Lighthouse Mobile

· 0 checks — Mobile 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.

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
store.akamai.steamstatic.com/public/images/v6/colored_body_top.png?v=2	0.0 ms	157.7 KiB
store.steampowered.com/stats/monthlytopreleaseimages?l=english&cc=SG	1800.0 s	180.1 KiB
store.akamai.steamstatic.com/public/images/v6/home/cluster_bg.png?v=1	0.0 ms	131.7 KiB
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Regular.ttf?v=4.015	0.0 ms	120.1 KiB
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Light.ttf?v=4.015	0.0 ms	120.1 KiB
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Medium.ttf?v=4.015	0.0 ms	56.9 KiB
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Bold.ttf?v=4.015	0.0 ms	56.8 KiB
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Black.ttf?v=4.015	0.0 ms	54.4 KiB
/categories/homepageimage/category/action?cc=us&l=english...	12433.0 s	43.0 KiB
/categories/homepageimage/category/survival?cc=us&l=engli...	19450.0 s	38.9 KiB
store.akamai.steamstatic.com/public/images//gift/steamcards_promo_03.png?v=1	0.0 ms	25.0 KiB
/categories/homepageimage/category/horror?cc=us&l=english...	13826.0 s	35.9 KiB
/categories/homepageimage/category/simulation?cc=us&l=eng...	39525.0 s	46.6 KiB
store.akamai.steamstatic.com/public/images/v6/home/background_spotlight.jpg	0.0 ms	11.1 KiB
store.akamai.steamstatic.com/public/shared/images/responsive/header_logo.png	0.0 ms	10.9 KiB
/public/shared/images/responsive/header_menu_hamburger.png	0.0 ms	4.0 KiB
/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydz...	2216851.0 s	33.1 KiB
/public/shared/images/responsive/footerLogo_valve_new.png	0.0 ms	2.5 KiB
store.akamai.steamstatic.com/public/images//v6/ico/ico_info.png	0.0 ms	2.1 KiB
store.akamai.steamstatic.com/public/shared/images/header/logo_steam.svg?t=962016	0.0 ms	2.0 KiB
store.akamai.steamstatic.com/public/images//v6/icon_cluster_controls.png	0.0 ms	1.5 KiB
store.akamai.steamstatic.com/public/images/blank.gif	0.0 ms	1.0 KiB
cdn.akamai.steamstatic.com/store/icons/icon_platform_mac.svg	0.0 ms	702 B
store.akamai.steamstatic.com/public/images/mobile/ResponsiveChevron.svg	0.0 ms	640 B
cdn.akamai.steamstatic.com/store/icons/icon_platform_win.svg	0.0 ms	491 B
/public/javascript/cluster.js?v=_t673ZDyh-Af&l=english&_c...	1733384.0 s	4.4 KiB
/public/shared/css/buttons.css?v=u7ItYmj40jWH&l=english&_...	1742969.0 s	4.2 KiB
store.akamai.steamstatic.com/public/shared/images/trans.gif	0.0 ms	317 B
/public/shared/javascript/auth_refresh.js?v=w6QbwI-5-j2S&...	2291865.0 s	1.1 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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:50.41 source:map[column:86167 line:2 type:source-location url:https://store.akamai.steamstatic.com/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydzNu8&l=english&_cdn=akamai 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:39.749 source:map[type:text value:[unattributed]]] map[reflowTime:30.668 source:map[column:77143 line:1 type:source-location url:https://store.akamai.steamstatic.com/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydzNu8&l=english&_cdn=akamai urlProvider:network]] map[reflowTime:19.742 source:map[column:75373 line:1 type:source-location url:https://store.akamai.steamstatic.com/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydzNu8&l=english&_cdn=akamai urlProvider:network]] map[reflowTime:0.405 source:map[column:32 line:1789 type:source-location url:https://store.akamai.steamstatic.com/public/shared/javascript/shared_global.js?v=MZ63Bj2bxVCi&l=english&_cdn=akamai urlProvider:network]] map[reflowTime:1.785 source:map[column:76049 line:1 type:source-location url:https://store.akamai.steamstatic.com/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydzNu8&l=english&_cdn=akamai urlProvider:network]] map[reflowTime:0.791 source:map[column:92842 line:1 type:source-location url:https://store.akamai.steamstatic.com/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydzNu8&l=english&_cdn=akamai urlProvider:network]] map[reflowTime:0.223 source:map[column:29 line:5106 type:source-location url:https://store.akamai.steamstatic.com/public/shared/javascript/shared_global.js?v=MZ63Bj2bxVCi&l=english&_cdn=akamai urlProvider:network]] map[reflowTime:1.847 source:map[column:91186 line:1 type:source-location url:https://store.akamai.steamstatic.com/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydzNu8&l=english&_cdn=akamai urlProvider:network]] map[reflowTime:34.628 source:map[column:1.60439e+06 line:13 type:source-location url:https://store.akamai.steamstatic.com/public/javascript/applications/store/main.js?v=CYgBmprFPCW8&l=english&_cdn=akamai urlProvider:network]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
Football Manager 26 `div.home_area_spotlight > div.spotlight_img > a > img`	/store_item_assets/steam/spotlights/f961b672ee8c2502d8bf6...	109.2 KiB	96.2 KiB
Featured & Recommended World of Warships Free To Play Warhammer 40,000: Space M… `div#responsive_page_template_content > div.home_page_col_wrapper > div.home_page_body_ctn > div.home_cluster_ctn`	store.akamai.steamstatic.com/public/images/v6/home/cluster_bg.png?v=1	131.4 KiB	53.5 KiB
div.carousel_items > a.store_main_capsule > div.capsule > div.screenshot `div.carousel_items > a.store_main_capsule > div.capsule > div.screenshot`	/store_item_assets/steam/apps/552990/0db97f96d1d92e0a1304...	85.5 KiB	52.5 KiB
div.carousel_items > a.store_main_capsule > div.capsule > div.screenshot `div.carousel_items > a.store_main_capsule > div.capsule > div.screenshot`	/store_item_assets/steam/apps/552990/dd539e8cf724c6f13aad...	74.6 KiB	41.6 KiB
div.carousel_items > a.store_main_capsule > div.capsule > div.screenshot `div.carousel_items > a.store_main_capsule > div.capsule > div.screenshot`	/store_item_assets/steam/apps/552990/ce262a0056031b3ed05f...	71.8 KiB	38.9 KiB
Roots of Pacha `div.spotlight_col > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/1245560/fb243da1a884f5ae805...	53.7 KiB	37.6 KiB
div.carousel_items > a.store_main_capsule > div.capsule > div.screenshot `div.carousel_items > a.store_main_capsule > div.capsule > div.screenshot`	/store_item_assets/steam/apps/552990/9f38903d525fdce3bdb1...	64.4 KiB	31.4 KiB
Cat Quest: The Fur-tastic Trilogy `div.spotlight_col > a.store_capsule > div.capsule > img`	/store_item_assets/steam/bundles/41962/oiocrdwv3nie3a6m/h...	35.6 KiB	29.1 KiB
Slay the Spire 2 `div.focus > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/2868840/b0958d387dc366211e0...	32.0 KiB	25.5 KiB
KuloNiku: Bowl Up! `div.focus > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/3357960/11e2af7df9465e47962...	29.7 KiB	23.3 KiB
div#module_top_new_releases > div.home_page_content > div.top_new_releases_banner_ctn > div.top_new_releases_background `div#module_top_new_releases > div.home_page_content > div.top_new_releases_banner_ctn > div.top_new_releases_background`	store.steampowered.com/stats/monthlytopreleaseimages?l=english&cc=SG	179.4 KiB	23.1 KiB
John Carpenter's Toxic Commando `div.focus > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/2157830/ade0163ee0cebba5dc9...	28.4 KiB	21.9 KiB
div#home_maincap_v7 > div.carousel_items > a.store_main_capsule > div.capsule `div#home_maincap_v7 > div.carousel_items > a.store_main_capsule > div.capsule`	/store_item_assets/steam/apps/552990/0f2acae9f2d6926f3b8d...	55.8 KiB	20.5 KiB
div.carousel_items > div.focus > a.content_hub_capsule_ctn > img `div.carousel_items > div.focus > a.content_hub_capsule_ctn > img`	/categories/homepageimage/category/simulation?cc=us&l=eng...	44.8 KiB	20.1 KiB
Dome Keeper `div.focus > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/1637320/39810977acc72c02958...	24.0 KiB	17.5 KiB
Everwind `div.focus > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/2253100/81c5fb1f7602d9fe92a...	24.0 KiB	17.5 KiB
WRATH: Aeon of Ruin VR - Brutal Edition `div.next > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/3430260/8330236b32df5e24bea...	23.3 KiB	16.9 KiB
div.carousel_items > div.focus > a.content_hub_capsule_ctn > img `div.carousel_items > div.focus > a.content_hub_capsule_ctn > img`	/categories/homepageimage/category/action?cc=us&l=english...	41.2 KiB	16.5 KiB
WWE 2K26 `div.focus > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/3717070/6e590c37107f7306ab9...	21.1 KiB	14.6 KiB
Forefront `div.next > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/2981220/17412ccf3ff0a2f6a50...	20.7 KiB	14.3 KiB
London Games Festival. Presented by Games London and Fireshine Games. `div.home_area_spotlight > div.spotlight_img > a > img`	/store_item_assets/steam/spotlights/a52d6f82995d620548b7a...	26.5 KiB	13.5 KiB
div.carousel_items > div.focus > a.content_hub_capsule_ctn > img `div.carousel_items > div.focus > a.content_hub_capsule_ctn > img`	/categories/homepageimage/category/survival?cc=us&l=engli...	36.6 KiB	11.9 KiB
R.E.P.O. `div.focus > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/3241660/1ea445e044a2d5b09cf...	17.6 KiB	11.1 KiB
div.carousel_items > div.focus > a.content_hub_capsule_ctn > img `div.carousel_items > div.focus > a.content_hub_capsule_ctn > img`	/categories/homepageimage/category/horror?cc=us&l=english...	34.1 KiB	10.9 KiB
RV There Yet? `div.focus > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/3949040/cae24b4ed7f4531be51...	16.3 KiB	9.8 KiB
STEAM `div.responsive_header_content > div.responsive_header_logo > a > img`	store.akamai.steamstatic.com/public/shared/images/responsive/header_logo.png	10.6 KiB	9.2 KiB
Hot Dogs, Horseshoes & Hand Grenades `div.next > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/450540/header_292x136.jpg?t...	13.0 KiB	6.5 KiB
The Exit 8 VR `div.next > a.store_capsule > div.capsule > img`	/store_item_assets/steam/apps/3193770/header_292x136.jpg?...	12.9 KiB	6.4 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-20-IMG

nodeLabel: London Games Festival. Presented by Games London and Fireshine Games.

path: 1,HTML,1,BODY,0,DIV,5,DIV,6,DIV,9,DIV,1,DIV,6,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,A,0,IMG

selector: div.home_area_spotlight > div.spotlight_img > a > img

snippet: <img src="https://shared.akamai.steamstatic.com/store_item_assets/steam/spotlights/a…" data-image-url="https://shared.akamai.steamstatic.com/store_item_assets/steam/spotlights/a…" alt="London Games Festival. Presented by Games London and Fireshine Games." border="0">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Protocol
/public/shared/css/motiva_sans.css?v=4Vj7bvhvv_UL&l=engli...	http/1.1
/public/shared/css/shared_global.css?v=fNjyilod6jgc&l=eng...	http/1.1
/public/shared/css/buttons.css?v=u7ItYmj40jWH&l=english&_...	http/1.1
/public/css/v6/store.css?v=52yuvMRJwtDu&l=english&_cdn=ak...	http/1.1
/public/css/styles_linux.css?v=LcZAgwD7_TSW&l=english&_cd...	http/1.1
/public/css/v6/home.css?v=xeMXPE4YKqdZ&l=english&_cdn=akamai	http/1.1
/public/css/v6/creator_hub.css?v=W3_oCd4QrKak&l=english&_...	http/1.1
/public/shared/css/shared_responsive.css?v=Q7leKFKXzNcD&l...	http/1.1
/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydz...	http/1.1
/public/shared/javascript/tooltip.js?v=k5leO7MVvAaV&l=eng...	http/1.1
/public/shared/javascript/shared_global.js?v=MZ63Bj2bxVCi...	http/1.1
/public/shared/javascript/auth_refresh.js?v=w6QbwI-5-j2S&...	http/1.1
/public/javascript/main.js?v=2jl8YRZgA0FC&l=english&_cdn=...	http/1.1
/public/javascript/dynamicstore.js?v=Ip2--85Texdk&l=engli...	http/1.1
/public/javascript/home.js?v=p1JLxKgLnZAL&l=english&_cdn=...	http/1.1
/public/javascript/cluster.js?v=_t673ZDyh-Af&l=english&_c...	http/1.1
/public/shared/javascript/shared_responsive_adapter.js?v=...	http/1.1
/public/shared/images/responsive/footerLogo_valve_new.png	http/1.1
/public/shared/images/responsive/header_menu_hamburger.png	http/1.1
store.akamai.steamstatic.com/public/shared/images/responsive/header_logo.png	http/1.1
store.akamai.steamstatic.com/public/shared/images/header/logo_steam.svg?t=962016	http/1.1
/public/css/applications/store/main.css?v=8uAbPKjh_iOP&l=...	http/1.1
/public/javascript/applications/store/manifest.js?v=HE3Cj...	http/1.1
/public/javascript/applications/store/libraries~b28b7af69...	http/1.1
/public/javascript/applications/store/main.js?v=CYgBmprFP...	http/1.1
store.akamai.steamstatic.com/public/images//gift/steamcards_promo_03.png?v=1	http/1.1
store.akamai.steamstatic.com/public/images/mobile/ResponsiveChevron.svg	http/1.1
store.akamai.steamstatic.com/public/images/blank.gif	http/1.1
store.akamai.steamstatic.com/public/shared/images/trans.gif	http/1.1
store.akamai.steamstatic.com/public/images//v6/ico/ico_info.png	http/1.1
store.akamai.steamstatic.com/public/images/v6/colored_body_top.png?v=2	http/1.1
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Bold.ttf?v=4.015	http/1.1
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Regular.ttf?v=4.015	http/1.1
/public/javascript/applications/store/shared_english-json...	http/1.1
/public/javascript/applications/store/sales_english-json....	http/1.1
/public/javascript/applications/store/main_english-json.j...	http/1.1
/public/javascript/applications/store/marketing_english-j...	http/1.1
/public/javascript/applications/store/shoppingcart_englis...	http/1.1
/public/javascript/applications/store/6976.js?contenthash...	http/1.1
store.akamai.steamstatic.com/public/images/v6/home/cluster_bg.png?v=1	http/1.1
store.akamai.steamstatic.com/public/images/v6/home/background_spotlight.jpg	http/1.1
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Light.ttf?v=4.015	http/1.1
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Medium.ttf?v=4.015	http/1.1
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Black.ttf?v=4.015	http/1.1
store.akamai.steamstatic.com/public/images//v6/icon_cluster_controls.png	http/1.1
/categories/homepageimage/category/horror?cc=us&l=english...	http/1.1
/categories/homepageimage/category/action?cc=us&l=english...	http/1.1
/categories/homepageimage/category/survival?cc=us&l=engli...	http/1.1
/categories/homepageimage/category/simulation?cc=us&l=eng...	http/1.1
/public/javascript/applications/store/libraries~be6775ae1...	http/1.1
/public/javascript/applications/store/libraries~73ab827c1...	http/1.1
/public/css/applications/store/chunk~2dc60a8f0.css?conten...	http/1.1
/public/javascript/applications/store/chunk~2dc60a8f0.js?...	http/1.1
/public/css/applications/store/footer.css?contenthash=c41...	http/1.1
/public/javascript/applications/store/footer.js?contentha...	http/1.1
/public/javascript/applications/store/3621.js?contenthash...	http/1.1

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

value: no origins were preconnected

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
/public/javascript/home.js?v=p1JLxKgLnZAL&l=english&_cdn=...	35.8 KiB	1.7 s
/public/shared/javascript/shared_responsive_adapter.js?v=...	6.3 KiB	755 ms
/public/javascript/cluster.js?v=_t673ZDyh-Af&l=english&_c...	4.4 KiB	605 ms
/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydz...	33.1 KiB	2.1 s
/public/javascript/main.js?v=2jl8YRZgA0FC&l=english&_cdn=...	20.6 KiB	1.4 s
/public/javascript/dynamicstore.js?v=Ip2--85Texdk&l=engli...	20.3 KiB	1.4 s
/public/shared/javascript/tooltip.js?v=k5leO7MVvAaV&l=eng...	4.8 KiB	791 ms
/public/shared/javascript/shared_global.js?v=MZ63Bj2bxVCi...	38.3 KiB	1.7 s
/public/shared/javascript/auth_refresh.js?v=w6QbwI-5-j2S&...	1.1 KiB	455 ms
/public/css/v6/home.css?v=xeMXPE4YKqdZ&l=english&_cdn=akamai	20.5 KiB	1.8 s
/public/shared/css/shared_responsive.css?v=Q7leKFKXzNcD&l...	6.8 KiB	1.1 s
/public/css/v6/creator_hub.css?v=W3_oCd4QrKak&l=english&_...	1.2 KiB	755 ms
/public/css/v6/store.css?v=52yuvMRJwtDu&l=english&_cdn=ak...	26.0 KiB	2.1 s
/public/shared/css/buttons.css?v=u7ItYmj40jWH&l=english&_...	4.2 KiB	905 ms
/public/shared/css/shared_global.css?v=fNjyilod6jgc&l=eng...	18.7 KiB	1.7 s
/public/css/styles_linux.css?v=LcZAgwD7_TSW&l=english&_cd...	607 B	755 ms
/public/shared/css/motiva_sans.css?v=4Vj7bvhvv_UL&l=engli...	1.1 KiB	755 ms

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
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Light.ttf?v=4.015	20 ms
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Medium.ttf?v=4.015	15 ms
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Regular.ttf?v=4.015	10 ms
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Black.ttf?v=4.015	10 ms
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Bold.ttf?v=4.015	5.0 ms

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

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 920 ms

URL	Time Spent
steampowered.com/	920 ms
store.steampowered.com/	0.0 ms

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 11.1 KiB

URL	Transfer Size	Est Savings
/public/css/v6/store.css?v=52yuvMRJwtDu&l=english&_cdn=ak...	26.0 KiB	4.7 KiB
/public/css/v6/home.css?v=xeMXPE4YKqdZ&l=english&_cdn=akamai	20.5 KiB	3.8 KiB
/public/shared/css/shared_global.css?v=fNjyilod6jgc&l=eng...	18.7 KiB	2.7 KiB

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: 150 ms 27.5 KiB

URL	Transfer Size	Est Savings
/public/shared/javascript/shared_global.js?v=MZ63Bj2bxVCi...	37.8 KiB	10.1 KiB
/public/javascript/home.js?v=p1JLxKgLnZAL&l=english&_cdn=...	35.3 KiB	7.6 KiB
/public/javascript/main.js?v=2jl8YRZgA0FC&l=english&_cdn=...	20.1 KiB	5.2 KiB
/public/javascript/dynamicstore.js?v=Ip2--85Texdk&l=engli...	19.8 KiB	4.6 KiB

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: 450 ms 108.8 KiB

URL	Transfer Size	Est Savings
/public/css/applications/store/main.css?v=8uAbPKjh_iOP&l=...	58.3 KiB	53.4 KiB
/public/css/v6/store.css?v=52yuvMRJwtDu&l=english&_cdn=ak...	25.5 KiB	21.7 KiB
/public/shared/css/shared_global.css?v=fNjyilod6jgc&l=eng...	18.2 KiB	17.3 KiB
/public/css/v6/home.css?v=xeMXPE4YKqdZ&l=english&_cdn=akamai	20.0 KiB	16.3 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

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 3.2 s 450.7 KiB

URL	Transfer Size	Est Savings
/public/javascript/applications/store/main.js?v=CYgBmprFP...	373.8 KiB	309.9 KiB
/public/javascript/applications/store/libraries~b28b7af69...	165.1 KiB	89.6 KiB
/public/shared/javascript/shared_global.js?v=MZ63Bj2bxVCi...	37.8 KiB	30.8 KiB
/public/javascript/home.js?v=p1JLxKgLnZAL&l=english&_cdn=...	35.3 KiB	20.4 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
store.steampowered.com/	1.6 s	21 ms	95 ms
/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydz...	1.2 s	776 ms	24 ms
/public/javascript/applications/store/main.js?v=CYgBmprFP...	830 ms	597 ms	220 ms
/public/javascript/applications/store/libraries~b28b7af69...	686 ms	436 ms	92 ms
Unattributable	617 ms	15 ms	0.0 ms
/public/javascript/applications/store/shared_english-json...	148 ms	112 ms	35 ms
/public/javascript/applications/store/sales_english-json....	80 ms	36 ms	43 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	2.1 s
Style & Layout	1.3 s
Other	882 ms
Script Parsing & Compilation	643 ms
Parse HTML & CSS	299 ms
Rendering	220 ms
Garbage Collection	15 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
/public/javascript/applications/store/main.js?v=CYgBmprFP...	374.3 KiB
store.steampowered.com/stats/monthlytopreleaseimages?l=english&cc=SG	180.1 KiB
/public/javascript/applications/store/libraries~b28b7af69...	165.6 KiB
store.akamai.steamstatic.com/public/images/v6/colored_body_top.png?v=2	157.7 KiB
store.akamai.steamstatic.com/public/images/v6/home/cluster_bg.png?v=1	131.7 KiB
store.steampowered.com/	126.5 KiB
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Regular.ttf?v=4.015	120.1 KiB
store.akamai.steamstatic.com/public/shared/fonts/MotivaSans-Light.ttf?v=4.015	120.1 KiB
/store_item_assets/steam/spotlights/f961b672ee8c2502d8bf6...	109.5 KiB
/store_item_assets/steam/apps/552990/0db97f96d1d92e0a1304...	85.8 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.carousel_items > div.focus > a.content_hub_capsule_ctn > img `div.carousel_items > div.focus > a.content_hub_capsule_ctn > img`	/categories/homepageimage/category/horror?cc=us&l=english...
div.carousel_items > div.focus > a.content_hub_capsule_ctn > img `div.carousel_items > div.focus > a.content_hub_capsule_ctn > img`	/categories/homepageimage/category/action?cc=us&l=english...
div.carousel_items > div.focus > a.content_hub_capsule_ctn > img `div.carousel_items > div.focus > a.content_hub_capsule_ctn > img`	/categories/homepageimage/category/survival?cc=us&l=engli...
div.carousel_items > div.focus > a.content_hub_capsule_ctn > img `div.carousel_items > div.focus > a.content_hub_capsule_ctn > img`	/categories/homepageimage/category/simulation?cc=us&l=eng...
STEAM `div.responsive_header_content > div.responsive_header_logo > a > img`	store.akamai.steamstatic.com/public/shared/images/responsive/header_logo.png
London Games Festival. Presented by Games London and Fireshine Games. `div.home_area_spotlight > div.spotlight_img > a > img`	/store_item_assets/steam/spotlights/a52d6f82995d620548b7a...
Football Manager 26 `div.home_area_spotlight > div.spotlight_img > a > img`	/store_item_assets/steam/spotlights/f961b672ee8c2502d8bf6...
div.responsive_header > div.responsive_header_content > div#responsive_menu_logo > img `div.responsive_header > div.responsive_header_content > div#responsive_menu_logo > img`	/public/shared/images/responsive/header_menu_hamburger.png
div.mainmenu_contents > div.mainmenu_footer > div.mainmenu_footer_logo > img `div.mainmenu_contents > div.mainmenu_footer > div.mainmenu_footer_logo > img`	/public/shared/images/responsive/footerLogo_valve_new.png
a.btnv6_white_transparent > div.nonresponsive_hidden > div.responsive_content_dive > img.nonresponsive_hidden `a.btnv6_white_transparent > div.nonresponsive_hidden > div.responsive_content_dive > img.nonresponsive_hidden`	store.akamai.steamstatic.com/public/images/mobile/ResponsiveChevron.svg
a.btnv6_white_transparent > div.nonresponsive_hidden > div.responsive_content_dive > img.nonresponsive_hidden `a.btnv6_white_transparent > div.nonresponsive_hidden > div.responsive_content_dive > img.nonresponsive_hidden`	store.akamai.steamstatic.com/public/images/mobile/ResponsiveChevron.svg
Travellers Rest `div.home_area_spotlight > div.spotlight_img > a > img`	store.akamai.steamstatic.com/public/images/blank.gif
Xbox Game Studios Advertising App `div.home_area_spotlight > div.spotlight_img > a > img`	store.akamai.steamstatic.com/public/images/blank.gif
WWE 2K26 Weekend Deal `div.home_area_spotlight > div.spotlight_img > a > img`	store.akamai.steamstatic.com/public/images/blank.gif
Hello Kitty Island Adventure `div.home_area_spotlight > div.spotlight_img > a > img`	store.akamai.steamstatic.com/public/images/blank.gif
Dragon Ball FRANCHISE SALE `div.home_area_spotlight > div.spotlight_img > a > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div.next > a.content_hub_capsule_ctn > img `div.carousel_items > div.next > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div.next > a.content_hub_capsule_ctn > img `div.carousel_items > div.next > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div.next > a.content_hub_capsule_ctn > img `div.carousel_items > div.next > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div.next > a.content_hub_capsule_ctn > img `div.carousel_items > div.next > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div > a.content_hub_capsule_ctn > img `div.carousel_items > div > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div > a.content_hub_capsule_ctn > img `div.carousel_items > div > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div > a.content_hub_capsule_ctn > img `div.carousel_items > div > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div > a.content_hub_capsule_ctn > img `div.carousel_items > div > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div > a.content_hub_capsule_ctn > img `div.carousel_items > div > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div > a.content_hub_capsule_ctn > img `div.carousel_items > div > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div > a.content_hub_capsule_ctn > img `div.carousel_items > div > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div > a.content_hub_capsule_ctn > img `div.carousel_items > div > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div.prev > a.content_hub_capsule_ctn > img `div.carousel_items > div.prev > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div.prev > a.content_hub_capsule_ctn > img `div.carousel_items > div.prev > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div.prev > a.content_hub_capsule_ctn > img `div.carousel_items > div.prev > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
div.carousel_items > div.prev > a.content_hub_capsule_ctn > img `div.carousel_items > div.prev > a.content_hub_capsule_ctn > img`	store.akamai.steamstatic.com/public/images/blank.gif
MOUSE: P.I. For Hire `div.tab_content_items > a.tab_item > div.tab_item_cap > img.tab_item_cap_img`	store.akamai.steamstatic.com/public/shared/images/trans.gif
OPUS: Prism Peak `div.tab_content_items > a.tab_item > div.tab_item_cap > img.tab_item_cap_img`	store.akamai.steamstatic.com/public/shared/images/trans.gif
Last Flag `div.tab_content_items > a.tab_item > div.tab_item_cap > img.tab_item_cap_img`	store.akamai.steamstatic.com/public/shared/images/trans.gif
REPLACED `div.tab_content_items > a.tab_item > div.tab_item_cap > img.tab_item_cap_img`	store.akamai.steamstatic.com/public/shared/images/trans.gif
Moses & Plato - Last Train to Clawville `div.tab_content_items > a.tab_item > div.tab_item_cap > img.tab_item_cap_img`	store.akamai.steamstatic.com/public/shared/images/trans.gif
Cubetory `div.tab_content_items > a.tab_item > div.tab_item_cap > img.tab_item_cap_img`	store.akamai.steamstatic.com/public/shared/images/trans.gif
Full Metal Sergeant 2 `div.tab_content_items > a.tab_item > div.tab_item_cap > img.tab_item_cap_img`	store.akamai.steamstatic.com/public/shared/images/trans.gif
Warhammer 40,000: Fire Warrior (Classic) `div.tab_content_items > a.tab_item > div.tab_item_cap > img.tab_item_cap_img`	store.akamai.steamstatic.com/public/shared/images/trans.gif
Final Liberation: Warhammer Epic 40,000 (Classic) `div.tab_content_items > a.tab_item > div.tab_item_cap > img.tab_item_cap_img`	store.akamai.steamstatic.com/public/shared/images/trans.gif
Seeds of Calamity `div.tab_content_items > a.tab_item > div.tab_item_cap > img.tab_item_cap_img`	store.akamai.steamstatic.com/public/shared/images/trans.gif

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

●Optimize viewport for mobile

●User Timing marks and measures 5 user timings

●Avoid long main-thread tasks 16 long tasks found

●Avoid non-composited animations 1 animated element found

●Network Requests

●Network Round Trip Times 0 ms

●Server Backend Latencies 160 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 270 ms

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

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

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
World of Warships Free To Play Warhammer 40,000: Space Marine 2 -67% S$69.90 S$… `div.home_cluster_ctn > div.home_page_content > div#home_maincap_v7 > div.carousel_items`
WEEKEND DEAL Offer ends 20 Apr @ 10:00am. Up to -95% FREE WEEKEND Play for free… `div#module_special_offers > div.home_page_content > div#spotlight_carousel > div.carousel_items`
HORROR ACTION SURVIVAL SIMULATION CASUAL ROLE-PLAYING STORY-RICH ANIME RACING V… `div.home_page_content > div.content_hub_carousel > div.carousel_container > div.carousel_items`
NEW RELEASES SPECIALS FREE GAMES BY USER TAGS `div.home_page_body_ctn > div.home_ctn > div.big_buttons > div.button_container`
LIVE -20% S$12.00 S$9.60 LIVE -60% S$17.00 S$6.80 S$9.50 S$8.50 LIVE S$12.00 LI… `div.home_ctn > div.home_page_content > div.carousel_container > div.carousel_items`
S$26.00 MOUSE: P.I. For Hire Action, FPS, Cartoony, Boomer Shooter -10% S$24.75… `div.home_leftcol > div#home_tabs_content > div#tab_newreleases_content > div.tab_content_items`
S$7.50 S$20.00 S$18.50 S$32.99 `div.home_ctn > div.home_page_content > div.carousel_container > div.carousel_items`

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
-67% `a.store_main_capsule > div.info > div.discount_block > div.discount_pct`
S$69.90 `div.info > div.discount_block > div.discount_prices > div.discount_original_price`
HORROR `div.focus > a.content_hub_capsule_ctn > div.label_ctn > span.label`
ACTION `div.focus > a.content_hub_capsule_ctn > div.label_ctn > span.label`
-20% `a.store_capsule > div > div.discount_block > div.discount_pct`
-60% `a.store_capsule > div > div.discount_block > div.discount_pct`
-10% `div.tab_content_items > a.tab_item > div.discount_block > div.discount_pct`
-20% `div.tab_content_items > a.tab_item > div.discount_block > div.discount_pct`
-10% `div.tab_content_items > a.tab_item > div.discount_block > div.discount_pct`
-30% `div.tab_content_items > a.tab_item > div.discount_block > div.discount_pct`
-15% `div.tab_content_items > a.tab_item > div.discount_block > div.discount_pct`
-20% `div.tab_content_items > a.tab_item > div.discount_block > div.discount_pct`
-20% `div.tab_content_items > a.tab_item > div.discount_block > div.discount_pct`
-40% `div.tab_content_items > a.tab_item > div.discount_block > div.discount_pct`
Get Mobile Apps `footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div.ja5o2GZTopxfGJArsZgFh > a._2rbqjlRz2ShvIiYodebfc2`

These are opportunities to improve the legibility of your content.

Names and labels

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.mainmenu_contents > div.mainmenu_footer > div.mainmenu_footer_logo > img `div.mainmenu_contents > div.mainmenu_footer > div.mainmenu_footer_logo > img`
div.responsive_header > div.responsive_header_content > div#responsive_menu_logo > img `div.responsive_header > div.responsive_header_content > div#responsive_menu_logo > img`

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
footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm `footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm`
footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm `footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm`
footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm `footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm`
footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm `footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm`
footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm `footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm`
footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm `footer._1pYnEk5gbmwcthm_TJ9jVl > div.uh0Q7gKQw3ZgTwvd5mQiZ > div._1SxQuUnaM-MXeF5UfssWve > a.FYJ4NYxpWeIha0N1-jUcm`

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.

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
-67% S$69.90 S$23.06 `div.carousel_items > a.store_main_capsule > div.info > div.discount_block`
-40% S$80.00 S$48.00 `div.home_area_spotlight > div.spotlight_content > div.spotlight_body > div.discount_block`
-20% S$12.00 S$9.60 `div.focus > a.store_capsule > div > div.discount_block`
-60% S$17.00 S$6.80 `div.focus > a.store_capsule > div > div.discount_block`
-10% S$24.75 S$22.27 `div#tab_newreleases_content > div.tab_content_items > a.tab_item > div.discount_block`
-20% S$12.99 S$10.39 `div#tab_newreleases_content > div.tab_content_items > a.tab_item > div.discount_block`
-10% S$19.99 S$17.99 `div#tab_newreleases_content > div.tab_content_items > a.tab_item > div.discount_block`
-30% S$14.50 S$10.15 `div#tab_newreleases_content > div.tab_content_items > a.tab_item > div.discount_block`
-15% S$11.25 S$9.56 `div#tab_newreleases_content > div.tab_content_items > a.tab_item > div.discount_block`
-20% S$11.99 S$9.59 `div#tab_newreleases_content > div.tab_content_items > a.tab_item > div.discount_block`
-20% S$6.99 S$5.59 `div#tab_newreleases_content > div.tab_content_items > a.tab_item > div.discount_block`
-40% S$14.50 S$8.70 `div#tab_newreleases_content > div.tab_content_items > a.tab_item > div.discount_block`

○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]`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

●Form elements have associated labels

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

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

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

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

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

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

●Links are distinguishable without relying on color.

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

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

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

○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

○`<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

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

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

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○No element has a `[tabindex]` value greater than 0

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

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

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

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

Best Practices

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Displayed size	Actual size	Expected size
London Games Festival. Presented by Games London and Fireshine Games. `div.home_area_spotlight > div.spotlight_img > a > img`	/store_item_assets/steam/spotlights/a52d6f82995d620548b7a...	306 x 260	306 x 260	459 x 390
Football Manager 26 `div.home_area_spotlight > div.spotlight_img > a > img`	/store_item_assets/steam/spotlights/f961b672ee8c2502d8bf6...	306 x 260	306 x 260	459 x 390

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
Unload event listeners are deprecated and will be removed.	/public/shared/javascript/jquery-1.8.3.min.js?v=NXam5zydz... line 1, col 34394

●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

●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

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
store.steampowered.com/specials?snr=1_4_4_#tab=TopSellers	More
store.steampowered.com/recommender/?snr=1_4_4_	More
store.steampowered.com/explore/?snr=1_4_4_	Learn More
store.steampowered.com/communityrecommendations/?snr=1_4_4_	More
store.steampowered.com/vr/?snr=1_4_4_	More

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.mainmenu_contents > div.mainmenu_footer > div.mainmenu_footer_logo > img `div.mainmenu_contents > div.mainmenu_footer > div.mainmenu_footer_logo > img`
div.responsive_header > div.responsive_header_content > div#responsive_menu_logo > img `div.responsive_header > div.responsive_header_content > div#responsive_menu_logo > img`

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`