Skip to content
https://netflix.shop

Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
SCORE
0
GRADE
FIX
0
REVIEW
0
PASS
0
INFO
0

Detailed Report

Audit breakdown by category with detailed findings.

67

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

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
/reviewsWidget.min.js?shop=ntflx-en-us-main-001.myshopify...300.0 s86.7 KiB
static.ada.support/embed2.84129bb.js0.0 ms64.6 KiB
/shopify/static/customily.shopify.script.js?shop=ntflx-en...600.0 s48.0 KiB
/embed/x-storage/84129bb/sentry.a63f1776e32d39b6c2e8.js0.0 ms24.9 KiB
/embed/button/84129bb/sentry.a63f1776e32d39b6c2e8.js0.0 ms24.9 KiB
snowcommerce-netflix-gen.us2.ada.support/embed/button/84129bb/index.js0.0 ms21.0 KiB
d3hw6dc1ow8pp2.cloudfront.net/styles/main.min.css300.0 s19.1 KiB
snowcommerce-netflix-gen.us2.ada.support/embed/x-storage/84129bb/index.js0.0 ms18.1 KiB
api.fastbundle.co/scripts/cart.js?rgn=87402714400.0 s25.2 KiB
a.klaviyo.com/media/js/onsite/onsite.js86400.0 s33.2 KiB
static.ada.support/embed2.js0.0 ms8.2 KiB
/embed/button/84129bb/preact.196e0b6fbd52fd7d5136.js0.0 ms4.1 KiB
static.klaviyo.com/onsite/js/S2UC25/klaviyo.js?company_id=S2UC251.0 s2.7 KiB
script.crazyegg.com/pages/scripts/0037/5640.js300.0 s2.7 KiB
/cdn/shopifycloud/portable-wallets/latest/accelerated-che...300.0 s2.4 KiB
analytics.ahrefs.com/analytics.js14400.0 s3.0 KiB
/a/elevar/static/configs/9e35c06b750d63ebecab1fdd8d33574b...1.0 s1.8 KiB
/configs/9e35c06b750d63ebecab1fdd8d33574b72aa4fc7/config.js1.0 s1.6 KiB
/a/elevar/static/configs/9e35c06b750d63ebecab1fdd8d33574b...1.0 s1.0 KiB
shop.app/checkouts/internal/preloads.js?locale=en-ES&shop_id=5228222891160.0 s549 B
/01ae9d55-2394-4f99-bf23-498f81d4eb38/widget-style-custom...0.0 ms435 B
api.fastbundle.co/scripts/src.js?shop=ntflx-en-us-main-001.myshopify.com14400.0 s364 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:129.632 source:map[column:198978 line:1 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 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:323.833 source:map[type:text value:[unattributed]]] map[reflowTime:53.513 source:map[column:121241 line:0 type:source-location url:https://www.netflix.shop/cdn/wpm/b0e8c7c7aw41bd75a1p837d7fd4m8b145375m.js urlProvider:network]] map[reflowTime:11.722 source:map[column:195914 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:1.681 source:map[column:14922 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:0.194 source:map[column:143438 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:9.873 source:map[column:143500 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:2.93 source:map[column:143852 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:0.566 source:map[column:30694 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:1.329 source:map[column:192925 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:18.839 source:map[column:193100 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:12.602 source:map[column:193138 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:11.208 source:map[column:2485 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/tall-panel-component.chunk.325d6b0ee7b2f2991a94.min.js urlProvider:network]] map[reflowTime:129.632 source:map[column:195571 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:59.364 source:map[column:278587 line:0 type:source-location url:https://www.netflix.shop/cdn/shop/t/558/assets/app.min.js?v=127012901239467904281774362635 urlProvider:network]] map[reflowTime:44.737 source:map[column:2622 line:0 type:source-location url:https://static.klaviyo.com/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc073a286a0296d9f7/default~in_app_forms~signup_forms.a9953a1681e0d8106e3e.js?cb=2 urlProvider:network]] map[reflowTime:6.265 source:map[column:769 line:480 type:source-location url:https://static-tracking.klaviyo.com/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc073a286a0296d9f7/Render.f778b94f6021eec68929.js urlProvider:network]] map[reflowTime:56.37 source:map[column:348557 line:1 type:source-location url:https://cdn.shopify.com/extensions/019d6725-fee7-7c7f-a0d0-e4dbfff476c9/wiser-ai-upsell-cross-sell-1829/assets/wiser_2.0.js urlProvider:network]] map[reflowTime:2.836 source:map[column:354307 line:1 type:source-location url:https://cdn.shopify.com/extensions/019d6725-fee7-7c7f-a0d0-e4dbfff476c9/wiser-ai-upsell-cross-sell-1829/assets/wiser_2.0.js urlProvider:network]] map[reflowTime:2.24 source:map[column:348985 line:1 type:source-location url:https://cdn.shopify.com/extensions/019d6725-fee7-7c7f-a0d0-e4dbfff476c9/wiser-ai-upsell-cross-sell-1829/assets/wiser_2.0.js urlProvider:network]] map[reflowTime:9.79 source:map[column:391368 line:1 type:source-location url:https://cdn.shopify.com/extensions/019d6725-fee7-7c7f-a0d0-e4dbfff476c9/wiser-ai-upsell-cross-sell-1829/assets/wiser_2.0.js urlProvider:network]] map[reflowTime:6.852 source:map[column:1690 line:439 type:source-location url:https://static-tracking.klaviyo.com/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc073a286a0296d9f7/Render.f778b94f6021eec68929.js urlProvider:network]] map[reflowTime:7.678 source:map[column:1321 line:480 type:source-location url:https://static-tracking.klaviyo.com/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc073a286a0296d9f7/Render.f778b94f6021eec68929.js urlProvider:network]]]

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:325.8970009765625 label:Time to first byte subpart:timeToFirstByte] map[duration:1785.1299990234374 label:Resource load delay subpart:resourceLoadDelay] map[duration:47.034 label:Resource load duration subpart:resourceLoadDuration] map[duration:854.769 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: a > div.hero__inner > div.ir > img.lazyautosizes
path: 1,HTML,1,BODY,38,MAIN,2,DIV,0,DIV,0,A,0,DIV,1,DIV,0,IMG
selector: a > div.hero__inner > div.ir > img.lazyautosizes
snippet: <img alt="" class="lazyautosizes lazyloaded" data-widths="[180,360,540,720,900,1080,1296,1512,1728,1944,2160,2376,2592,2808,3024,384…" data-sizes="auto" data-srcset="//www.netflix.shop/cdn/shop/files/Property_1_One_Piece_3-22_2_180x.jpg?v=1…" sizes="1350px" srcset="//www.netflix.shop/cdn/shop/files/Property_1_One_Piece_3-22_2_180x.jpg?v=1…">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: a > div.hero__inner > div.ir > img.lazyautosizes
path: 1,HTML,1,BODY,38,MAIN,2,DIV,0,DIV,0,A,0,DIV,1,DIV,0,IMG
selector: a > div.hero__inner > div.ir > img.lazyautosizes
snippet: <img alt="" class="lazyautosizes lazyloaded" data-widths="[180,360,540,720,900,1080,1296,1512,1728,1944,2160,2376,2592,2808,3024,384…" data-sizes="auto" data-srcset="//www.netflix.shop/cdn/shop/files/Property_1_One_Piece_3-22_2_180x.jpg?v=1…" sizes="1350px" srcset="//www.netflix.shop/cdn/shop/files/Property_1_One_Piece_3-22_2_180x.jpg?v=1…">

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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Stranger Things form.needsclick > div.needsclick > div.needsclick > img.needsclick
/company/S2UC25/images/817213b9-b58d-4055-8e4f-c35ff96d48...992.8 KiB927.2 KiB
a > div.hero__inner > div.ir > img.lazyautosizes a > div.hero__inner > div.ir > img.lazyautosizes
www.netflix.shop/cdn/shop/files/One_Piece_3-22_desktop_1512x.jpg?v=1774362350116.6 KiB23.7 KiB
a > div.hero__inner > div.ir > img.lazyautosizes a > div.hero__inner > div.ir > img.lazyautosizes
/cdn/shop/files/Property_1_One_Piece_3-22_2_1512x.jpg?v=1...63.7 KiB12.9 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: 592 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 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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Style & Layout2.2 s
Script Evaluation1.8 s
Other1.2 s
Rendering712 ms
Script Parsing & Compilation181 ms
Parse HTML & CSS78 ms
Garbage Collection44 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in the main frame.Actionable

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 2.4 KiB
URLTransfer SizeEst Savings
/extensions/019d6725-fee7-7c7f-a0d0-e4dbfff476c9/wiser-ai...5.1 KiB2.4 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
a > div.hero__inner > div.ir > img.lazyautosizes a > div.hero__inner > div.ir > img.lazyautosizes
/cdn/shop/files/Property_1_One_Piece_3-22_2_1512x.jpg?v=1...
a > div.hero__inner > div.ir > img.lazyautosizes a > div.hero__inner > div.ir > img.lazyautosizes
www.netflix.shop/cdn/shop/files/One_Piece_3-22_desktop_1512x.jpg?v=1774362350
Funko Pop li.search__footer-item > a.search__footer-link > div.ir > img.lazyautosizes
/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb1...
Plushies li.search__footer-item > a.search__footer-link > div.ir > img.lazyautosizes
/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb1...
Tees li.search__footer-item > a.search__footer-link > div.ir > img.lazyautosizes
/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb1...
Squid Game li.search__footer-item > a.search__footer-link > div.ir > img.lazyautosizes
/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb1...
The Witcher li.search__footer-item > a.search__footer-link > div.ir > img.lazyautosizes
/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb1...
Stranger Things li.search__footer-item > a.search__footer-link > div.ir > img.lazyautosizes
/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb1...
One Piece Personalized Jersey Straw Hat Neighbors div.pi__img-wrapper > a > div.ir > img.pi__img
/cdn/shop/files/OP-S2-0326-AOPBTEE_101822_BK_MF_360x.jpg?...
One Piece Luffy Straw Hat with strap div.pi__img-wrapper > a > div.ir > img.pi__img
www.netflix.shop/cdn/shop/files/OP-LCSBH_22_MF2_360x.jpg?v=1773861502
One Piece Straw Hat Pirates Hockey Jersey div.pi__img-wrapper > a > div.ir > img.pi__img
www.netflix.shop/cdn/shop/files/OP-SHP_56_101784_MF1_360x.jpg?v=1742249012
One Piece Chopper Collectible Figure 1/6th Scale div.pi__img-wrapper > a > div.ir > img.pi__img
/cdn/shop/files/915398_silo_lg_e218c5f2-bced-454e-a8f0-8c...
One Piece Cosplay Hat Tony Tony Chopper div.pi__img-wrapper > a > div.ir > img.pi__img
www.netflix.shop/cdn/shop/files/NCA98Y1NET_1_360x.jpg?v=1773253011
One Piece x Kyle Lambert Comfort Colors T-Shirt Live Action Ensemble div.pi__img-wrapper > a > div.ir > img.pi__img
/cdn/shop/files/OP-KLHA-0426-KLKA_101699_BLACK_FT_MF_360x...
Flag ofES div.footer__country-picker-content-wrapper > div.footer__country-picker-flag-wrapper > div.ir > img.lazyloaded
cdn.shopify.com/static/images/flags/es.svg
Netflix Logo div.needsclick > div.needsclick > div.needsclick > img.needsclick
/company/S2UC25/images/c819f489-d83c-49a4-b9c7-76c9288ced...
Snow Commerce div.footer__sub > div.footer__sub-colophon > div.footer__snow-icon > img
/cdn/shop/files/Snow_Commerce_Logo_white.svg?v=2581392431...
Virgin River Welcome To Virgin River Enamel Mug div.pi__img-wrapper > a > div.ir > img.lazyload
Virgin River Jack's Bar Embroidered Dad Hat div.pi__img-wrapper > a > div.ir > img.lazyload
Virgin River Jack's Bar Two-tone Mug div.pi__img-wrapper > a > div.ir > img.lazyload
Virgin River Town of Virgin River Comfort Colors T-shirt div.pi__img-wrapper > a > div.ir > img.lazyload
Virgin River Crewneck Crest div.pi__img-wrapper > a > div.ir > img.lazyload
Virgin River Welcome Kitchen Towel div.pi__img-wrapper > a > div.ir > img.lazyload
a > div.hero__inner > div.ir > img.lazyload a > div.hero__inner > div.ir > img.lazyload
Stranger Things Hellfire Lives Ringer T-Shirt div.pi__img-wrapper > a > div.ir > img.lazyload
Stranger Things Beam Me Up This Place Sucks Sweatshirt Navy div.pi__img-wrapper > a > div.ir > img.lazyload
Stranger Things Hellfire Lives Kids T-Shirt div.pi__img-wrapper > a > div.ir > img.lazyload
Stranger Things WSQK Crewneck div.pi__img-wrapper > a > div.ir > img.lazyload
Stranger Things Dustin's Thinking Cap Trucker Hat div.pi__img-wrapper > a > div.ir > img.lazyload
Stranger Things WSQK "The Squawk" Sweatshirt Red div.pi__img-wrapper > a > div.ir > img.lazyload
a > div.hero__inner > div.ir > img.lazyload a > div.hero__inner > div.ir > img.lazyload
The Art of KPop Demon Hunters div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Huntrix Oversized Black Faded T-Shirt div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Huntr/x Youth T-Shirt Heather Dust div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Derpy Mug-4 div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Derpy Hoodie Gold div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Rumi Choo Choo Pajama Pants div.pi__img-wrapper > a > div.ir > img.lazyload
a.new-two-up__link > div.new-two-up__content > div.ir > img.lazyload a.new-two-up__link > div.new-two-up__content > div.ir > img.lazyload
a.new-two-up__link > div.new-two-up__content > div.ir > img.lazyload a.new-two-up__link > div.new-two-up__content > div.ir > img.lazyload
KPop Demon Hunters Huntrix Oversized Black Faded T-Shirt div.pi__img-wrapper > a > div.ir > img.lazyload
Netflix Shop Polin Bridgerton Unisex T-Shirt in Black div.pi__img-wrapper > a > div.ir > img.lazyload
Frankenstein Hoodie "Movie Poster" Black div.pi__img-wrapper > a > div.ir > img.lazyload
Stranger Things Exclusive Demogorgon On Fire Funko Pop! Premium Figure div.pi__img-wrapper > a > div.ir > img.lazyload
Stranger Things Dustin's Thinking Cap Trucker Hat div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Huntr/x Youth T-Shirt Heather Dust div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Derpy Hoodie Gold div.pi__img-wrapper > a > div.ir > img.lazyload
Bridgerton Kanthony Heartthrob T-Shirt div.pi__img-wrapper > a > div.ir > img.lazyload
Netflix Shop Love is Blind Goblets div.pi__img-wrapper > a > div.ir > img.lazyload
Netflix Shop Squid Game Player 456 Jacket div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Rumi Tie-Dye Kids T-Shirt div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Derpy Mug-4 div.pi__img-wrapper > a > div.ir > img.lazyload
One Piece x Kyle Lambert Comfort Colors T-Shirt Live Action Ensemble div.pi__img-wrapper > a > div.ir > img.lazyload
One Piece x Kyle Lambert Youth T-Shirt Live Action Ensemble div.pi__img-wrapper > a > div.ir > img.lazyload
One Piece x Kyle Lambert Youth Hoodie Live Action Ensemble div.pi__img-wrapper > a > div.ir > img.lazyload
One Piece x Kyle Lambert Youth Hoodie Live Action Ensemble div.pi__img-wrapper > a > div.ir > img.lazyload
One Piece x Kyle Lambert Sherpa Blanket Live Action Ensemble div.pi__img-wrapper > a > div.ir > img.lazyload
One Piece x Kyle Lambert Live Action Poster div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters HUNTR/X Can Shaped Glass With Lid Spring div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Toddler T-Shirt Rumi Spring div.pi__img-wrapper > a > div.ir > img.lazyload
KPop Demon Hunters Toddler T-Shirt Zoey Spring div.pi__img-wrapper > a > div.ir > img.lazyload

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

●Layout shift culprits
●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 13 user timings
●Avoid long main-thread tasks 11 long tasks found
●Network Requests
●Network Round Trip Times 180 ms
●Server Backend Latencies 270 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 3 layout shifts found
○INP breakdown
○Avoid non-composited animations
96

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

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

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
head > meta head > meta

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●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
●`[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
●Select elements have associated label elements.
●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
●`<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
●Uses ARIA roles only on compatible elements
●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 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
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Image elements do not have `[alt]` attributes that are redundant text.
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
81

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Unload event listeners are deprecated and will be removed.
Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md.
●Uses HTTPS
●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

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`

Send Feedback