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.

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
static-cdn.jtvnw.net/previews-ttv/live_user_esl_dota2-640x360.jpg	300.0 s	61.4 KiB
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	600.0 s	56.8 KiB
static-cdn.jtvnw.net/previews-ttv/live_user_jynxzi-640x360.jpg	300.0 s	47.2 KiB
static-cdn.jtvnw.net/previews-ttv/live_user_mooda-640x360.jpg	300.0 s	46.4 KiB
static-cdn.jtvnw.net/previews-ttv/live_user_psychedeliacy-640x360.jpg	300.0 s	45.6 KiB
static-cdn.jtvnw.net/previews-ttv/live_user_ow_esports-640x360.jpg	300.0 s	44.1 KiB
static-cdn.jtvnw.net/previews-ttv/live_user_ohnepixel-640x360.jpg	300.0 s	37.1 KiB
static-cdn.jtvnw.net/previews-ttv/live_user_bikerush-320x180.jpg	300.0 s	21.5 KiB
static-cdn.jtvnw.net/previews-ttv/live_user_tomovids-320x180.jpg	300.0 s	19.7 KiB
/jtv_user_pictures/13357a20-699e-4f73-8f29-8e63d715ca85-p...	14400.0 s	26.3 KiB
static-cdn.jtvnw.net/previews-ttv/live_user_esthonx-320x180.jpg	300.0 s	17.5 KiB
static-cdn.jtvnw.net/previews-ttv/live_user_150k-320x180.jpg	300.0 s	17.1 KiB
/eppo/api/flag-config/v1/config?sdkName=js-sdk-client&sdk...	300.0 s	16.8 KiB
static-cdn.jtvnw.net/previews-ttv/live_user_allshifted-320x180.jpg	300.0 s	14.7 KiB
static-cdn.jtvnw.net/ttv-boxart/515025-188x250.jpg	14400.0 s	17.0 KiB
static-cdn.jtvnw.net/ttv-boxart/21779-188x250.jpg	14400.0 s	16.9 KiB
static-cdn.jtvnw.net/ttv-boxart/516575-188x250.jpg	14400.0 s	15.6 KiB
static-cdn.jtvnw.net/ttv-boxart/509658-188x250.jpg	14400.0 s	13.4 KiB
static-cdn.jtvnw.net/ttv-boxart/32399-188x250.jpg	14400.0 s	13.3 KiB
static-cdn.jtvnw.net/ttv-boxart/29595-188x250.jpg	14400.0 s	12.7 KiB
/jtv_user_pictures/04c65db8-ef62-4fb5-8cff-09f0521de151-p...	14400.0 s	12.1 KiB
/jtv_user_pictures/c2b85c38-cfdc-4c87-9c5b-80a6dcd2c4f5-p...	14400.0 s	10.6 KiB
/jtv_user_pictures/fe17c146-00ae-4e90-9c39-75fe40163cd5-p...	14400.0 s	9.7 KiB
/jtv_user_pictures/5742b015-e6ed-4f7c-a1dd-87cd88fe1eb9-p...	14400.0 s	9.2 KiB
/jtv_user_pictures/483a37ac-58fd-4e2f-8dc3-2c68a0164112-p...	14400.0 s	8.4 KiB
/jtv_user_pictures/e086d0a4-781d-49d6-9732-2d8f9516f9c0-p...	14400.0 s	8.1 KiB
/jtv_user_pictures/b532ac95-4050-42cb-9d5d-9666a243654c-p...	14400.0 s	8.0 KiB
www.gstatic.com/eureka/clank/146/cast_sender.js	86400.0 s	13.4 KiB
/jtv_user_pictures/3313f669-483c-4f60-bab4-c6e37bae2ecd-p...	14400.0 s	7.4 KiB
/jtv_user_pictures/8657d231-d382-4f5a-80bb-373c616281f1-p...	14400.0 s	5.4 KiB
/jtv_user_pictures/5742b015-e6ed-4f7c-a1dd-87cd88fe1eb9-p...	14400.0 s	5.1 KiB
/jtv_user_pictures/b532ac95-4050-42cb-9d5d-9666a243654c-p...	14400.0 s	4.9 KiB
/jtv_user_pictures/3313f669-483c-4f60-bab4-c6e37bae2ecd-p...	14400.0 s	4.5 KiB
/jtv_user_pictures/a54fbe1c-2719-4f79-bcd6-ef9b2fdb2257-p...	14400.0 s	4.2 KiB
sb.scorecardresearch.com/beacon.js	86400.0 s	6.7 KiB
/jtv_user_pictures/645d98a0-a2eb-48a3-b687-cfbc55243e4a-p...	14400.0 s	2.3 KiB
/jtv_user_pictures/b470b382-2bd7-489f-9755-1af47d0b0f6f-p...	14400.0 s	1.9 KiB
/jtv_user_pictures/645d98a0-a2eb-48a3-b687-cfbc55243e4a-p...	14400.0 s	1.5 KiB
/p2?c1=2&c2=6745306&ns_type=hidden&ns_st_sv=5.1.3.160420&...	0.0 ms	298 B
/p2?ax_uuid=8abca52130274576bc117cc403514ca1&c1=9&c2=3186...	0.0 ms	296 B

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:67.617 source:map[column:620292 line:1 type:source-location url:https://assets.twitch.tv/assets/2433-0b949759e40ba0e099da.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:60.907 source:map[type:text value:[unattributed]]] map[reflowTime:59.356 source:map[column:913 line:0 type:source-location url:https://assets.twitch.tv/assets/57621-813bb4d691c65c0d03cf.js urlProvider:network]] map[reflowTime:6.988 source:map[column:2996 line:0 type:source-location url:https://assets.twitch.tv/assets/57621-813bb4d691c65c0d03cf.js urlProvider:network]] map[reflowTime:2.563 source:map[column:43523 line:0 type:source-location url:https://assets.twitch.tv/assets/50866-60c020e8677f73a9b71a.js urlProvider:network]] map[reflowTime:10.728 source:map[column:6934 line:0 type:source-location url:https://assets.twitch.tv/assets/79058-307ba85d09ac48f03d14.js urlProvider:network]] map[reflowTime:1.846 source:map[column:44688 line:0 type:source-location url:https://assets.twitch.tv/assets/50866-60c020e8677f73a9b71a.js urlProvider:network]] map[reflowTime:22.412 source:map[column:2114 line:0 type:source-location url:https://assets.twitch.tv/assets/57621-813bb4d691c65c0d03cf.js urlProvider:network]] map[reflowTime:6.2 source:map[column:460040 line:0 type:source-location url:https://assets.twitch.tv/assets/74689-31992a1990c65430ed20.js urlProvider:network]] map[reflowTime:15.221 source:map[column:293692 line:0 type:source-location url:https://assets.twitch.tv/assets/player-core-variant-a-ff7c48ae575eb92518ff.js urlProvider:network]] map[reflowTime:0.744 source:map[column:289 line:2 type:source-location url: urlProvider:network]] map[reflowTime:0.786 source:map[column:289 line:2 type:source-location url: urlProvider:network]] map[reflowTime:3.264 source:map[column:31 line:2 type:source-location url: urlProvider:network]] map[reflowTime:2.512 source:map[column:31 line:2 type:source-location url: 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
HIGHLIGHTS: SPIRIT vs XTREME - ESL One Birmingham 2026 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/previews-ttv/live_user_esl_dota2-640x360.jpg	60.9 KiB	49.8 KiB
[460/730] 🐥 early bird gets the worm 🐥 40 streamer valorant tourney @ 5 et 🐥 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/previews-ttv/live_user_jynxzi-640x360.jpg	46.6 KiB	35.6 KiB
🟢 REACTS -> SOLO TO RADIANT -> WINNING JYNXZI'S VALORANT TOURNAMENT 🟢 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/previews-ttv/live_user_mooda-640x360.jpg	45.9 KiB	34.8 KiB
yapping + clearing hotp backlogs \| !socials !support !watchthis `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/previews-ttv/live_user_psychedeliacy-640x360.jpg	45.4 KiB	34.4 KiB
[DROPS] OWCS 2026 \| NA/EMEA \| Stage 1 Week 3 Day 1 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/previews-ttv/live_user_ow_esports-640x360.jpg	43.9 KiB	32.8 KiB
🔴REACTING MRBEAST'S $1M STREAMER CHALLENGE🔴 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/previews-ttv/live_user_ohnepixel-640x360.jpg	36.9 KiB	26.1 KiB
EsthonX Avatar `div.Layout-sc-1xcs6mc-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/13357a20-699e-4f73-8f29-8e63d715ca85-p...	26.2 KiB	25.8 KiB
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_bikerush-320x180.jpg	21.3 KiB	11.9 KiB
a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/04c65db8-ef62-4fb5-8cff-09f0521de151-p...	12.0 KiB	11.8 KiB
a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/c2b85c38-cfdc-4c87-9c5b-80a6dcd2c4f5-p...	10.5 KiB	10.4 KiB
Overwatch cover image `div.ScTransitionBase-sc-hx4quq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/ttv-boxart/515025-188x250.jpg	16.5 KiB	10.3 KiB
League of Legends cover image `div.ScTransitionBase-sc-hx4quq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/ttv-boxart/21779-188x250.jpg	16.4 KiB	10.2 KiB
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_tomovids-320x180.jpg	19.5 KiB	10.2 KiB
a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/fe17c146-00ae-4e90-9c39-75fe40163cd5-p...	9.6 KiB	9.5 KiB
VALORANT cover image `div.ScTransitionBase-sc-hx4quq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/ttv-boxart/516575-188x250.jpg	15.4 KiB	9.2 KiB
a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/5742b015-e6ed-4f7c-a1dd-87cd88fe1eb9-p...	9.1 KiB	9.0 KiB
a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/483a37ac-58fd-4e2f-8dc3-2c68a0164112-p...	8.4 KiB	8.2 KiB
a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/e086d0a4-781d-49d6-9732-2d8f9516f9c0-p...	8.0 KiB	7.9 KiB
Broadcasting a Co-Stream `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/b532ac95-4050-42cb-9d5d-9666a243654c-p...	7.9 KiB	7.8 KiB
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_esthonx-320x180.jpg	17.1 KiB	7.7 KiB
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_150k-320x180.jpg	16.9 KiB	7.5 KiB
CoolCat `div.Layout-sc-1xcs6mc-0 > div.Layout-sc-1xcs6mc-0 > div.Layout-sc-1xcs6mc-0 > img.tw-image`	assets.twitch.tv/assets/coolcat-edacb6fbd813ce2f0272.png	7.6 KiB	7.4 KiB
a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/3313f669-483c-4f60-bab4-c6e37bae2ecd-p...	7.3 KiB	7.2 KiB
Just Chatting cover image `div.ScTransitionBase-sc-hx4quq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/ttv-boxart/509658-188x250.jpg	13.2 KiB	7.0 KiB
Counter-Strike cover image `div.ScTransitionBase-sc-hx4quq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/ttv-boxart/32399-188x250.jpg	13.1 KiB	7.0 KiB
Dota 2 cover image `div.ScTransitionBase-sc-hx4quq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image`	static-cdn.jtvnw.net/ttv-boxart/29595-188x250.jpg	12.5 KiB	6.3 KiB
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_allshifted-320x180.jpg	14.5 KiB	5.1 KiB
psychedeliacy `a.ScCoreLink-sc-16kq0mq-0 > div.ScAspectRatio-sc-18km980-1 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/8657d231-d382-4f5a-80bb-373c616281f1-p...	5.3 KiB	5.0 KiB
ohnePixel `a.ScCoreLink-sc-16kq0mq-0 > div.ScAspectRatio-sc-18km980-1 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/5742b015-e6ed-4f7c-a1dd-87cd88fe1eb9-p...	5.0 KiB	4.8 KiB
https://assets.twitch.tv/assets/An-AmazonCompanyBlack-e5a905ee39488e6a10cf.png `section#front-page-main-content > div.Layout-sc-1xcs6mc-0 > div.Layout-sc-1xcs6mc-0 > img.tw-image`	assets.twitch.tv/assets/An-AmazonCompanyBlack-e5a905ee39488e6a10cf.png	5.0 KiB	4.6 KiB
ow_esports is Broadcasting a Co-Stream `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/b532ac95-4050-42cb-9d5d-9666a243654c-p...	4.8 KiB	4.5 KiB
ESL_DOTA2 `a.ScCoreLink-sc-16kq0mq-0 > div.ScAspectRatio-sc-18km980-1 > div.ScAvatar-sc-144b42z-0 > img.InjectLayout-sc-1i43xsx-0`	/jtv_user_pictures/3313f669-483c-4f60-bab4-c6e37bae2ecd-p...	4.4 KiB	4.2 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

items: [map[duration:137.003 label:Time to first byte subpart:timeToFirstByte] map[duration:2552.735 label:Resource load delay subpart:resourceLoadDelay] map[duration:182.094 label:Resource load duration subpart:resourceLoadDuration] map[duration:123.785 label:Element render delay subpart:elementRenderDelay]]

lhId: page-1-IMG

nodeLabel: [460/730] 🐥 early bird gets the worm 🐥 40 streamer valorant tourney @ 5 et 🐥

path: 1,HTML,1,BODY,0,DIV,0,DIV,0,DIV,1,DIV,1,MAIN,1,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,ARTICLE,1,DIV,4,DIV,0,A,0,DIV,0,DIV,1,IMG

selector: a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image

snippet: <img alt="[460/730] 🐥 early bird gets the worm 🐥 40 streamer valorant tourney @ 5 et…" class="tw-image" src="https://static-cdn.jtvnw.net/previews-ttv/live_user_jynxzi-640x360.jpg">

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-1-IMG

nodeLabel: [460/730] 🐥 early bird gets the worm 🐥 40 streamer valorant tourney @ 5 et 🐥

selector: a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > div.ScAspectRatio-sc-18km980-1 > img.tw-image

snippet: <img alt="[460/730] 🐥 early bird gets the worm 🐥 40 streamer valorant tourney @ 5 et…" class="tw-image" src="https://static-cdn.jtvnw.net/previews-ttv/live_user_jynxzi-640x360.jpg">

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

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
assets.twitch.tv/assets/Roobert-Medium-050c71a0449f34eb9cd3.woff2	15 ms
assets.twitch.tv/assets/Roobert-Regular-2b0345b049d46f67090f.woff2	15 ms
/assets/inter-latin-variable-wghtOnly-normal-a05a0d687a08...	10 ms
assets.twitch.tv/assets/Roobert-SemiBold-2c9de19c87721c9bcb39.woff2	5.0 ms

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 160 ms 412.6 KiB

URL	Transfer Size	Est Savings
assets.twitch.tv/assets/core-1edde0c6a7157d1aac77.js	176.5 KiB	92.4 KiB
assets.twitch.tv/assets/2433-0b949759e40ba0e099da.js	248.9 KiB	77.4 KiB
assets.twitch.tv/assets/player-core-variant-a-ff7c48ae575eb92518ff.js	86.3 KiB	54.5 KiB
assets.twitch.tv/assets/74689-31992a1990c65430ed20.js	137.2 KiB	53.0 KiB
assets.twitch.tv/assets/flags-ff62b41fa1a6ed5b8694.js	58.2 KiB	37.8 KiB
assets.twitch.tv/assets/91615-f0fa9c8855d6ef2ba74e.js	124.5 KiB	28.2 KiB
assets.twitch.tv/assets/25470-77f4b1da089a04c0b255.js	32.9 KiB	25.4 KiB
assets.twitch.tv/assets/features.whispers-22f96a93fa867720ba45.js	26.5 KiB	23.2 KiB
assets.twitch.tv/assets/88480-bd7265781dc8ec200b3e.js	23.6 KiB	20.7 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
assets.twitch.tv/assets/2433-0b949759e40ba0e099da.js	2.7 s	2.3 s	35 ms
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	817 ms	746 ms	18 ms
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	773 ms	709 ms	15 ms
Unattributable	702 ms	181 ms	0.5 ms
www.twitch.tv/	644 ms	12 ms	7.0 ms
assets.twitch.tv/assets/core-1edde0c6a7157d1aac77.js	392 ms	363 ms	29 ms
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	261 ms	254 ms	4.3 ms
assets.twitch.tv/assets/player-core-variant-a-ff7c48ae575eb92518ff.js	219 ms	146 ms	12 ms
assets.twitch.tv/assets/91615-f0fa9c8855d6ef2ba74e.js	101 ms	79 ms	17 ms
assets.twitch.tv/assets/57621-813bb4d691c65c0d03cf.js	62 ms	11 ms	1.4 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	5.0 s
Other	916 ms
Style & Layout	452 ms
Script Parsing & Compilation	313 ms
Rendering	177 ms
Garbage Collection	155 ms
Parse HTML & CSS	29 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
Pages with WebSocket cannot enter back/forward cache.	Pending browser support

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 2.5 KiB

URL	Transfer Size	Est Savings
html, body, div, span, applet, object, iframe, h1, h2, h3...	40.8 KiB	2.5 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: 0.0 ms 29.1 KiB

URL	Transfer Size	Est Savings
html, body, div, span, applet, object, iframe, h1, h2, h3...	40.8 KiB	29.1 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
/v1/segment/Cu4CKo5rV3Yfgl5YRVAcv8Tw2WynqcuqXGzU2BIorew0Z...	881.3 KiB
/v1/segment/Cu4COcqGyEDnu5BG6vRs9X0BrJPIWArUXxnMjxkKAOxnR...	839.5 KiB
/v1/segment/Cu4CE36C7tqD7vh3xDJAD9MTaEG7pVKdwXQyrJSfAQcz-...	838.5 KiB
/v1/segment/Cu4CHfIsHZCRQ434LNAESXu7HTI0xeiwkzcIX4DunULyF...	837.5 KiB
assets.twitch.tv/assets/amazon-ivs-wasmworker.min-1a79658ef60acaf084c7.wasm	387.7 KiB
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	252.7 KiB
assets.twitch.tv/assets/2433-0b949759e40ba0e099da.js	248.9 KiB
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	243.5 KiB
assets.twitch.tv/assets/core-1edde0c6a7157d1aac77.js	176.5 KiB
/v1/segment/Ct4C69AfGxWQnr5R9GpBmNGqgTr4OR9ZghSPAwvQDqL_X...	174.6 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
https://assets.twitch.tv/assets/An-AmazonCompanyBlack-e5a905ee39488e6a10cf.png `section#front-page-main-content > div.Layout-sc-1xcs6mc-0 > div.Layout-sc-1xcs6mc-0 > img.tw-image`	assets.twitch.tv/assets/An-AmazonCompanyBlack-e5a905ee39488e6a10cf.png

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

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Minify JavaScript

●User Timing marks and measures 2 user timings

●Avoid long main-thread tasks 17 long tasks found

●Network Requests

●Network Round Trip Times 240 ms

●Server Backend Latencies 450 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 30 ms

●Avoid large layout shifts 1 layout shift found

○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

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > iframe#amznidpxl `body > iframe#amznidpxl`

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
HIGHLIGHTS: SPIRIT vs XTREME - ESL One Birmingham 2026 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > button.ScCoreLink-sc-16kq0mq-0 > h4.CoreText-sc-1txzju1-0`
🔴REACTING MRBEAST'S $1M STREAMER CHALLENGE🔴 `a.ScCoreLink-sc-16kq0mq-0 > div.Layout-sc-1xcs6mc-0 > button.ScCoreLink-sc-16kq0mq-0 > h4.CoreText-sc-1txzju1-0`

These are opportunities to improve keyboard navigation in your application.

Best practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Dota 2 `div.Layout-sc-1xcs6mc-0 > div.ScTextWrapper-sc-10mto54-1 > p.CoreText-sc-1txzju1-0 > a.ScCoreLink-sc-16kq0mq-0`
Just Chatting `div.Layout-sc-1xcs6mc-0 > div.ScTextWrapper-sc-10mto54-1 > p.CoreText-sc-1txzju1-0 > a.ScCoreLink-sc-16kq0mq-0`
Overwatch `div.Layout-sc-1xcs6mc-0 > div.ScTextWrapper-sc-10mto54-1 > p.CoreText-sc-1txzju1-0 > a.ScCoreLink-sc-16kq0mq-0`

These items highlight common accessibility best practices.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
HIGHLIGHTS: SPIRIT vs XTREME - ESL One Birmingham 2026 ESL_DOTA2 `div.Layout-sc-1xcs6mc-0 > div.Layout-sc-1xcs6mc-0 > div.ScTextWrapper-sc-10mto54-1 > a.ScCoreLink-sc-16kq0mq-0`
[460/730] 🐥 early bird gets the worm 🐥 40 streamer valorant tourney @ 5 et 🐥 J… `div.Layout-sc-1xcs6mc-0 > div.Layout-sc-1xcs6mc-0 > div.ScTextWrapper-sc-10mto54-1 > a.ScCoreLink-sc-16kq0mq-0`
Main Broadcast: [DROPS] OWCS 2026 \| NA/EMEA \| Stage 1 Week 3 Day 1 ow_esports `div.Layout-sc-1xcs6mc-0 > div.ScTextWrapper-sc-10mto54-1 > div.Layout-sc-1xcs6mc-0 > a.ScCoreLink-sc-16kq0mq-0`

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

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

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●Form elements have associated labels

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

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

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

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

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

●Links are distinguishable without relying on color.

●Links have a discernible name

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

●Document has a main landmark.

●Deprecated ARIA roles were not used

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

●Identical links have the same purpose.

○`[accesskey]` values are unique

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

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○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">`

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

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

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

○`[lang]` attributes have a valid value

○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 display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_allshifted-320x180.jpg	750 x 300 (2.50)	320 x 180 (1.78)
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_tomovids-320x180.jpg	750 x 300 (2.50)	320 x 180 (1.78)
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_esthonx-320x180.jpg	750 x 300 (2.50)	320 x 180 (1.78)
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_150k-320x180.jpg	750 x 300 (2.50)	320 x 180 (1.78)
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_bikerush-320x180.jpg	750 x 300 (2.50)	320 x 180 (1.78)

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
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_150k-320x180.jpg	750 x 300	320 x 180	750 x 300
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_allshifted-320x180.jpg	750 x 300	320 x 180	750 x 300
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_bikerush-320x180.jpg	750 x 300	320 x 180	750 x 300
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_esthonx-320x180.jpg	750 x 300	320 x 180	750 x 300
div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0 `div > div.featured-content-carousel-featured-item > div.Layout-sc-1xcs6mc-0 > img.InjectLayout-sc-1i43xsx-0`	static-cdn.jtvnw.net/previews-ttv/live_user_tomovids-320x180.jpg	750 x 300	320 x 180	750 x 300

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.	assets.twitch.tv/assets/74689-31992a1990c65430ed20.js
SharedStorage	line 2, col 31

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
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	`Failed to load resource: the server responded with a status of 429 ()`
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	`Failed to load resource: the server responded with a status of 429 (Too Many Requests)`

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
assets.twitch.tv/assets/core-1edde0c6a7157d1aac77.js
assets.twitch.tv/assets/91615-f0fa9c8855d6ef2ba74e.js
assets.twitch.tv/assets/74689-31992a1990c65430ed20.js
assets.twitch.tv/assets/2433-0b949759e40ba0e099da.js

●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

●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

100

SEO

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

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`