardresearch.com/internal-cs/default/beacon-and.js	86400.0 s	7.8 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg	86400.0 s	2.6 KiB
/logos/451d8686-ff0b-4065-9afa-6289c6cb87c3/01917b43-b3e8...	86400.0 s	2.3 KiB
apps.voxmedia.com/ad-block-detect/test_ads_prebid_blocker.js	0.0 ms	378 B
www.gstatic.com/recaptcha/api2/logo_48.png	604800.0 s	2.3 KiB

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.

URL	Est Savings
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	35 ms

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:83.043 source:map[type:text value:[unattributed]]]]

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.

	URL	Resource Size	Est Savings
America, Actually `div.duet--content-cards--content-card > div._1agz5xb8 > div > img.mvmjsc0`	www.vox.com/static-assets/podcasts/america-actually.png	1.0 MiB	1.0 MiB
What to do about burnout at work `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/Burnout.png?quality=9...	113.1 KiB	107.9 KiB
Unexplainable `div.duet--content-cards--content-card > div._1agz5xb8 > div > img.mvmjsc0`	www.vox.com/static-assets/podcasts/unexplainable2.jpeg	89.6 KiB	88.7 KiB
My partner and I don’t share many interests. Should we break up? `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-221927762...	89.9 KiB	85.7 KiB
8 ways to zone out and relax that don’t involve being on your phone `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-223820685...	55.3 KiB	51.5 KiB
The Gray Area `div.duet--content-cards--content-card > div._1agz5xb8 > div > img.mvmjsc0`	www.vox.com/static-assets/podcasts/the-gray-area.png	46.7 KiB	45.8 KiB
The war in Iran isn’t ending — it’s becoming something new `div.vy7vxs2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/gettyimages-227166874...	60.5 KiB	45.5 KiB
The tax code rewards generosity. But probably not yours. `div.q92cap1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/gettyimages-226818196...	55.8 KiB	41.9 KiB
What trainers actually think about the 12-3-30 workout `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/gettyimages-226092996...	42.9 KiB	40.0 KiB
How to make unemployment suck a little less `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-142099938...	27.1 KiB	25.3 KiB
The case for AI realism `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/gettyimages-226807157...	25.0 KiB	23.2 KiB
How Americans really feel about immigration `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/gettyimages-218635846...	26.5 KiB	22.7 KiB
How to ask for help when you’re really going through it `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-75489153....	24.3 KiB	22.6 KiB
Why millennials are feral for chicken Caesar wraps `div.q92cap2 > div.q92cap3 > div._1agz5xb7 > img._1agz5xbf`	/wp-content/uploads/sites/2/2026/04/CCW_04.png?quality=90...	19.8 KiB	18.9 KiB
Rubén Gallego on why he defended Eric Swalwell — and why he regrets it now `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/gettyimages-224249349...	21.7 KiB	18.7 KiB
The simple question that could change your career `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-225125095...	19.9 KiB	18.5 KiB
The simple question that could change your career `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-225125095...	16.8 KiB	14.4 KiB
Why it feels like there’s never enough time for your relationships `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/YMMV_4-10.jpg?quality...	14.7 KiB	13.7 KiB
Why it feels like there’s never enough time for your relationships `div.ox2lvn2 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/YMMV_4-10.jpg?quality...	14.4 KiB	12.4 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

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

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.

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

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.

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: 752 ms

URL	Time Spent
vox.com/	752 ms
www.vox.com/	0.0 ms

Diagnostics

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.

Estimated savings: 300 ms 36.9 KiB

URL	Transfer Size	Est Savings
	23.5 KiB	20.5 KiB
www.vox.com/_next/static/css/05d88cec0dec7d53.css	27.4 KiB	16.4 KiB

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

Estimated savings: 5.8 s 956.5 KiB

URL	Transfer Size	Est Savings
www.vox.com/metrics/gtm.js?id=GTM-WQ5FM5W	696.8 KiB	212.6 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.8 KiB	177.0 KiB
www.vox.com/_next/static/chunks/pages/_app-3159785359f717d1.js	442.1 KiB	172.1 KiB
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...	187.7 KiB	130.6 KiB
www.vox.com/metrics/gtd?id=AW-926030959&cx=c&gtm=4e64h1	143.0 KiB	72.2 KiB
www.vox.com/metrics/?id=G-C3QZPB4GVE&cx=c&gtm=4e64h1	155.9 KiB	65.3 KiB
cdn.cookielaw.org/scripttemplates/202602.1.0/otBannerSdk.js	128.8 KiB	60.1 KiB
c.amazon-adsystem.com/aax2/apstag.js	90.5 KiB	37.9 KiB
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js	56.0 KiB	28.8 KiB

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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.vox.com/_next/static/chunks/pages/_app-3159785359f717d1.js	2.5 s	2.0 s	239 ms
Unattributable	1.8 s	440 ms	0.0 ms
www.vox.com/	1.5 s	17 ms	0.6 ms
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...	933 ms	831 ms	44 ms
cdn.cookielaw.org/scripttemplates/202602.1.0/otTCF.js	919 ms	827 ms	7.3 ms
www.vox.com/_next/static/chunks/framework-8e0f3cf51af7b1e2.js	917 ms	859 ms	15 ms
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js	899 ms	701 ms	43 ms
www.vox.com/metrics/gtm.js?id=GTM-WQ5FM5W	448 ms	336 ms	82 ms
cdn.cookielaw.org/scripttemplates/202602.1.0/otBannerSdk.js	442 ms	290 ms	45 ms
www.vox.com/metrics/?id=G-C3QZPB4GVE&cx=c&gtm=4e64h1	321 ms	277 ms	42 ms
c.amazon-adsystem.com/aax2/apstag.js	285 ms	235 ms	42 ms
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	234 ms	142 ms	83 ms
www.vox.com/metrics/gtd?id=AW-926030959&cx=c&gtm=4e64h1	224 ms	189 ms	33 ms
btloader.com/tag?o=6315858775244800&upapi=true	186 ms	167 ms	10 ms
pub.doubleverify.com/dvtag/21236410/DV464041/pub.js	126 ms	105 ms	8.3 ms
www.vox.com/_next/static/chunks/main-2d72d2950d961b0b.js	89 ms	75 ms	11 ms
luminousboulevard.com/assets/js/n3x3pe0fuo_se.index.js	88 ms	74 ms	8.4 ms
www.googletagservices.com/tag/js/gpt.js	80 ms	70 ms	10 ms
www.vox.com/_next/static/chunks/pages/resource/homepage-3e923f1749340d9d.js	64 ms	56 ms	7.6 ms
config.aps.amazon-adsystem.com/configs/3176	61 ms	56 ms	3.5 ms
sb.scorecardresearch.com/cs/7976662/beacon.js	59 ms	56 ms	3.2 ms
secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js	53 ms	45 ms	7.5 ms

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.

Category	Time Spent
Script Evaluation	8.4 s
Other	2.0 s
Script Parsing & Compilation	783 ms
Style & Layout	715 ms
Rendering	484 ms
Garbage Collection	363 ms
Parse HTML & CSS	219 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 reason	Failure type
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
www.vox.com/static-assets/podcasts/america-actually.png	1.0 MiB
www.vox.com/metrics/gtm.js?id=GTM-WQ5FM5W	697.8 KiB
www.vox.com/_next/static/chunks/pages/_app-3159785359f717d1.js	442.7 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	362.4 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.9 KiB
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...	187.7 KiB
www.vox.com/metrics/?id=G-C3QZPB4GVE&cx=c&gtm=4e64h1	156.3 KiB
www.vox.com/metrics/gtd?id=AW-926030959&cx=c&gtm=4e64h1	143.7 KiB
cdn.cookielaw.org/scripttemplates/202602.1.0/otBannerSdk.js	129.0 KiB
/wp-content/uploads/sites/2/2026/04/Burnout.png?quality=9...	113.5 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.


Sponsor Logo `div._1yq350vc > div._1yq350v6 > div._1yq350vh > img._1yq350vg`

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

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 18 user timings

●Avoid long main-thread tasks 20 long tasks found

●Avoid non-composited animations 1 animated element found

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 100 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 0 ms

●Avoid large layout shifts 6 layout shifts found

○INP breakdown

○LCP request discovery

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.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Privacy Notice `div._1ujku670 > ul._1ujku671 > li._1ujku672 > a._1ujku673`
Terms of Use `div._1ujku670 > ul._1ujku671 > li._1ujku672 > a._1ujku673`
Platform Status `div._1ujku670 > ul._1ujku671 > li._1ujku672 > a._1ujku673`
Careers `div._1ujku670 > ul._1ujku671 > li._1ujku672 > a._1ujku673`

These items highlight common accessibility best practices.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Cookie Policy `div#onetrust-group-container > div#onetrust-policy > div#onetrust-policy-text > a.ot-cookie-policy-link`

○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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●ARIA attributes are used as specified for the element's role

●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●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.

●Links have a discernible name

●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

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○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

○`<frame>` or `<iframe>` elements have a title

○`<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.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○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.

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.

Source	Description
www.vox.com/_next/static/chunks/pages/_app-3159785359f717d1.js line 171, col 29410	`ConcertAds: (148ms) loadMotifTargeting failed to fetch targeting from https://cdn.concert.io/lookup/`
www.vox.com/blaize/datalayer	`Failed to load resource: the server responded with a status of 401 ()`
cdn.concert.io/lookup/aHR0cHM6Ly93d3cudm94LmNvbS8=.json	`Failed to load resource: the server responded with a status of 404 ()`

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Map URL
www.vox.com/metrics/gtm.js?id=GTM-WQ5FM5W
www.vox.com/_next/static/chunks/pages/_app-3159785359f717d1.js
cdnjs.cloudflare.com/ajax/libs/blueimp-md5/2.19.0/js/md5.min.js	cdnjs.cloudflare.com/ajax/libs/blueimp-md5/2.19.0/js/md5.min.js.map
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js	cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js.map

●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 DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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.

Link destination	Link Text
www.vox.com/even-better	MORE
www.vox.com/future-perfect	MORE
www.vox.com/explainers	MORE
www.vox.com/politics	MORE
www.vox.com/culture	MORE
www.vox.com/advice	MORE

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`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

100

Accessibility

Best Practices

SEO

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.

861 ms

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

2.26 s

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

442 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.

2.52 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.

6.77 s

Detailed Report

Audit breakdown by category with detailed findings.

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.

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 ▾

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.

Request	Cache TTL	Transfer Size
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js	3600.0 s	104.3 KiB
c.amazon-adsystem.com/aax2/apstag.js	3600.0 s	90.9 KiB
btloader.com/tag?o=6315858775244800&upapi=true	300.0 s	36.9 KiB
pub.doubleverify.com/dvtag/21236410/DV464041/pub.js	900.0 s	33.6 KiB
secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js	900.0 s	21.7 KiB
assets.zephr.com/zephr-browser/1.9.1/zephr-browser.umd.js	0.0 ms	13.3 KiB
experiments.parsely.com/vip-experiments.js?apiKey=vox.com	30.0 s	8.9 KiB
cdn.concert.io/lib/concert-concierge.2.10.1.min.js	86400.0 s	16.6 KiB
config.aps.amazon-adsystem.com/configs/3176	3600.0 s	4.4 KiB
/dvtp_src.js	900.0 s	3.8 KiB
sb.scorecardresearch.com/internal-cs/default/beacon.js	86400.0 s	6.7 KiB
pagead2.googlesyndication.com/pagead/images/adchoices/en.png	86400.0 s	2.5 KiB
apps.voxmedia.com/ad-block-detect/test_ads_prebid_blocker.js	0.0 ms	378 B
www.gstatic.com/recaptcha/api2/logo_48.png	604800.0 s	2.3 KiB
pagead2.googlesyndication.com/pagead/images/adchoices/adchoices_blue_wb.png	86400.0 s	233 B

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.

URL	Est Savings
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	35 ms

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:85.955 source:map[type:text value:[unattributed]]]]

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.

title: Preconnected origins

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

value: No additional origins are good candidates for preconnecting

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.

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.

	URL	Resource Size	Est Savings
America, Actually `div.fp8pvk1 > div._1agz5xb8 > div > img.mvmjsc0`	www.vox.com/static-assets/podcasts/america-actually.png	1.0 MiB	1.0 MiB
Explain It to Me `div.fp8pvk1 > div._1agz5xb8 > div > img.mvmjsc0`	www.vox.com/static-assets/podcasts/explain-it-to-me.png	103.3 KiB	102.4 KiB
Unexplainable `div.fp8pvk1 > div._1agz5xb8 > div > img.mvmjsc0`	www.vox.com/static-assets/podcasts/unexplainable2.jpeg	89.6 KiB	88.7 KiB
div#google_image_div > a#aw0 > amp-img.img_ad > img.i-amphtml-fill-content `div#google_image_div > a#aw0 > amp-img.img_ad > img.i-amphtml-fill-content`	tpc.googlesyndication.com/daca_images/simgad/1782369703661411386	110.3 KiB	82.7 KiB
What to do about burnout at work `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/Burnout.png?quality=9...	75.4 KiB	70.4 KiB
My partner and I don’t share many interests. Should we break up? `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-221927762...	66.1 KiB	62.2 KiB
The Gray Area `div.fp8pvk1 > div._1agz5xb8 > div > img.mvmjsc0`	www.vox.com/static-assets/podcasts/the-gray-area.png	46.7 KiB	45.8 KiB
8 ways to zone out and relax that don’t involve being on your phone `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-223820685...	39.2 KiB	35.7 KiB
Is it wrong to send your kid to private school? `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/03/Public-Schools.jpg?qu...	38.3 KiB	34.9 KiB
What trainers actually think about the 12-3-30 workout `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/gettyimages-226092996...	34.6 KiB	31.6 KiB
How to make unemployment suck a little less `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-142099938...	22.3 KiB	20.4 KiB
The case for AI realism `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/gettyimages-226807157...	19.8 KiB	18.0 KiB
How Americans really feel about immigration `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/gettyimages-218635846...	20.9 KiB	17.0 KiB
How to ask for help when you’re really going through it `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-75489153....	18.6 KiB	16.9 KiB
The simple question that could change your career `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/GettyImages-225125095...	16.5 KiB	15.0 KiB
Rubén Gallego on why he defended Eric Swalwell — and why he regrets it now `div.ox2lvn1 > div.duet--content-cards--content-card > div.hd0te97 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/04/gettyimages-224249349...	17.4 KiB	14.2 KiB
How Georgia manufactured the Peach State myth `div.lqawqb6 > div.duet--content-cards--content-card > div._1agz5xb7 > img.mvmjsc0`	/wp-content/uploads/sites/2/2026/03/Peaches_Thumbnail_05....	11.2 KiB	4.1 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: 242 ms

URL	Time Spent
vox.com/	242 ms
www.vox.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

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 ▾

Source: Google web.dev / Lighthouse

Estimated savings: 120 ms 868.7 KiB

URL	Transfer Size	Est Savings
www.vox.com/metrics/gtm.js?id=GTM-WQ5FM5W	696.8 KiB	223.3 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.8 KiB	177.0 KiB
www.vox.com/_next/static/chunks/pages/_app-3159785359f717d1.js	442.1 KiB	172.2 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31...	187.7 KiB	97.2 KiB
www.vox.com/metrics/gtd?id=AW-926030959&cx=c&gtm=4e64h1	143.0 KiB	73.8 KiB
c.amazon-adsystem.com/aax2/apstag.js	90.5 KiB	38.1 KiB
cdn.doubleverify.com/dv-measurements9761.js	93.9 KiB	36.6 KiB
cdn.ampproject.org/rtv/012603032146000/amp4ads-v0.mjs	54.9 KiB	30.2 KiB
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js	40.9 KiB	20.3 KiB

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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.vox.com/_next/static/chunks/pages/_app-3159785359f717d1.js	868 ms	734 ms	52 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31...	471 ms	404 ms	15 ms
cdn.ampproject.org/rtv/012603032146000/amp4ads-v0.mjs	359 ms	283 ms	5.2 ms
Unattributable	351 ms	31 ms	0.0 ms
www.vox.com/	248 ms	5.2 ms	0.1 ms
www.vox.com/_next/static/chunks/framework-8e0f3cf51af7b1e2.js	204 ms	187 ms	6.3 ms
www.vox.com/metrics/gtm.js?id=GTM-WQ5FM5W	97 ms	83 ms	13 ms
c.amazon-adsystem.com/aax2/apstag.js	81 ms	67 ms	8.4 ms
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js	73 ms	51 ms	9.9 ms
cdn.doubleverify.com/dv-measurements9761.js	73 ms	61 ms	12 ms
www.vox.com/metrics/gtd?id=AW-926030959&cx=c&gtm=4e64h1	60 ms	51 ms	8.1 ms
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	59 ms	37 ms	20 ms

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.

Category	Time Spent
Script Evaluation	2.3 s
Other	445 ms
Script Parsing & Compilation	185 ms
Style & Layout	184 ms
Rendering	85 ms
Garbage Collection	83 ms
Parse HTML & CSS	45 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 reason	Failure type
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not 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.

Estimated savings: 0.0 ms 15.0 KiB

URL	Transfer Size	Est Savings
www.vox.com/_next/static/css/05d88cec0dec7d53.css	27.4 KiB	15.0 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
www.vox.com/static-assets/podcasts/america-actually.png	1.0 MiB
www.vox.com/metrics/gtm.js?id=GTM-WQ5FM5W	697.7 KiB
www.vox.com/_next/static/chunks/pages/_app-3159785359f717d1.js	442.7 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	362.4 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.9 KiB
/wp-content/uploads/sites/2/2026/04/gettyimages-227166874...	200.1 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js?cb=31...	187.7 KiB
www.vox.com/metrics/gtd?id=AW-926030959&cx=c&gtm=4e64h1	143.7 KiB
tpc.googlesyndication.com/daca_images/simgad/1782369703661411386	110.9 KiB
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js	104.3 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.


Sponsor Logo `div._1yq350vc > div._1yq350v6 > div._1yq350vh > img._1yq350vg`

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

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 27 user timings

●Avoid long main-thread tasks 8 long tasks found

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 100 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 0 ms

○INP breakdown

○Avoid non-composited animations

○Avoid large layout shifts

100

Accessibility

○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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●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

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<frame>` or `<iframe>` elements have a title

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●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.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○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.

○`[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.

○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.

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.

Source	Description
www.vox.com/_next/static/chunks/pages/_app-3159785359f717d1.js line 171, col 29410	`ConcertAds: (73ms) loadMotifTargeting failed to fetch targeting from https://cdn.concert.io/lookup/`
www.vox.com/blaize/datalayer	`Failed to load resource: the server responded with a status of 401 ()`
cdn.concert.io/lookup/aHR0cHM6Ly93d3cudm94LmNvbS8=.json	`Failed to load resource: the server responded with a status of 404 ()`

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Map URL
www.vox.com/metrics/gtm.js?id=GTM-WQ5FM5W
www.vox.com/_next/static/chunks/pages/_app-3159785359f717d1.js
cdnjs.cloudflare.com/ajax/libs/blueimp-md5/2.19.0/js/md5.min.js	cdnjs.cloudflare.com/ajax/libs/blueimp-md5/2.19.0/js/md5.min.js.map
cdn.ampproject.org/rtv/012603032146000/v0/amp-form-0.1.mjs	cdn.ampproject.org/rtv/012603032146000/v0/amp-form-0.1.mjs.map
cdn.ampproject.org/rtv/012603032146000/v0/amp-fit-text-0.1.mjs	cdn.ampproject.org/rtv/012603032146000/v0/amp-fit-text-0.1.mjs.map
cdn.ampproject.org/rtv/012603032146000/v0/amp-analytics-0.1.mjs	cdn.ampproject.org/rtv/012603032146000/v0/amp-analytics-0.1.mjs.map
cdn.ampproject.org/rtv/012603032146000/v0/amp-ad-exit-0.1.mjs	cdn.ampproject.org/rtv/012603032146000/v0/amp-ad-exit-0.1.mjs.map
cdn.ampproject.org/rtv/012603032146000/amp4ads-v0.mjs	cdn.ampproject.org/rtv/012603032146000/amp4ads-v0.mjs.map
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js	cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js.map

●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 DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

SEO

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.

Link destination	Link Text
www.vox.com/even-better	MORE
www.vox.com/future-perfect	MORE
www.vox.com/explainers	MORE
www.vox.com/politics	MORE
www.vox.com/culture	MORE
www.vox.com/advice	MORE

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`

Results for https://vox.com

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Usability (1)

Navigation (2)

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