Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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

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.

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:0.000465] map[node:map[boundingRect:map[bottom:916 height:166 left:24 right:1326 top:750 width:1302] lhId:page-1-DIV nodeLabel:Privacy settings We use cookies to improve site experience, advertising, and ot… path:1,HTML,1,BODY,1,DIV,2,DIV selector:body.ab-pause-scrolling > div#consent_blackbar > div#truste-consent-track snippet:<div id="truste-consent-track" style="display:block;" class="ta-show ta-display-block"> type:node] score:0.000444 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:795 height:21 left:368 right:384 top:774 width:16] lhId:page-45-IMG nodeLabel:mercari-lock-icon path:1,HTML,1,BODY,1,DIV,2,DIV,0,DIV,0,DIV,1,DIV,0,IMG selector:div#truste-consent-content > div#truste-banner-header > div#truste-consent-icon > img snippet:<img src="//consent.trustarc.com/get?name=mercari-lock-icon-dark-gray.svg" alt="mercari-lock-icon"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:892 height:32 left:915 right:1105 top:860 width:190] lhId:page-2-DIV nodeLabel:Customize Got it path:1,HTML,1,BODY,1,DIV,2,DIV,0,DIV,2,DIV selector:div#consent_blackbar > div#truste-consent-track > div#truste-consent-content > div#truste-consent-buttons snippet:<div id="truste-consent-buttons" class="truste-buttonsColumn"> type:node] score:2.1e-05 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:795 height:21 left:368 right:384 top:774 width:16] lhId:page-45-IMG nodeLabel:mercari-lock-icon path:1,HTML,1,BODY,1,DIV,2,DIV,0,DIV,0,DIV,1,DIV,0,IMG selector:div#truste-consent-content > div#truste-banner-header > div#truste-consent-icon > img snippet:<img src="//consent.trustarc.com/get?name=mercari-lock-icon-dark-gray.svg" alt="mercari-lock-icon"> type:node]]] type:subitems]]]

items: [map[node:map[type:text value:Total] score:0.282654] map[node:map[boundingRect:map[bottom:5427 height:400 left:0 right:1350 top:5027 width:1350] lhId:page-4-DIV nodeLabel:Get the app. Sell or buy. Almost anything. path:1,HTML,1,BODY,5,DIV,1,DIV,6,DIV selector:body.ab-pause-scrolling > div#__next > div > div#getTheAppFooter snippet:<div id="getTheAppFooter" data-testid="GetTheApp" class="Container-sc-beaovl GetTheAppBanner__Wrapper-sc-69d5a855-0 caxKGN hEieq"> type:node] score:0.187234] map[node:map[boundingRect:map[bottom:5427 height:400 left:0 right:1350 top:5027 width:1350] lhId:page-4-DIV nodeLabel:Get the app. Sell or buy. Almost anything. path:1,HTML,1,BODY,5,DIV,1,DIV,6,DIV selector:body.ab-pause-scrolling > div#__next > div > div#getTheAppFooter snippet:<div id="getTheAppFooter" data-testid="GetTheApp" class="Container-sc-beaovl GetTheAppBanner__Wrapper-sc-69d5a855-0 caxKGN hEieq"> type:node] score:0.09542]]

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.

URL	Est Savings
u-web-assets.mercdn.net/assets/fonts/averta/averta-bold-webfont.woff2	30 ms
consent.trustarc.com/get?name=averta-semibold.woff	20 ms
consent.trustarc.com/get?name=averta-regular.woff	20 ms
u-web-assets.mercdn.net/assets/fonts/averta/averta-semibold-webfont.woff2	20 ms
/appboy/communication/assets/font_assets/files/640b79dd13...	20 ms
/appboy/communication/assets/font_assets/files/62d01145ac...	15 ms
u-web-assets.mercdn.net/assets/fonts/averta/averta-regular-webfont.woff2	10 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	5.0 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:36.711 source:map[column:177605 line:1 type:source-location url:https://u-web-assets.mercdn.net/builds/r-v1.26.1585/_next/static/chunks/framework-410df72d408e49c5.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:48.191 source:map[type:text value:[unattributed]]] map[reflowTime:1.906 source:map[column:23921 line:0 type:source-location url:https://consent.trustarc.com/notice?domain=mercari.com&c=teconsent&js=nj&noticeType=bb&text=true urlProvider:network]] map[reflowTime:6.765 source:map[column:16205 line:1307 type:source-location url:https://u-web-assets.mercdn.net/builds/r-v1.26.1585/_next/static/chunks/pages/_app-951ae3cec2930a6d.js urlProvider:network]] map[reflowTime:57.784 source:map[column:10591 line:0 type:source-location url:https://u-web-assets.mercdn.net/builds/r-v1.26.1585/_next/static/chunks/11674-0b0c8e8a689e7377.js urlProvider:network]] map[reflowTime:2.2 source:map[column:376 line:895 type:source-location url:https://www.mercari.com/ko40/?id=G-DJ5N7E6D07&cx=c&gtm=4e64k1 urlProvider:network]]]

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: Live now! April 22 - April 24 flash sale event! Coupon for 10% off item price(s…

path: 1,HTML,1,BODY,5,DIV,1,DIV,3,DIV,0,DIV,0,A,0,IMG

selector: div.Container-sc-beaovl > div.Banner__AnonWrapper-sc-c8222229-0 > a.Link__StyledAnchor-sc-3b50994f-0 > img.CDNImage__StyledNextImage-sc-2e57b269-0

snippet: <img alt="Live now! April 22 - April 24 flash sale event! Coupon for 10% off item pr…" loading="lazy" width="2880" height="684" decoding="async" data-nimg="1" class="CDNImage__StyledNextImage-sc-2e57b269-0 jyHTcX AnonBanner__StyledImage-sc-…" srcset="https://u-web-assets.mercdn.net/assets/banner/anon-banner-april-flash-desk…" src="https://u-web-assets.mercdn.net/assets/banner/anon-banner-april-flash-desk…" style="color: transparent;">

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

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
/appboy/communication/assets/image_assets/images/69dd83e2...	14400.0 s	1.6 MiB
cdn.quadpay.com/v1/quadpay.js	3600.0 s	202.0 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
/appboy/communication/assets/font_assets/files/640b79dd13...	14400.0 s	92.5 KiB
/signals/config/332253387150322?v=2.9.303&r=stable&domain...	1200.0 s	44.9 KiB
/appboy/communication/assets/font_assets/files/62d01145ac...	14400.0 s	34.3 KiB
u-web-assets.mercdn.net/sdk/adyen/adyen.encrypt.nodom.min.js	3600.0 s	17.2 KiB
/notice?domain=mercari.com&c=teconsent&js=nj&noticeType=b...	3600.0 s	13.4 KiB
www.mercari.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?	14400.0 s	12.1 KiB
/assets/img/banners/section_header_hellogoodbye.png?heigh...	3600.0 s	9.0 KiB
appleid.cdn-apple.com/appleauth/static/jsapi/appleid/1/en_US/appleid.auth.js	86400.0 s	17.4 KiB
consent.trustarc.com/autoblockasset/core.min.js?domain=mercari.com	3600.0 s	6.6 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...	86400.0 s	10.7 KiB
consent.trustarc.com/autoblockoptout?domain=mercari.com	3600.0 s	2.0 KiB
use.fontawesome.com/7f85a56ba4.css	1800.0 s	866 B
www.gstatic.com/recaptcha/api2/logo_48.png	604800.0 s	2.3 KiB
/tr/?id=332253387150322&ev=PageView&dl=https%3A%2F%2Fwww....	0.0 ms	19 B

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.bz-sctn > div#i6jwb > div#ijviu > img#iq5gr `div.bz-sctn > div#i6jwb > div#ijviu > img#iq5gr`	/appboy/communication/assets/image_assets/images/69dd83e2...	1.6 MiB	1.6 MiB
downloadtheapp `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/downloadtheapp.png	143.6 KiB	126.3 KiB
athleticapparel `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/athleticapparel.png	139.9 KiB	123.1 KiB
tradingcards `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/tradingcards.png	135.0 KiB	118.8 KiB
Live now! April 22 - April 24 flash sale event! Coupon for 10% off item price(s… `div.Container-sc-beaovl > div.Banner__AnonWrapper-sc-c8222229-0 > a.Link__StyledAnchor-sc-3b50994f-0 > img.CDNImage__StyledNextImage-sc-2e57b269-0`	/assets/banner/anon-banner-april-flash-desktop.png?width=...	131.6 KiB	98.7 KiB
women `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/women.png	109.3 KiB	95.5 KiB
kids `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/kids.png	105.7 KiB	92.4 KiB
figurines `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/figurines.png	102.4 KiB	90.1 KiB
sneakers `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/sneakers.png	98.8 KiB	86.9 KiB
handbags `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/handbags.png	87.1 KiB	76.2 KiB
toys `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/toys.png	84.6 KiB	74.0 KiB
gaming `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/gaming.png	72.1 KiB	63.4 KiB
beauty `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/beauty.png	69.2 KiB	60.5 KiB
men `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/men.png	59.3 KiB	51.9 KiB
home `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/home.png	53.5 KiB	46.7 KiB
electronics `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/electronics.png	23.0 KiB	20.1 KiB
Retro 4 “Thunder” Black and Yellow US size 10.5 - Air Jordan `div.Thumb__StyledProductThumbWrapper-sc-166684af-1 > div.Flex-sc-92a9411d-0 > div.Product__CDNImageWrapper-sc-c3a991-1 > img.CDNImage__StyledNextImage-sc-2e57b269-0`	/photos/m32250349483_1.jpg?width=256&quality=75&_=1776896846	19.5 KiB	8.9 KiB
Women’s Lace-Up Wedges - TOMS `div.Thumb__StyledProductThumbWrapper-sc-166684af-1 > div.Flex-sc-92a9411d-0 > div.Product__CDNImageWrapper-sc-c3a991-1 > img.CDNImage__StyledNextImage-sc-2e57b269-0`	/photos/m94542569987_1.jpg?width=256&quality=75&_=1775046903	18.7 KiB	8.1 KiB
Say hello to your new favorite thing. `div > div.Container-sc-beaovl > div.Container-sc-beaovl > img.SectionHeader__ImageDesktop-sc-31242309-1`	/assets/img/banners/section_header_hellogoodbye.png?heigh...	8.5 KiB	6.4 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
u-web-assets.mercdn.net/assets/styles/dist/styles.min.css	2.8 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: 205 ms

URL	Time Spent
mercari.com/	205 ms
www.mercari.com/	0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
Get the app. Sell or buy. Almost anything. `body.ab-pause-scrolling > div#__next > div > div#getTheAppFooter`	0.187
Get the app. Sell or buy. Almost anything. `body.ab-pause-scrolling > div#__next > div > div#getTheAppFooter`	0.095
Privacy settings We use cookies to improve site experience, advertising, and ot… `body.ab-pause-scrolling > div#consent_blackbar > div#truste-consent-track`	0.000
Customize Got it `div#consent_blackbar > div#truste-consent-track > div#truste-consent-content > div#truste-consent-buttons`	0.000

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 770 ms 1.5 MiB

URL	Transfer Size	Est Savings
/builds/r-v1.26.1585/_next/static/chunks/pages/_app-951ae...	649.4 KiB	288.8 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.8 KiB	177.0 KiB
cdn.quadpay.com/v1/quadpay.js	201.6 KiB	130.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-MSDTXHX	166.9 KiB	109.3 KiB
www.mercari.com/ko40/gtd?id=AW-dynamic_home&cx=c&gtm=4e64k1	139.6 KiB	84.2 KiB
www.mercari.com/ko40/?id=G-DJ5N7E6D07&cx=c&gtm=4e64k1	177.1 KiB	73.1 KiB
www.mercari.com/ko40/	175.1 KiB	71.2 KiB
accounts.google.com/gsi/client	95.5 KiB	68.2 KiB
www.mercari.com/ko40/?id=DC-13580167&cx=c&gtm=4e64k1	136.3 KiB	66.1 KiB
www.mercari.com/ko40/?id=DC-13949580&cx=c&gtm=4e64k1	135.4 KiB	65.9 KiB
www.mercari.com/ko40/?id=DC-9344415&cx=c&gtm=4e64k1	134.9 KiB	65.4 KiB
www.mercari.com/ko40/gtd?id=AW-828932699&cx=c&gtm=4e64k1	142.8 KiB	64.3 KiB
www.mercari.com/ko40/?id=AW-782098151&cx=c&gtm=4e64k1	149.5 KiB	61.6 KiB
www.mercari.com/ko40/?id=AW-880627815&cx=c&gtm=4e64k1	149.5 KiB	61.2 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	34.0 KiB
/builds/r-v1.26.1585/_next/static/chunks/92924.1fd2d1cdd3...	60.4 KiB	25.5 KiB
consent.trustarc.com/asset/notice.js/v/v1.7-1729	36.0 KiB	22.1 KiB
/builds/r-v1.26.1585/_next/static/chunks/main-8a62d0182b0...	41.3 KiB	21.3 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
/builds/r-v1.26.1585/_next/static/chunks/pages/_app-951ae...	1.6 s	1.1 s	70 ms
/builds/r-v1.26.1585/_next/static/chunks/framework-410df7...	1.6 s	1.4 s	4.5 ms
Unattributable	995 ms	77 ms	0.0 ms
www.mercari.com/	321 ms	11 ms	1.3 ms
cdn.quadpay.com/v1/quadpay.js	233 ms	148 ms	22 ms
www.mercari.com/ko40/	187 ms	150 ms	18 ms
/builds/r-v1.26.1585/_next/static/chunks/92924.1fd2d1cdd3...	166 ms	51 ms	7.8 ms
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	111 ms	62 ms	41 ms
/builds/r-v1.26.1585/_next/static/chunks/2944.e4fc4314fde...	109 ms	90 ms	0.3 ms
www.mercari.com/ko40/?id=G-DJ5N7E6D07&cx=c&gtm=4e64k1	108 ms	89 ms	15 ms
/builds/r-v1.26.1585/_next/static/chunks/35407.b1a7ae4368...	98 ms	71 ms	0.3 ms
www.mercari.com/ko40/?id=AW-880627815&cx=c&gtm=4e64k1	96 ms	83 ms	12 ms
www.mercari.com/ko40/?id=AW-782098151&cx=c&gtm=4e64k1	94 ms	80 ms	12 ms
www.mercari.com/cdn-cgi/challenge-platform/scripts/jsd/main.js	87 ms	83 ms	0.7 ms
www.mercari.com/ko40/gtd?id=AW-828932699&cx=c&gtm=4e64k1	84 ms	73 ms	9.6 ms
www.mercari.com/ko40/?id=DC-9344415&cx=c&gtm=4e64k1	67 ms	56 ms	11 ms
www.mercari.com/ko40/?id=DC-13580167&cx=c&gtm=4e64k1	63 ms	52 ms	11 ms
/signals/config/332253387150322?v=2.9.303&r=stable&domain...	63 ms	55 ms	7.1 ms
www.mercari.com/ko40/?id=DC-13949580&cx=c&gtm=4e64k1	59 ms	48 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	4.2 s
Other	1.5 s
Style & Layout	345 ms
Script Parsing & Compilation	323 ms
Garbage Collection	187 ms
Rendering	70 ms
Parse HTML & CSS	33 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
The page has an unload handler in the main frame.	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
/appboy/communication/assets/image_assets/images/69dd83e2...	1.6 MiB
/builds/r-v1.26.1585/_next/static/chunks/pages/_app-951ae...	650.1 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
cdn.quadpay.com/v1/quadpay.js	202.0 KiB
www.mercari.com/ko40/?id=G-DJ5N7E6D07&cx=c&gtm=4e64k1	177.1 KiB
www.mercari.com/ko40/	175.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-MSDTXHX	167.3 KiB
www.mercari.com/ko40/?id=AW-880627815&cx=c&gtm=4e64k1	149.6 KiB
www.mercari.com/ko40/?id=AW-782098151&cx=c&gtm=4e64k1	149.6 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
athleticapparel `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/athleticapparel.png
sneakers `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/sneakers.png
downloadtheapp `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/downloadtheapp.png
women `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/women.png
men `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/men.png
kids `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/kids.png
home `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/home.png
figurines `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/figurines.png
tradingcards `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/tradingcards.png
gaming `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/gaming.png
electronics `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/electronics.png
toys `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/toys.png
beauty `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/beauty.png
handbags `div.Grid-sc-1avr99g > div.GridCol-sc-1revx1o > a.Link-sc-zv2dmn > img.AnonCards__CardImage-sc-1b3efe2a-1`	u-web-assets.mercdn.net/assets/anonHomeCards/desktop/handbags.png
mercari-lock-icon `div#truste-consent-content > div#truste-banner-header > div#truste-consent-icon > img`	consent.trustarc.com/get?name=mercari-lock-icon-dark-gray.svg
Women `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/1.svg
Men `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/2.svg
Electronics `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/7.svg
Toys `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/1611.svg
Gaming `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/84.svg
Handbags `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/21.svg
Home `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/4.svg
Vintage `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/5.svg
Beauty `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/6.svg
Kids `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/3.svg
Sports `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/8.svg
Handmade `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/9.svg
Office `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/2882.svg
Pet `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/143.svg
Outdoor `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/2633.svg
Tools `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/3170.svg
Books `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/141.svg
View all `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/meganavCategoryIcon/0.svg
American Express Logo `ul.UnstyledList-sc-1hlucv7 > li > a.Link-sc-zv2dmn > img.ResponsiveLogo-sc-1n6eohs`	u-web-assets.mercdn.net/assets/footer/payment-methods/american-express.svg
Visa Logo `ul.UnstyledList-sc-1hlucv7 > li > a.Link-sc-zv2dmn > img.ResponsiveLogo-sc-1n6eohs`	u-web-assets.mercdn.net/assets/footer/payment-methods/visa.svg
Paypal Logo `ul.UnstyledList-sc-1hlucv7 > li > a.Link-sc-zv2dmn > img.ResponsiveLogo-sc-1n6eohs`	u-web-assets.mercdn.net/assets/footer/payment-methods/paypal.svg
MasterCard Logo `ul.UnstyledList-sc-1hlucv7 > li > a.Link-sc-zv2dmn > img.ResponsiveLogo-sc-1n6eohs`	u-web-assets.mercdn.net/assets/footer/payment-methods/mastercard.svg
Discover Logo `ul.UnstyledList-sc-1hlucv7 > li > a.Link-sc-zv2dmn > img.ResponsiveLogo-sc-1n6eohs`	u-web-assets.mercdn.net/assets/footer/payment-methods/discover.svg
Zip Logo `ul.UnstyledList-sc-1hlucv7 > li > a.Link-sc-zv2dmn > img.ResponsiveLogo-sc-1n6eohs`	u-web-assets.mercdn.net/assets/footer/payment-methods/zip.svg
Paypal Pay in 4 Logo `ul.UnstyledList-sc-1hlucv7 > li > a.Link-sc-zv2dmn > img.ResponsiveLogo-sc-1n6eohs`	u-web-assets.mercdn.net/assets/footer/payment-methods/paypal-pay-in-4.svg
Apple Pay Logo `ul.UnstyledList-sc-1hlucv7 > li > a.Link-sc-zv2dmn > img.ResponsiveLogo-sc-1n6eohs`	u-web-assets.mercdn.net/assets/footer/payment-methods/apple-pay.svg
Venmo Logo `ul.UnstyledList-sc-1hlucv7 > li > a.Link-sc-zv2dmn > img.ResponsiveLogo-sc-1n6eohs`	u-web-assets.mercdn.net/assets/footer/payment-methods/venmo.svg
div.Flex-sc-92a9411d-0 > span.RectangleLabel-sc-cwvp98 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1 `div.Flex-sc-92a9411d-0 > span.RectangleLabel-sc-cwvp98 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`	u-web-assets.mercdn.net/assets/icons/icn-discount-arrow.svg

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

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Reduce unused CSS

●User Timing marks and measures 29 user timings

●Avoid long main-thread tasks 20 long tasks found

●Network Requests

●Network Round Trip Times 70 ms

●Server Backend Latencies 4,130 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 70 ms

○INP breakdown

○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.

Names and labels

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.common__Wrapper-sc-cfda3767-0 > div > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1 `div.common__Wrapper-sc-cfda3767-0 > div > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1`
div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1 `div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1`
div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1 `div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1`
div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1 `div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1`
div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1 `div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1`
div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1 `div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1`
div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1 `div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1`
div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1 `div.common__Wrapper-sc-cfda3767-0 > div.BodyContainer__ResponsiveContainer-sc-15b083c9-1 > div.Container-sc-beaovl > button.Button__StrippedButton-sc-9d0aeee1-1`

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.common__Wrapper-sc-cfda3767-0 > div.Flex-sc-92a9411d-0 > div.CuratedList__ArrowWrapper-sc-d27ad230-7 > img.Image-sc-a4ad9978-1 `div.common__Wrapper-sc-cfda3767-0 > div.Flex-sc-92a9411d-0 > div.CuratedList__ArrowWrapper-sc-d27ad230-7 > img.Image-sc-a4ad9978-1`
div.Flex-sc-92a9411d-0 > span.RectangleLabel-sc-cwvp98 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1 `div.Flex-sc-92a9411d-0 > span.RectangleLabel-sc-cwvp98 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Women `div.Container-sc-beaovl > a.Link__StyledAnchor-sc-3b50994f-0 > div.Container-sc-beaovl > h6.H7-sc-1e92cdr`
Apple `div.Container-sc-beaovl > div.Flex__Box-sc-92a9411d-1 > a.Link__StyledAnchor-sc-3b50994f-0 > h5.H5-sc-dphgz5`

These are opportunities to improve keyboard navigation in your application.

Best practices

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

Why this matters

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

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Form elements have associated labels

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

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

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

●Elements use only permitted ARIA attributes

●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.

●`[lang]` attributes have a valid value

●Document has a main landmark.

●Deprecated ARIA roles were not used

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

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○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.

○`<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

○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

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 / Warning	Source
SharedStorage	www.mercari.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	www.mercari.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	www.mercari.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Unload event listeners are deprecated and will be removed.	/builds/r-v1.26.1585/_next/static/chunks/pages/_app-951ae... line 1317, col 12527
AttributionReporting	consent.trustarc.com/autoblockasset/core.min.js?domain=mercari.com line 4, col 17791

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
/builds/r-v1.26.1585/_next/static/chunks/pages/_app-951ae... line 1317, col 7386	`[GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token.`
www.mercari.com/	`Not signed in with the identity provider.`

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.

●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 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.

Crawling and Indexing

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Do not sell or share my personal info `div#truste-consent-track > div#truste-consent-content > div.donotsell > a`

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

Content Best Practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.common__Wrapper-sc-cfda3767-0 > div.Flex-sc-92a9411d-0 > div.CuratedList__ArrowWrapper-sc-d27ad230-7 > img.Image-sc-a4ad9978-1 `div.common__Wrapper-sc-cfda3767-0 > div.Flex-sc-92a9411d-0 > div.CuratedList__ArrowWrapper-sc-d27ad230-7 > img.Image-sc-a4ad9978-1`
div.Flex-sc-92a9411d-0 > span.RectangleLabel-sc-cwvp98 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1 `div.Flex-sc-92a9411d-0 > span.RectangleLabel-sc-cwvp98 > div.Container-sc-beaovl > img.Image-sc-a4ad9978-1`

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 have descriptive text

●robots.txt is valid

●Document has a valid `hreflang`

○Document has a valid `rel=canonical`