C — https://speedtest.net | BeaverCheck Audit

Site Health

Score: 72 / 100

Based on 8 categories, 0 sections

Room to improve — your 20.0s 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 sites average 72

At average

Better than 29% of Amazon Route 53 sites See full Amazon Route 53 benchmark →

Backbone.js sites average 70

At average

Better than 71% of Backbone.js sites See full Backbone.js benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

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

Security › Security Headers

HSTS header is missing

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

Security › Security Headers

No Content-Security-Policy header found

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

Security › Content Security Policy

Page weighs 13.7 MB (4.2 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget

2 image-in-link without alt text

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

Accessibility › Alt Text Quality

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%2Fspeedtest.net)](https://beavercheck.com/results/0a882d7b-2072-47e1-949d-3459b80721ac)

HTML

<a href="https://beavercheck.com/results/0a882d7b-2072-47e1-949d-3459b80721ac"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fspeedtest.net" alt="BeaverCheck Score"></a>

Image URL

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

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 20.0s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. 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 20.0s — 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 6 warning

8 barrier(s) likely increasing bounce by ~31%.

Speed (2)

Page takes 20.0s to load

+12% bounce

Users abandon at ~3s — you're 17.5s over the 2.5s threshold

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

Page feels frozen for 4.2s

+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)

Layout shifts during page load

+3% bounce

Content movement causes mis-clicks on CTAs and form fields

Fix: Add width/height to images; reserve space for late-loading embeds

Content (1)

No structured data

+2% bounce

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

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

Navigation (2)

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

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

€425 investment → €0.98/month returns + EUR 120,500,000 risk avoided

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

Investment

€425

5h · 5 findings

Monthly returns

€0.98 /mo

~€12 / year

Bandwidth savings €0.98

Regulatory risk avoided

EUR 120,500,000

if kept compliant

ePrivacy Directive EUR 100,000,000
GDPR EUR 20,000,000
EAA EUR 500,000

€128 — 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

€425

5.0 developer hours at €85/hr

Based on European Union rates (€85/hr)

Quick wins

€128 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

€10,041,668 / month at risk

~€120,500,012 / year if left unfixed

Compliance Risk

€120,500,000

ePrivacy DirectiveGDPREAA

No privacy policy link detected
GDPR: EUR 10,000 – EUR 20,000,000
3 advertising/retargeting trackers detected
GDPR: EUR 10,000 – EUR 20,000,000
Trackers detected but no cookie policy found
GDPR: EUR 5,000 – EUR 10,000,000

+7 more

Bandwidth Waste

€0.98 /mo

13271.9 MB/mo × 0.074 EUR/GB

Optimize transfer: save ~1.3 MB per page load
Saves €0.98/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

100

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.

13.85 s

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

20.02 s

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

4.18 s

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

0.126

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

13.85 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.

27.76 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
b.cdnst.net/javascript/speedtest-main.js?v=740e4726565b535af6c9481d7ff91b6a	86400.0 s	1.5 MiB
cdn.ziffstatic.com/pg/speedtest.prebid.js	2074.0 s	232.1 KiB
www.speedtest.net/s/fonts/Montserrat-Italic-VariableFont_wght-hint-all.woff2	60.0 s	120.0 KiB
www.speedtest.net/s/fonts/Montserrat-VariableFont_wght-hint-all.woff2	60.0 s	116.1 KiB
openads-cdn.adsrvr.org/openadsjs/build/v1.0/ziffdavis/openads.js	0.0 ms	89.9 KiB
cdn.static.zdbb.net/eu/js/z0WVjCBSEeGLoxIxOQVEwQ.min.js	86400.0 s	175.1 KiB
client.aps.amazon-adsystem.com/publisher.js	3600.0 s	82.5 KiB
www.speedtest.net/images/app-promo-image@2x.png	86400.0 s	148.4 KiB
b.cdnst.net/images/app-promo-image@2x.png	86400.0 s	148.3 KiB
www.speedtest.net/images/android-app-promo-2x.png	86400.0 s	92.0 KiB
b.cdnst.net/images/gauge-gradient-dl-multi-web.png	86400.0 s	76.8 KiB
b.cdnst.net/images/gauge-gradient-ul-multi-web.png	86400.0 s	72.7 KiB
www.speedtest.net/s/fonts/Montserrat-VariableFont_wght-kern-latin.woff2	60.0 s	28.6 KiB
cdn.ziffstatic.com/pg/speedtest.js	2605.0 s	33.5 KiB
b.cdnst.net/images/gauge-gradient-ul-single-web.png	86400.0 s	63.9 KiB
cdn.ziffstatic.com/jst/zdconsent_eu.js	629.0 s	27.8 KiB
b.cdnst.net/images/gauge-gradient-dl-single-web.png	86400.0 s	61.0 KiB
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	534479.0 s	126.2 KiB
b.cdnst.net/styles/main.c94cd88435f3e907a9963e080e58198b.css	86400.0 s	29.1 KiB
appleid.cdn-apple.com/appleauth/static/jsapi/appleid/1/en_US/appleid.auth.js	86400.0 s	17.4 KiB
b.cdnst.net/images/icg_how_much_speed.png	86400.0 s	10.7 KiB
www.speedtest.net/s/fonts/gaugemono-regular-webfont.woff2	60.0 s	4.3 KiB
sb.scorecardresearch.com/beacon.js	86400.0 s	6.7 KiB
cdn.ziffstatic.com/jst/otTCF.202512.1.0.js	534480.0 s	17.7 KiB
config.aps.amazon-adsystem.com/configs/3336	3600.0 s	2.1 KiB
b.cdnst.net/images/icg_desktop_apps.svg	86400.0 s	3.3 KiB
b.cdnst.net/images/mobile-badges/google-play-EN.svg	86400.0 s	2.6 KiB
cdn.ziffstatic.com/pg/speedtest.css	2600.0 s	1.2 KiB
b.cdnst.net/images/mobile_apps.svg	86400.0 s	2.2 KiB
b.cdnst.net/images/icg_talk_to_isp.svg	86400.0 s	1.9 KiB
b.cdnst.net/images/icg_check_outages.svg	86400.0 s	1.8 KiB
b.cdnst.net/images/icg_troubleshoot_wifi.svg	86400.0 s	1.3 KiB
b.cdnst.net/images/icg_get_help.svg	86400.0 s	1.1 KiB
b.cdnst.net/images/icg_qr_code.svg	86400.0 s	1.0 KiB
www.speedtest.net/images/scroll_for_more.svg	86400.0 s	671 B
cdn.ziffstatic.com/ajs?zoneid=a	3600.0 s	298 B
b.cdnst.net/javascript/ads/ad.js	86400.0 s	237 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]

items: [map[node:map[type:text value:Total] score:0.126284] map[node:map[boundingRect:map[bottom:2329 height:782 left:0 right:412 top:1547 width:412] lhId:page-1-FOOTER nodeLabel:SPEEDTEST® Advertise Speedtest Awards™ Speedtest Servers™ Speedtest Performance… path:1,HTML,1,BODY,5,DIV,5,FOOTER selector:body.layout-mobile > div > footer.footer snippet:<footer class="footer" role="contentinfo"> type:node] score:0.121507] map[node:map[boundingRect:map[bottom:870 height:126 left:224 right:380 top:744 width:157] lhId:page-2-IMG nodeLabel:Wi-Fi troubleshooting path:1,HTML,1,BODY,5,DIV,3,DIV,0,DIV,0,DIV,1,DIV,0,DIV,1,DIV,1,DIV,0,A,0,DIV,0,IMG selector:div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon snippet:<img src="//b.cdnst.net/images/icg_troubleshoot_wifi.svg" alt="Wi-Fi troubleshooting" class="homepage-lower-icon"> type:node] score:0.004777 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:689 height:25 left:355 right:371 top:664 width:16] lhId:page-5-IMG nodeLabel:Arrow down image path:1,HTML,1,BODY,5,DIV,1,DIV,2,DIV,0,DIV,2,DIV,0,DIV,2,DIV,2,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,1,A,0,IMG selector:div.ispComponent > div.connection-mobile > a.connection-mobile-scroll > img snippet:<img src="/images/scroll_for_more.svg" alt="Arrow down image"> type:node]]] type:subitems]]]

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
www.speedtest.net/s/fonts/Montserrat-VariableFont_wght-hint-all.woff2	60 ms
www.speedtest.net/s/fonts/Montserrat-Italic-VariableFont_wght-hint-all.woff2	55 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:237.397 label:Time to first byte subpart:timeToFirstByte] map[duration:2362.696 label:Element render delay subpart:elementRenderDelay]]

lhId: page-0-DIV

nodeLabel: We and our 998 partners store and access personal data, like browsing data or u…

path: 1,HTML,1,BODY,13,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,3,DIV

selector: div.ot-sdk-row > div#onetrust-group-container > div#onetrust-policy > div#onetrust-policy-text

snippet: <div id="onetrust-policy-text">

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

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.

URL	Transfer Size	Duration
www.googleoptimize.com/optimize.js?id=GTM-MPW4L3J	111.8 KiB	3.0 s
b.cdnst.net/javascript/ads/ad.js	237 B
b.cdnst.net/styles/main.c94cd88435f3e907a9963e080e58198b.css	29.1 KiB	1.2 s

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
div.mobile-banner-container > a.webstore-app-links > div.download-images > img#banner-image `div.mobile-banner-container > a.webstore-app-links > div.download-images > img#banner-image`	b.cdnst.net/images/app-promo-image@2x.png	148.1 KiB	123.5 KiB
Speed requirement `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_how_much_speed.png	10.6 KiB	7.0 KiB

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: 800 ms

URL	Time Spent
speedtest.net/	800 ms
www.speedtest.net/	0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
SPEEDTEST® Advertise Speedtest Awards™ Speedtest Servers™ Speedtest Performance… `body.layout-mobile > div > footer.footer`	0.122
Wi-Fi troubleshooting `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	0.005

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: 150 ms 26.3 KiB

URL	Transfer Size	Est Savings
b.cdnst.net/styles/main.c94cd88435f3e907a9963e080e58198b.css	28.9 KiB	26.3 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: 7.2 s 1.7 MiB

URL	Transfer Size	Est Savings
b.cdnst.net/javascript/speedtest-main.js?v=740e4726565b535af6c9481d7ff91b6a	1.5 MiB	928.1 KiB
cdn.ziffstatic.com/pg/speedtest.prebid.js	231.9 KiB	187.6 KiB
/pagead/managed/js/gpt/m202604130101/pubads_impl.js	187.5 KiB	131.1 KiB
accounts.google.com/gsi/client?hl=en	95.3 KiB	79.5 KiB
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	126.2 KiB	71.9 KiB
www.googletagmanager.com/gtag/destination?id=G-KKLSRK6J1Z&cx=c&gtm=4e64f0	168.6 KiB	66.8 KiB
www.googleoptimize.com/optimize.js?id=GTM-MPW4L3J	111.5 KiB	65.3 KiB
openads-cdn.adsrvr.org/openadsjs/build/v1.0/ziffdavis/openads.js	89.5 KiB	61.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-K7SNBZ	138.7 KiB	58.4 KiB
client.aps.amazon-adsystem.com/publisher.js	82.1 KiB	49.0 KiB
cdn.static.zdbb.net/js/z0WVjCBSEeGLoxIxOQVEwQ.min.js	174.7 KiB	41.9 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
b.cdnst.net/javascript/speedtest-main.js?v=740e4726565b535af6c9481d7ff91b6a	6.1 s	4.5 s	1.1 s
Unattributable	2.6 s	1.5 s	0.0 ms
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	742 ms	550 ms	106 ms
client.aps.amazon-adsystem.com/publisher.js	620 ms	459 ms	65 ms
www.googletagmanager.com/gtag/destination?id=G-KKLSRK6J1Z&cx=c&gtm=4e64f0	539 ms	431 ms	103 ms
www.googletagmanager.com/gtm.js?id=GTM-K7SNBZ	535 ms	400 ms	115 ms
/pagead/managed/js/gpt/m202604130101/pubads_impl.js	489 ms	348 ms	135 ms
www.speedtest.net/	391 ms	29 ms	13 ms
cdn.ziffstatic.com/pg/speedtest.prebid.js	344 ms	193 ms	134 ms
securepubads.g.doubleclick.net/tag/js/gpt.js	313 ms	169 ms	26 ms
openads-cdn.adsrvr.org/openadsjs/build/v1.0/ziffdavis/openads.js	309 ms	249 ms	55 ms
cdn.ziffstatic.com/jst/zdconsent.js	262 ms	220 ms	22 ms
www.googleoptimize.com/optimize.js?id=GTM-MPW4L3J	239 ms	166 ms	60 ms
cdn.static.zdbb.net/js/z0WVjCBSEeGLoxIxOQVEwQ.min.js	215 ms	127 ms	26 ms
cdn.ziffstatic.com/pg/speedtest.js	198 ms	152 ms	20 ms
accounts.google.com/gsi/client?hl=en	93 ms	44 ms	48 ms
cdn.ziffstatic.com/jst/otTCF.202512.1.0.js	56 ms	43 ms	10 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	9.6 s
Script Parsing & Compilation	2.1 s
Other	1.6 s
Style & Layout	306 ms
Garbage Collection	285 ms
Parse HTML & CSS	146 ms
Rendering	72 ms

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
b.cdnst.net/javascript/speedtest-main.js?v=740e4726565b535af6c9481d7ff91b6a	1.5 MiB
cdn.ziffstatic.com/pg/speedtest.prebid.js	232.1 KiB
/pagead/managed/js/gpt/m202604130101/pubads_impl.js	187.6 KiB
cdn.static.zdbb.net/eu/js/z0WVjCBSEeGLoxIxOQVEwQ.min.js	175.1 KiB
www.googletagmanager.com/gtag/destination?id=G-KKLSRK6J1Z&cx=c&gtm=4e64f0	169.0 KiB
www.speedtest.net/images/app-promo-image@2x.png	148.4 KiB
b.cdnst.net/images/app-promo-image@2x.png	148.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-K7SNBZ	139.1 KiB
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	126.2 KiB
www.speedtest.net/s/fonts/Montserrat-Italic-VariableFont_wght-hint-all.woff2	120.0 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
div.mobile-banner-container > a.webstore-app-links > div.download-images > img#banner-image `div.mobile-banner-container > a.webstore-app-links > div.download-images > img#banner-image`	b.cdnst.net/images/app-promo-image@2x.png
Speed requirement `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_how_much_speed.png
Mobile Apps `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/mobile_apps.svg
Wi-Fi troubleshooting `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_troubleshoot_wifi.svg
Check outages `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_check_outages.svg
Help `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_get_help.svg
Talk to ISP `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_talk_to_isp.svg
Get it on Google Play `a.webstore-app-links > div.download-images > span > img`	b.cdnst.net/images/mobile-badges/google-play-EN.svg
Arrow down image `div.ispComponent > div.connection-mobile > a.connection-mobile-scroll > img`	www.speedtest.net/images/scroll_for_more.svg

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

●Optimize DOM size

●Forced reflow

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 13 user timings

●Avoid long main-thread tasks 20 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 180 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 210 ms

○INP breakdown

○LCP request discovery

○Avoid non-composited animations

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
Speedtest is better with the app. Download the Speedtest app for more metrics, … `div.main-view > div > div.mobile-pretest > div.mobile-pretest-new`

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

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 > div.mobile-pretest > div.mobile-pretest-new > a.close-btn `div > div.mobile-pretest > div.mobile-pretest-new > a.close-btn`

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.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Speedtest `div.nav > div.pure-g > div.pure-u-1 > a.masthead-logo`
GO `div.pure-u-1 > div.mobile-start-wrapper > div.start-button > a.js-start-test`

These are opportunities to improve keyboard navigation in your application.

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
Android `div.apps > ul.menu-footer > li > a`
Apple TV `div.apps > ul.menu-footer > li > a`
macOS `div.apps > ul.menu-footer > li > a`
Windows `div.apps > ul.menu-footer > li > a`

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
GO `div.pure-u-1 > div.mobile-start-wrapper > div.start-button > a.js-start-test`
Our Privacy 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

●`[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

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

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

●Links are distinguishable without relying on color.

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

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

○`[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

○Form elements have associated labels

○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

○Identical links have the same purpose.

○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
b.cdnst.net/javascript/speedtest-main.js?v=740e4726565b535af6c9481d7ff91b6a line 1, col 6624301	`Uncaught Error: Minified React error #200; visit https://reactjs.org/docs/error-decoder.html?invariant=200 for the full message or use the non-minified dev environment for full errors and additional helpful warnings.`

●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

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

100

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.

○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

●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

Accessibility

100

Best Practices

100

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.

1.29 s

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

4.18 s

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

1.45 s

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

0.010

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

2.22 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.

5.57 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
b.cdnst.net/javascript/speedtest-main.js?v=740e4726565b535af6c9481d7ff91b6a	86400.0 s	1.5 MiB
cdn.ziffstatic.com/pg/speedtest.prebid.js	2050.0 s	232.1 KiB
www.speedtest.net/s/fonts/Montserrat-Italic-VariableFont_wght-hint-all.woff2	60.0 s	120.0 KiB
www.speedtest.net/s/fonts/Montserrat-VariableFont_wght-hint-all.woff2	60.0 s	116.1 KiB
openads-cdn.adsrvr.org/openadsjs/build/v1.0/ziffdavis/openads.js	0.0 ms	89.9 KiB
cdn.static.zdbb.net/eu/js/z0WVjCBSEeGLoxIxOQVEwQ.min.js	86400.0 s	175.1 KiB
client.aps.amazon-adsystem.com/publisher.js	3600.0 s	82.5 KiB
b.cdnst.net/images/gauge-gradient-dl-multi-web.png	86400.0 s	76.8 KiB
b.cdnst.net/images/gauge-gradient-ul-multi-web.png	86400.0 s	72.7 KiB
www.speedtest.net/s/fonts/Montserrat-VariableFont_wght-kern-latin.woff2	60.0 s	28.5 KiB
cdn.ziffstatic.com/pg/speedtest.js	2581.0 s	33.5 KiB
b.cdnst.net/images/gauge-gradient-ul-single-web.png	86400.0 s	63.9 KiB
cdn.ziffstatic.com/jst/zdconsent_eu.js	605.0 s	27.8 KiB
b.cdnst.net/images/gauge-gradient-dl-single-web.png	86400.0 s	61.0 KiB
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	534454.0 s	126.2 KiB
b.cdnst.net/styles/main.c94cd88435f3e907a9963e080e58198b.css	86400.0 s	29.1 KiB
www.speedtest.net/images/android-app-promo-1x.png	86400.0 s	29.0 KiB
appleid.cdn-apple.com/appleauth/static/jsapi/appleid/1/en_US/appleid.auth.js	86400.0 s	17.4 KiB
www.speedtest.net/s/fonts/gaugemono-regular-webfont.woff2	60.0 s	4.3 KiB
b.cdnst.net/images/icg_how_much_speed.png	86400.0 s	10.7 KiB
b.cdnst.net/images/ad-free-125x101-fade-anim-1x.gif	86400.0 s	9.7 KiB
sb.scorecardresearch.com/beacon.js	86400.0 s	6.7 KiB
cdn.ziffstatic.com/jst/otTCF.202512.1.0.js	534455.0 s	17.7 KiB
www.speedtest.net/images/Download_on_the_Mac_App_Store_Badge_US-UK_165x40.svg	86400.0 s	5.1 KiB
config.aps.amazon-adsystem.com/configs/3336	3600.0 s	2.1 KiB
b.cdnst.net/images/icg_desktop_apps.svg	86400.0 s	3.3 KiB
b.cdnst.net/images/dd-logo.svg	86400.0 s	2.5 KiB
cdn.ziffstatic.com/pg/speedtest.css	2576.0 s	1.2 KiB
b.cdnst.net/images/mobile_apps.svg	86400.0 s	2.2 KiB
b.cdnst.net/images/icg_talk_to_isp.svg	86400.0 s	1.9 KiB
b.cdnst.net/images/icg_check_outages.svg	86400.0 s	1.8 KiB
b.cdnst.net/images/icg_troubleshoot_wifi.svg	86400.0 s	1.3 KiB
b.cdnst.net/images/icg_get_help.svg	86400.0 s	1.1 KiB
b.cdnst.net/images/icg_qr_code.svg	86400.0 s	1.0 KiB
cdn.ziffstatic.com/ajs?zoneid=a	3600.0 s	298 B
b.cdnst.net/javascript/ads/ad.js	86400.0 s	237 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
www.speedtest.net/s/fonts/Montserrat-VariableFont_wght-hint-all.woff2	65 ms
www.speedtest.net/s/fonts/Montserrat-Italic-VariableFont_wght-hint-all.woff2	55 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:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:13.015 source:map[column:224 line:158 type:source-location url:https://cdn.ziffstatic.com/pg/speedtest.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:13.015 source:map[column:85 line:152 type:source-location url:https://cdn.ziffstatic.com/pg/speedtest.js urlProvider:network]] map[reflowTime:19.835 source:map[type:text value:[unattributed]]] map[reflowTime:1.211 source:map[column:132 line:76 type:source-location url:https://cdn.ziffstatic.com/pg/speedtest.js urlProvider:network]] map[reflowTime:0.519 source:map[column:447 line:107 type:source-location url:https://cdn.ziffstatic.com/jst/zdconsent.js urlProvider:network]]]

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

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.

URL	Transfer Size	Duration
b.cdnst.net/javascript/ads/ad.js	237 B
b.cdnst.net/styles/main.c94cd88435f3e907a9963e080e58198b.css	29.1 KiB	258 ms

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
Speed requirement `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_how_much_speed.png	10.6 KiB	9.0 KiB

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

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: 203 ms

URL	Time Spent
speedtest.net/	203 ms
www.speedtest.net/	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 ▾

Source: Google web.dev / Lighthouse

Estimated savings: 1.1 s 1.6 MiB

URL	Transfer Size	Est Savings
b.cdnst.net/javascript/speedtest-main.js?v=740e4726565b535af6c9481d7ff91b6a	1.5 MiB	920.4 KiB
cdn.ziffstatic.com/pg/speedtest.prebid.js	199.9 KiB	161.6 KiB
/pagead/managed/js/gpt/m202604130101/pubads_impl.js	187.5 KiB	129.4 KiB
accounts.google.com/gsi/client?hl=en	95.3 KiB	79.5 KiB
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	126.2 KiB	71.9 KiB
www.googletagmanager.com/gtag/destination?id=G-KKLSRK6J1Z&cx=c&gtm=4e64f0	168.6 KiB	66.4 KiB
openads-cdn.adsrvr.org/openadsjs/build/v1.0/ziffdavis/openads.js	89.5 KiB	61.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-K7SNBZ	138.7 KiB	56.9 KiB
client.aps.amazon-adsystem.com/publisher.js	82.1 KiB	49.0 KiB
cdn.static.zdbb.net/js/z0WVjCBSEeGLoxIxOQVEwQ.min.js	174.7 KiB	41.9 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
b.cdnst.net/javascript/speedtest-main.js?v=740e4726565b535af6c9481d7ff91b6a	1.4 s	1.0 s	279 ms
Unattributable	338 ms	27 ms	0.0 ms
cdn.ziffstatic.com/jst/otTCF.202512.1.0.js	309 ms	285 ms	2.7 ms
www.googletagmanager.com/gtag/destination?id=G-KKLSRK6J1Z&cx=c&gtm=4e64f0	143 ms	117 ms	24 ms
www.googletagmanager.com/gtm.js?id=GTM-K7SNBZ	142 ms	115 ms	24 ms
/pagead/managed/js/gpt/m202604130101/pubads_impl.js	142 ms	111 ms	24 ms
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	141 ms	105 ms	22 ms
www.speedtest.net/	103 ms	11 ms	4.2 ms
cdn.ziffstatic.com/pg/speedtest.prebid.js	94 ms	60 ms	33 ms
client.aps.amazon-adsystem.com/publisher.js	93 ms	77 ms	14 ms
cdn.ziffstatic.com/jst/zdconsent.js	87 ms	75 ms	4.6 ms
cdn.ziffstatic.com/pg/speedtest.js	73 ms	38 ms	11 ms
openads-cdn.adsrvr.org/openadsjs/build/v1.0/ziffdavis/openads.js	71 ms	50 ms	21 ms
cdn.static.zdbb.net/js/z0WVjCBSEeGLoxIxOQVEwQ.min.js	61 ms	37 ms	7.8 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	2.2 s
Script Parsing & Compilation	496 ms
Other	385 ms
Style & Layout	89 ms
Garbage Collection	81 ms
Parse HTML & CSS	63 ms
Rendering	24 ms

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
b.cdnst.net/javascript/speedtest-main.js?v=740e4726565b535af6c9481d7ff91b6a	1.5 MiB
cdn.ziffstatic.com/pg/speedtest.prebid.js	232.1 KiB
/pagead/managed/js/gpt/m202604130101/pubads_impl.js	187.6 KiB
cdn.static.zdbb.net/eu/js/z0WVjCBSEeGLoxIxOQVEwQ.min.js	175.1 KiB
www.googletagmanager.com/gtag/destination?id=G-KKLSRK6J1Z&cx=c&gtm=4e64f0	169.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-K7SNBZ	139.1 KiB
cdn.ziffstatic.com/jst/otBannerSdk.202512.1.0.js	126.2 KiB
www.speedtest.net/s/fonts/Montserrat-Italic-VariableFont_wght-hint-all.woff2	120.0 KiB
www.speedtest.net/s/fonts/Montserrat-VariableFont_wght-hint-all.woff2	116.1 KiB
accounts.google.com/gsi/client?hl=en	96.0 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
Speed requirement `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_how_much_speed.png
Desktop apps `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_desktop_apps.svg
QR code for downloading mobile app `div.pure-u-1-3 > div.qr-and-text > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_qr_code.svg
Wi-Fi troubleshooting `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_troubleshoot_wifi.svg
Check outages `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_check_outages.svg
Talk to ISP `div.pure-u-1-3 > a > div.homepage-lower-btn > img.homepage-lower-icon`	b.cdnst.net/images/icg_talk_to_isp.svg

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

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Reduce unused CSS

●User Timing marks and measures 13 user timings

●Avoid long main-thread tasks 12 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 250 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 2 layout shifts found

○INP breakdown

○LCP request discovery

○Avoid non-composited animations

Accessibility

Navigation

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Speedtest `div.nav > div.pure-g > div.pure-u-1 > a.masthead-logo`
GO `div.speedtest-view > div.speedtest-container > div.start-button > a.js-start-test`
Multi `div > div.test-modes-wrapper > div.toggle > a.test-mode`
Single `div > div.test-modes-wrapper > div.toggle > a.test-mode`

These are opportunities to improve keyboard navigation in your application.

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
GO `div.speedtest-view > div.speedtest-container > div.start-button > a.js-start-test`
Our Privacy 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

●`[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

●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

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

○`[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

○Form elements have associated labels

○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

○Identical links have the same purpose.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

100

Best Practices

●Uses HTTPS

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

100

SEO

○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

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

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Site Health

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Top Priorities (5)

Fix Priority Matrix

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What fixing these means

Conversion Barriers

Speed (2)

Trust (2)

Usability (1)

Content (1)

Navigation (2)

Return on Investment

Investment

Monthly returns

Regulatory risk avoided

Estimated Remediation Cost

Cost by category

Cost by effort level

What Inaction Is Costing You

Compliance Risk

Bandwidth Waste

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

ARIA

Names and labels

Navigation

Best practices

Best Practices

General

SEO

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

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