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
www.uw.edu.pl/wp-content/uploads/2025/03/telefon-zaufania-uw-1024x724.png	0.0 ms	522.7 KiB
/wp-content/uploads/2026/04/wiosna-z-hr-excellence-in-res...	0.0 ms	349.1 KiB
www.uw.edu.pl/wp-content/uploads/2026/02/zdjecie_wyrozniajace_610x405_idub.jpg	0.0 ms	164.2 KiB
www.uw.edu.pl/wp-content/uploads/2024/10/otwarte-czwartki-610x405.png	0.0 ms	159.8 KiB
www.uw.edu.pl/wp-content/uploads/2023/06/idub_logo-1024x459.png	0.0 ms	148.4 KiB
/wp-content/uploads/2026/04/wiosna-z-hr-excellence-in-res...	0.0 ms	131.0 KiB
/wp-content/uploads/2014/01/krakowskie-przedmiescie-dawna...	0.0 ms	128.7 KiB
/wp-content/uploads/2025/11/4-glowy_twoja-glowa_twoja-sil...	0.0 ms	123.7 KiB
www.uw.edu.pl/wp-content/uploads/2025/05/czuwanie_18052025_043-960x465.jpg	0.0 ms	116.8 KiB
www.uw.edu.pl/wp-content/uploads/2026/04/dzien_otwarty_18042026_147-960x465.jpg	0.0 ms	110.1 KiB
www.uw.edu.pl/wp-content/uploads/2017/07/logo-2-11.png	0.0 ms	107.5 KiB
www.uw.edu.pl/wp-content/uploads/2020/11/wsparcie-uw-kafelek-1-1024x760.jpg	0.0 ms	102.8 KiB
www.uw.edu.pl/wp-content/themes/uw/library/js/main.min.js?15032024	0.0 ms	102.1 KiB
/wp-content/uploads/2026/04/nawa_spotkanie_z_ministrem_sz...	0.0 ms	93.7 KiB
/wp-content/uploads/2023/04/sesja_studencka_2022_dzien_1_...	0.0 ms	89.7 KiB
/wp-content/uploads/2023/11/obiekty_uw_049_©uniwersytet_...	0.0 ms	81.0 KiB
www.uw.edu.pl/wp-content/uploads/2019/10/uw_wrzesien_2019_final-2-610x405.jpg	0.0 ms	80.9 KiB
www.uw.edu.pl/wp-content/uploads/2026/04/plakat-610x405.jpg	0.0 ms	79.6 KiB
www.uw.edu.pl/wp-content/uploads/2026/04/msd-polska-4-610x405.jpg	0.0 ms	75.7 KiB
www.uw.edu.pl/wp-content/uploads/2023/04/zonkile-610x405.jpg	0.0 ms	75.3 KiB
/wp-content/uploads/2019/10/brama-uw-09.2019-fot.-m.-kazm...	0.0 ms	72.6 KiB
www.uw.edu.pl/wp-content/themes/uw/library/img/main_section_bg.png	0.0 ms	72.4 KiB
www.uw.edu.pl/wp-content/uploads/2026/04/sns-scaled-610x405.jpg	0.0 ms	61.8 KiB
www.uw.edu.pl/wp-content/uploads/2026/04/zrzut-ekranu-2026-04-17-o-18.06.26.jpg	0.0 ms	61.6 KiB
/wp-content/uploads/2026/04/fake-busters.-fot.-krystian-s...	0.0 ms	51.3 KiB
/wp-content/uploads/2026/04/konferencja_erasmus_koordynat...	0.0 ms	50.5 KiB
www.uw.edu.pl/wp-content/uploads/2026/04/heurystyki-2026-1-610x405.jpg	0.0 ms	49.5 KiB
www.uw.edu.pl/wp-content/themes/uw/library/css/main.css?15032024	0.0 ms	47.3 KiB
/wp-content/uploads/2026/04/zrzut-ekranu-2026-04-17-o-18....	0.0 ms	42.0 KiB
www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js	0.0 ms	41.9 KiB
www.uw.edu.pl/wp-content/uploads/2025/02/ikonka_alarm-1024x568.jpg	0.0 ms	38.0 KiB
www.uw.edu.pl/wp-content/uploads/2026/04/ales-bialacki-7-610x405.jpg	0.0 ms	33.2 KiB
www.uw.edu.pl/wp-content/uploads/2022/03/hr-excellence.jpg	0.0 ms	31.5 KiB
www.uw.edu.pl/wp-content/uploads/2026/02/topmarka2025_green-1024x359.jpg	0.0 ms	31.5 KiB
www.uw.edu.pl/wp-content/uploads/2019/03/logo_duze.png	0.0 ms	28.7 KiB
www.uw.edu.pl/wp-content/uploads/2024/09/komunikaty-1024x576.jpg	0.0 ms	25.2 KiB
www.uw.edu.pl/wp-content/themes/uw/library/js/scripts.js?15032024	0.0 ms	25.0 KiB
/wp-content/uploads/2022/11/04_znak_podstawowy_mono_ciemn...	0.0 ms	15.9 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
www.uw.edu.pl/wp-includes/js/thickbox/loadingAnimation.gif	0.0 ms	15.2 KiB
www.uw.edu.pl/wp-content/uploads/2017/07/logo_krasp1.png	0.0 ms	12.6 KiB
www.uw.edu.pl/wp-content/uploads/2021/09/logo_idub.png	0.0 ms	12.4 KiB
www.uw.edu.pl/wp-content/uploads/2019/02/logo_4eu_rgb.png	0.0 ms	11.7 KiB
www.uw.edu.pl/wp-content/plugins/page-links-to/dist/new-tab.js	0.0 ms	10.9 KiB
www.uw.edu.pl/wp-content/uploads/2017/07/logo_eaec1.png	0.0 ms	10.1 KiB
/wp-content/uploads/2024/07/znak_kpo_poziom_web_linie2-e1...	0.0 ms	9.2 KiB
www.uw.edu.pl/wp-content/uploads/2017/07/logo_unica1.png	0.0 ms	8.8 KiB
/wp-content/uploads/2019/08/eu-flag-erasmus_vect_pos-bw-e...	0.0 ms	8.2 KiB
www.uw.edu.pl/wp-content/uploads/2017/07/logo_excellence1.png	0.0 ms	7.7 KiB
/wp-content/uploads/2024/07/fe_dla_rozwoju_spolecznego_we...	0.0 ms	7.6 KiB
www.uw.edu.pl/wp-content/themes/uw/library/js/libs/modernizr.custom.min.js	0.0 ms	7.4 KiB
/wp-content/uploads/2024/07/fe_dla_nowoczesnej_gospodarki...	0.0 ms	7.3 KiB
/wp-content/plugins/cookie-law-info/public/js/cookie-law-...	0.0 ms	7.1 KiB
www.uw.edu.pl/wp-content/themes/uw/library/img/flag_pl.png	0.0 ms	7.0 KiB
www.uw.edu.pl/wp-content/uploads/2025/12/feniks_kontra-1.png	0.0 ms	6.8 KiB
ml314.com/taglw.aspx?223	3600.0 s	8.5 KiB
/wp-content/plugins/cookie-law-info/public/css/cookie-law...	0.0 ms	6.3 KiB
www.uw.edu.pl/wp-includes/js/wp-emoji-release.min.js	0.0 ms	5.5 KiB
www.uw.edu.pl/wp-includes/js/thickbox/thickbox.js	0.0 ms	5.3 KiB
commerce-js.sovrn.co/commerce-js.iife.js	604800.0 s	49.5 KiB
www.uw.edu.pl/wp-content/themes/uw/library/img/flaga_UE_pl_2024.png	0.0 ms	4.4 KiB
cdn.shareaholic.net/assets/pub/shareaholic.js	1200.0 s	4.7 KiB
www.uw.edu.pl/wp-content/themes/uw/library/js/wcag.js	0.0 ms	3.0 KiB
cdn.viglink.com/api/vglnk.js	604800.0 s	29.1 KiB
www.uw.edu.pl/wp-content/themes/uw/library/css/custom-pi.css?15032024	0.0 ms	2.8 KiB
www.uw.edu.pl/wp-content/themes/uw/library/js/what-input.min.js	0.0 ms	2.4 KiB
www.uw.edu.pl/wp-content/plugins/newsletter/subscription/style.css	0.0 ms	1.9 KiB
www.uw.edu.pl/wp-content/themes/uw/library/js/class/class.Core.js?15032024	0.0 ms	1.8 KiB
www.uw.edu.pl/wp-includes/js/thickbox/thickbox.css	0.0 ms	1.4 KiB
comparisons.sovrn.com/js/loader.min.js	0.0 ms	1.4 KiB
www.uw.edu.pl/wp-content/themes/uw/library/img/arrow_right.png	0.0 ms	1.4 KiB
www.uw.edu.pl/wp-content/themes/uw/library/img/arrow_left.png	0.0 ms	1.4 KiB
www.uw.edu.pl/wp-content/themes/uw/library/fonts/icomoon.woff	0.0 ms	1.4 KiB
/wp-content/plugins/cookie-law-info/public/css/cookie-law...	0.0 ms	1.3 KiB
www.uw.edu.pl/wp-content/themes/uw/library/img/event_bg.png	0.0 ms	1.3 KiB
www.uw.edu.pl/wp-content/themes/uw/library/img/event_date_box_bg.png	0.0 ms	1.3 KiB
www.uw.edu.pl/wp-includes/js/wp-embed.min.js	0.0 ms	1.2 KiB
cdn.tynt.com/afsh.js	259200.0 s	5.5 KiB
www.uw.edu.pl/wp-content/plugins/sitemap/css/page-list.css	0.0 ms	1.0 KiB
www.uw.edu.pl/wp-content/themes/uw/library/img/bip.png	0.0 ms	916 B
www.uw.edu.pl/wp-content/plugins/newsletter/subscription/validate.js	0.0 ms	797 B
um.simpli.fi/empty.gif	0.0 ms	560 B
www.uw.edu.pl/wp-content/themes/uw/library/img/mini_arrow_r.png	0.0 ms	513 B
commerce-js.sovrn.co/commerce-js.css	604800.0 s	4.8 KiB
px.owneriq.net/stas/s/sholic.js	0.0 ms	475 B
/idsync/ex/receive/check?partner_id=2305&partner_device_i...	0.0 ms	426 B
/syncMe?partnerDomain=simpli.fi&idType=cookie&partnerUser...	0.0 ms	385 B
ps.eyeota.net/match/bounce/?bid=irm51m1&uid=9B9D970F04874B639629554FBF553379	0.0 ms	354 B
cs.media.net/cksync.php?cs=1&type=bs&ovsid=&gdpr=&gdpr_consent=&gpp=	0.0 ms	315 B
sb.scorecardresearch.com/p2?c1=7&c2=19376307&c3=1&cv=3.6.0&cj=1	0.0 ms	300 B
/track/cmb/generic?ttd_pid=tapad&ttd_tpi=1&ttd_puid=8956d...	0.0 ms	254 B
simplifi.partners.tremorhub.com/sync?UISF=E14B84003B1746B896DC8C71BB24E13B	0.0 ms	175 B
/signal/v1/page_view?data_source_key=Gg1Si3AkcN&ip=92.38....	0.0 ms	94 B
ml314.com/csync.ashx?fp=1463862978181596060&person_id=3660580291361112067&eid=2	86386.0 s	56 B
ml314.com/csync.ashx?fp=&person_id=3660580291361112067&eid=50082	86386.0 s	56 B
ml314.com/csync.ashx?fp=963352066793956375&person_id=3660580291361112068&eid=2	86386.0 s	56 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
www.uw.edu.pl/wp-content/themes/uw/library/fonts/icomoon.woff	160 ms
/font-awesome/4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0	20 ms
/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTSGmu...	10 ms
/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...	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:38.074 source:map[column:640 line:4 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.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:8.769 source:map[column:30882 line:3 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js urlProvider:network]] map[reflowTime:0.22 source:map[column:30979 line:3 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js urlProvider:network]] map[reflowTime:0.195 source:map[column:31260 line:3 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js urlProvider:network]] map[reflowTime:0.041 source:map[column:31351 line:3 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js urlProvider:network]] map[reflowTime:0.113 source:map[column:31632 line:3 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js urlProvider:network]] map[reflowTime:0.163 source:map[column:31782 line:3 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js urlProvider:network]] map[reflowTime:0.189 source:map[column:31900 line:3 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js urlProvider:network]] map[reflowTime:4.91 source:map[column:3774 line:5 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js urlProvider:network]] map[reflowTime:19.964 source:map[column:5688 line:5 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js urlProvider:network]] map[reflowTime:0.647 source:map[column:24 line:1257 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/main.min.js?15032024 urlProvider:network]] map[reflowTime:2.767 source:map[column:3796 line:5 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js urlProvider:network]] map[reflowTime:0.096 source:map[column:51 line:3050 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/scripts.js?15032024 urlProvider:network]] map[reflowTime:1.405 source:map[column:27 line:442 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/main.min.js?15032024 urlProvider:network]] map[reflowTime:1.09 source:map[column:44 line:367 type:source-location url:https://www.uw.edu.pl/wp-content/themes/uw/library/js/main.min.js?15032024 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
div.grid-news-item > div.block > a.block > div.image `div.grid-news-item > div.block > a.block > div.image`	/wp-content/uploads/2026/04/wiosna-z-hr-excellence-in-res...	348.7 KiB	308.5 KiB
Logo Uniwersytet Warszawski - strona główna `section.mid-bar > div.logo > a > img`	www.uw.edu.pl/wp-content/uploads/2017/07/logo-2-11.png	107.2 KiB	97.0 KiB
div.grid-news-item > div.block > a.block > div.image `div.grid-news-item > div.block > a.block > div.image`	/wp-content/uploads/2014/01/krakowskie-przedmiescie-dawna...	128.3 KiB	88.1 KiB
div.items > div.slider-item > a > p.block `div.items > div.slider-item > a > p.block`	/wp-content/uploads/2026/04/wiosna-z-hr-excellence-in-res...	130.7 KiB	58.0 KiB
div.grid-news-item > div.block > a.block > div.image `div.grid-news-item > div.block > a.block > div.image`	/wp-content/uploads/2026/04/nawa_spotkanie_z_ministrem_sz...	93.3 KiB	53.1 KiB
div.items > div.slider-item > a > p.block `div.items > div.slider-item > a > p.block`	www.uw.edu.pl/wp-content/uploads/2025/05/czuwanie_18052025_043-960x465.jpg	116.5 KiB	43.8 KiB
div.grid-news-item > div.block > a.block > div.image `div.grid-news-item > div.block > a.block > div.image`	/wp-content/uploads/2023/11/obiekty_uw_049_©uniwersytet_...	80.7 KiB	40.5 KiB
div.grid-news-item > div.block > a.block > div.image `div.grid-news-item > div.block > a.block > div.image`	www.uw.edu.pl/wp-content/uploads/2019/10/uw_wrzesien_2019_final-2-610x405.jpg	80.6 KiB	40.4 KiB
div.items > div.slider-item > a > p.block `div.items > div.slider-item > a > p.block`	www.uw.edu.pl/wp-content/uploads/2026/04/dzien_otwarty_18042026_147-960x465.jpg	109.7 KiB	37.1 KiB
div.grid-news-item > div.block > a.block > div.image `div.grid-news-item > div.block > a.block > div.image`	www.uw.edu.pl/wp-content/uploads/2026/04/msd-polska-4-610x405.jpg	75.4 KiB	35.1 KiB
div.grid-news-item > div.block > a.block > div.image `div.grid-news-item > div.block > a.block > div.image`	www.uw.edu.pl/wp-content/uploads/2023/04/zonkile-610x405.jpg	75.0 KiB	34.8 KiB
Aktualności Dzień rektorski 4 maja Zgodnie z decyzją prof. Alojzego Z. Nowaka,… `div.main-wrapper > main.body > section.body-content > section.uni-box`	www.uw.edu.pl/wp-content/themes/uw/library/img/main_section_bg.png	72.1 KiB	34.0 KiB
div.grid-news-item > div.block > a.block > div.image `div.grid-news-item > div.block > a.block > div.image`	/wp-content/uploads/2019/10/brama-uw-09.2019-fot.-m.-kazm...	72.3 KiB	32.1 KiB
div.grid-news-item > div.block > a.block > div.image `div.grid-news-item > div.block > a.block > div.image`	/wp-content/uploads/2026/04/fake-busters.-fot.-krystian-s...	51.0 KiB	10.8 KiB
div.grid-news-item > div.block > a.block > div.image `div.grid-news-item > div.block > a.block > div.image`	/wp-content/uploads/2026/04/konferencja_erasmus_koordynat...	50.2 KiB	10.0 KiB
Program wieloletni Uniwersytetu Warszawskiego 2016-2027 `section.top-bar > div.top-flags > span > img`	www.uw.edu.pl/wp-content/themes/uw/library/img/flag_pl.png	6.7 KiB	5.8 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:1985.324 label:Time to first byte subpart:timeToFirstByte] map[duration:1398.387 label:Resource load delay subpart:resourceLoadDelay] map[duration:3648.211 label:Resource load duration subpart:resourceLoadDuration] map[duration:14.821 label:Element render delay subpart:elementRenderDelay]]

lhId: page-8-P

nodeLabel: div.items > div.slider-item > a > p.block

path: 5,HTML,2,BODY,8,DIV,2,MAIN,0,SECTION,0,DIV,0,DIV,1,A,1,P

selector: div.items > div.slider-item > a > p.block

snippet: <p class="block slide-link" style="background-image: url("https://www.uw.edu.pl/wp-content/uploads/2026/04/dzi…");">

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-8-P

nodeLabel: div.items > div.slider-item > a > p.block

path: 5,HTML,2,BODY,8,DIV,2,MAIN,0,SECTION,0,DIV,0,DIV,1,A,1,P

selector: div.items > div.slider-item > a > p.block

snippet: <p class="block slide-link" style="background-image: url("https://www.uw.edu.pl/wp-content/uploads/2026/04/dzi…");">

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
www.uw.edu.pl/	http/1.1
/wp-content/plugins/cookie-law-info/public/css/cookie-law...	http/1.1
/wp-content/plugins/cookie-law-info/public/css/cookie-law...	http/1.1
www.uw.edu.pl/wp-content/plugins/sitemap/css/page-list.css	http/1.1
www.uw.edu.pl/wp-includes/js/thickbox/thickbox.css	http/1.1
www.uw.edu.pl/wp-content/plugins/newsletter/subscription/style.css	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/css/main.css?15032024	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/css/custom-pi.css?15032024	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js	http/1.1
/wp-content/plugins/cookie-law-info/public/js/cookie-law-...	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/js/wcag.js	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/js/what-input.min.js	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/js/libs/modernizr.custom.min.js	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/js/main.min.js?15032024	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/js/class/class.Core.js?15032024	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/img/flag_pl.png	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/img/flaga_UE_pl_2024.png	http/1.1
www.uw.edu.pl/wp-content/uploads/2017/07/logo-2-11.png	http/1.1
www.uw.edu.pl/wp-content/uploads/2025/02/ikonka_alarm-1024x568.jpg	http/1.1
www.uw.edu.pl/wp-content/uploads/2024/09/komunikaty-1024x576.jpg	http/1.1
www.uw.edu.pl/wp-content/uploads/2026/02/zdjecie_wyrozniajace_610x405_idub.jpg	http/1.1
/wp-content/uploads/2025/11/4-glowy_twoja-glowa_twoja-sil...	http/1.1
www.uw.edu.pl/wp-content/uploads/2025/03/telefon-zaufania-uw-1024x724.png	http/1.1
www.uw.edu.pl/wp-content/uploads/2019/02/logo_4eu_rgb.png	http/1.1
www.uw.edu.pl/wp-content/uploads/2023/06/idub_logo-1024x459.png	http/1.1
www.uw.edu.pl/wp-content/uploads/2020/11/wsparcie-uw-kafelek-1-1024x760.jpg	http/1.1
www.uw.edu.pl/wp-content/uploads/2026/04/zrzut-ekranu-2026-04-17-o-18.06.26.jpg	http/1.1
www.uw.edu.pl/wp-content/uploads/2022/03/hr-excellence.jpg	http/1.1
www.uw.edu.pl/wp-content/uploads/2026/02/topmarka2025_green-1024x359.jpg	http/1.1
www.uw.edu.pl/wp-includes/js/wp-emoji-release.min.js	http/1.1
www.uw.edu.pl/wp-content/uploads/2017/07/logo_excellence1.png	http/1.1
www.uw.edu.pl/wp-content/uploads/2021/09/logo_idub.png	http/1.1
www.uw.edu.pl/wp-content/uploads/2019/03/logo_duze.png	http/1.1
/wp-content/uploads/2019/08/eu-flag-erasmus_vect_pos-bw-e...	http/1.1
www.uw.edu.pl/wp-content/uploads/2017/07/logo_krasp1.png	http/1.1
www.uw.edu.pl/wp-content/uploads/2017/07/logo_unica1.png	http/1.1
www.uw.edu.pl/wp-content/uploads/2017/07/logo_eaec1.png	http/1.1
/wp-content/uploads/2022/11/04_znak_podstawowy_mono_ciemn...	http/1.1
/wp-content/uploads/2024/07/fe_dla_nowoczesnej_gospodarki...	http/1.1
/wp-content/uploads/2024/07/fe_dla_rozwoju_spolecznego_we...	http/1.1
/wp-content/uploads/2024/07/znak_kpo_poziom_web_linie2-e1...	http/1.1
www.uw.edu.pl/wp-content/uploads/2025/12/feniks_kontra-1.png	http/1.1
www.uw.edu.pl/wp-includes/js/thickbox/thickbox.js	http/1.1
www.uw.edu.pl/wp-content/plugins/page-links-to/dist/new-tab.js	http/1.1
www.uw.edu.pl/wp-content/plugins/newsletter/subscription/validate.js	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/js/scripts.js?15032024	http/1.1
www.uw.edu.pl/wp-includes/js/wp-embed.min.js	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/fonts/icomoon.woff	http/1.1
www.uw.edu.pl/wp-content/uploads/2026/04/dzien_otwarty_18042026_147-960x465.jpg	http/1.1
/wp-content/uploads/2026/04/wiosna-z-hr-excellence-in-res...	http/1.1
www.uw.edu.pl/wp-content/uploads/2025/05/czuwanie_18052025_043-960x465.jpg	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/img/main_section_bg.png	http/1.1
/wp-content/uploads/2019/10/brama-uw-09.2019-fot.-m.-kazm...	http/1.1
www.uw.edu.pl/wp-content/uploads/2026/04/msd-polska-4-610x405.jpg	http/1.1
/wp-content/uploads/2014/01/krakowskie-przedmiescie-dawna...	http/1.1
www.uw.edu.pl/wp-content/uploads/2019/10/uw_wrzesien_2019_final-2-610x405.jpg	http/1.1
www.uw.edu.pl/wp-content/uploads/2026/04/ales-bialacki-7-610x405.jpg	http/1.1
/wp-content/uploads/2026/04/fake-busters.-fot.-krystian-s...	http/1.1
/wp-content/uploads/2023/11/obiekty_uw_049_©uniwersytet_...	http/1.1
/wp-content/uploads/2026/04/nawa_spotkanie_z_ministrem_sz...	http/1.1
/wp-content/uploads/2026/04/konferencja_erasmus_koordynat...	http/1.1
/wp-content/uploads/2026/04/wiosna-z-hr-excellence-in-res...	http/1.1
www.uw.edu.pl/wp-content/uploads/2023/04/zonkile-610x405.jpg	http/1.1
/wp-content/uploads/2026/04/zrzut-ekranu-2026-04-17-o-18....	http/1.1
www.uw.edu.pl/wp-content/uploads/2026/04/heurystyki-2026-1-610x405.jpg	http/1.1
www.uw.edu.pl/wp-content/uploads/2024/10/otwarte-czwartki-610x405.png	http/1.1
www.uw.edu.pl/wp-content/uploads/2026/04/sns-scaled-610x405.jpg	http/1.1
/wp-content/uploads/2023/04/sesja_studencka_2022_dzien_1_...	http/1.1
www.uw.edu.pl/wp-content/uploads/2026/04/plakat-610x405.jpg	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/img/mini_arrow_r.png	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/img/event_bg.png	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/img/event_date_box_bg.png	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/img/bip.png	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/img/arrow_left.png	http/1.1
www.uw.edu.pl/wp-content/themes/uw/library/img/arrow_right.png	http/1.1
www.uw.edu.pl/wp-includes/js/thickbox/loadingAnimation.gif	http/1.1
www.uw.edu.pl/wp-content/themes/uw/favicon.png	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
www.uw.edu.pl/wp-content/themes/uw/library/js/main.min.js?15032024	102.1 KiB	2.4 s
www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js	41.9 KiB	2.4 s
www.uw.edu.pl/wp-content/themes/uw/library/css/main.css?15032024	47.3 KiB	2.7 s
www.uw.edu.pl/wp-content/themes/uw/library/js/class/class.Core.js?15032024	1.8 KiB	915 ms
www.uw.edu.pl/wp-content/themes/uw/library/js/libs/modernizr.custom.min.js	7.4 KiB	1.2 s
www.uw.edu.pl/wp-content/themes/uw/library/js/what-input.min.js	2.4 KiB	915 ms
/wp-content/plugins/cookie-law-info/public/js/cookie-law-...	7.1 KiB	1.2 s
www.uw.edu.pl/wp-content/themes/uw/library/js/wcag.js	3.0 KiB	915 ms
www.uw.edu.pl/wp-content/themes/uw/library/css/custom-pi.css?15032024	2.8 KiB	915 ms
www.uw.edu.pl/wp-content/plugins/newsletter/subscription/style.css	1.9 KiB	915 ms
www.uw.edu.pl/wp-includes/js/thickbox/thickbox.css	1.4 KiB	915 ms
www.uw.edu.pl/wp-content/plugins/sitemap/css/page-list.css	1.0 KiB	915 ms
/wp-content/plugins/cookie-law-info/public/css/cookie-law...	6.3 KiB	1.2 s
/wp-content/plugins/cookie-law-info/public/css/cookie-law...	1.3 KiB	310 ms
fonts.googleapis.com/css?family=Open+Sans:300,400,600,700&subset=latin-ext	2.3 KiB	825 ms
ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.css	8.5 KiB	1.1 s
ajax.googleapis.com/ajax/libs/angularjs/1.0.1/angular.min.js	28.7 KiB	1.4 s
maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css	7.4 KiB	1.1 s
cdnjs.cloudflare.com/ajax/libs/jquery-mousewheel/3.0.6/jquery.mousewheel.min.js	1.2 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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: 1.2 s

URL	Time Spent
uw.edu.pl/	1.2 s
www.uw.edu.pl/	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.

Diagnostics

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: 190 ms 40.7 KiB

URL	Transfer Size	Est Savings
www.uw.edu.pl/wp-content/themes/uw/library/js/main.min.js?15032024	101.7 KiB	31.0 KiB
www.uw.edu.pl/wp-content/themes/uw/library/js/scripts.js?15032024	24.6 KiB	9.6 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: 240 ms 40.7 KiB

URL	Transfer Size	Est Savings
www.uw.edu.pl/wp-content/themes/uw/library/css/main.css?15032024	46.9 KiB	40.7 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: 1.4 s 194.8 KiB

URL	Transfer Size	Est Savings
www.uw.edu.pl/wp-content/themes/uw/library/js/main.min.js?15032024	101.7 KiB	74.9 KiB
www.googletagmanager.com/gtag/js?id=G-B37WHT4SG8&cx=c&_slc=1	147.5 KiB	64.2 KiB
commerce-js.sovrn.co/commerce-js.iife.js	49.1 KiB	30.3 KiB
ajax.googleapis.com/ajax/libs/angularjs/1.0.1/angular.min.js	28.6 KiB	25.4 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
Unattributable	1.3 s	89 ms	0.0 ms
www.uw.edu.pl/	1.1 s	156 ms	11 ms
www.uw.edu.pl/wp-content/themes/uw/library/js/main.min.js?15032024	789 ms	228 ms	44 ms
www.uw.edu.pl/wp-content/themes/uw/library/js/jquery/jquery-1.10.2.min.js	643 ms	447 ms	18 ms
cdn.viglink.com/api/vglnk.js	434 ms	358 ms	15 ms
cdn.openshareweb.com/v2/71c6eb22/main.js	358 ms	318 ms	16 ms
www.googletagmanager.com/gtag/js?id=G-B37WHT4SG8&cx=c&_slc=1	256 ms	192 ms	62 ms
commerce-js.sovrn.co/commerce-js.iife.js	142 ms	123 ms	19 ms
cdn.shareaholic.net/assets/pub/shareaholic.js	117 ms	95 ms	2.6 ms
www.google-analytics.com/analytics.js	112 ms	95 ms	5.1 ms
www.uw.edu.pl/wp-content/themes/uw/library/js/libs/modernizr.custom.min.js	109 ms	45 ms	1.9 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	2.4 s
Other	1.9 s
Style & Layout	873 ms
Script Parsing & Compilation	246 ms
Rendering	242 ms
Parse HTML & CSS	124 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
www.uw.edu.pl/wp-content/uploads/2025/03/telefon-zaufania-uw-1024x724.png	522.7 KiB
/wp-content/uploads/2026/04/wiosna-z-hr-excellence-in-res...	349.1 KiB
www.uw.edu.pl/wp-content/uploads/2026/02/zdjecie_wyrozniajace_610x405_idub.jpg	164.2 KiB
www.uw.edu.pl/wp-content/uploads/2024/10/otwarte-czwartki-610x405.png	159.8 KiB
www.uw.edu.pl/wp-content/uploads/2023/06/idub_logo-1024x459.png	148.4 KiB
www.googletagmanager.com/gtag/js?id=G-B37WHT4SG8&cx=c&_slc=1	147.8 KiB
/wp-content/uploads/2026/04/wiosna-z-hr-excellence-in-res...	131.0 KiB
/wp-content/uploads/2014/01/krakowskie-przedmiescie-dawna...	128.7 KiB
/wp-content/uploads/2025/11/4-glowy_twoja-glowa_twoja-sil...	123.7 KiB
www.uw.edu.pl/wp-content/uploads/2025/05/czuwanie_18052025_043-960x465.jpg	116.8 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.inner > div.right-column-banner > a > img `div.inner > div.right-column-banner > a > img`	/wp-content/uploads/2025/11/4-glowy_twoja-glowa_twoja-sil...
div.inner > div.right-column-banner > a > img `div.inner > div.right-column-banner > a > img`	www.uw.edu.pl/wp-content/uploads/2020/11/wsparcie-uw-kafelek-1-1024x760.jpg
div.inner > div.right-column-banner > a > img `div.inner > div.right-column-banner > a > img`	www.uw.edu.pl/wp-content/uploads/2025/03/telefon-zaufania-uw-1024x724.png
div.inner > div.right-column-banner > a > img `div.inner > div.right-column-banner > a > img`	www.uw.edu.pl/wp-content/uploads/2024/09/komunikaty-1024x576.jpg
div.inner > div.right-column-banner > a > img `div.inner > div.right-column-banner > a > img`	www.uw.edu.pl/wp-content/uploads/2025/02/ikonka_alarm-1024x568.jpg
div.inner > div.right-column-banner > a.no-link-icon > img `div.inner > div.right-column-banner > a.no-link-icon > img`	www.uw.edu.pl/wp-content/uploads/2026/04/zrzut-ekranu-2026-04-17-o-18.06.26.jpg
div.inner > div.right-column-banner > a > img `div.inner > div.right-column-banner > a > img`	www.uw.edu.pl/wp-content/uploads/2023/06/idub_logo-1024x459.png
div.inner > div.right-column-banner > a > img `div.inner > div.right-column-banner > a > img`	www.uw.edu.pl/wp-content/uploads/2026/02/topmarka2025_green-1024x359.jpg
div.inner > div.right-column-banner > a > img `div.inner > div.right-column-banner > a > img`	www.uw.edu.pl/wp-content/uploads/2019/02/logo_4eu_rgb.png
div.inner > div.right-column-banner > a > img `div.inner > div.right-column-banner > a > img`	www.uw.edu.pl/wp-content/uploads/2026/02/zdjecie_wyrozniajace_610x405_idub.jpg
div.inner > div.right-column-banner > a > img `div.inner > div.right-column-banner > a > img`	www.uw.edu.pl/wp-content/uploads/2022/03/hr-excellence.jpg
Logo Uniwersytet Warszawski - strona główna `section.mid-bar > div.logo > a > img`	www.uw.edu.pl/wp-content/uploads/2017/07/logo-2-11.png
Program wieloletni Uniwersytetu Warszawskiego 2016-2027 `section.top-bar > div.top-flags > span > img`	www.uw.edu.pl/wp-content/themes/uw/library/img/flag_pl.png
Fundusze europejskie - Programy ramowe Unii Europejskiej `section.top-bar > div.top-flags > a > img`	www.uw.edu.pl/wp-content/themes/uw/library/img/flaga_UE_pl_2024.png

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

●Layout shift culprits

●Optimize DOM size

●Optimize viewport for mobile

●Minify CSS

●User Timing marks and measures 6 user timings

●Avoid long main-thread tasks 18 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 150 ms

●Server Backend Latencies 80 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 560 ms

○INP breakdown

○Avoid non-composited animations

○Avoid large layout shifts

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

When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about input field labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
18 06 2026 Improwiz – kurs improwizacji teatralnej… 24 06 2026 Posiedzenie Sena… `div.mCSB_container > div.events > div.slick-list > div.slick-track`

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
REKRUTACJA `div.menu-column-right > ul#menu-stopka-prawa-kolumna > li#menu-item-41715 > a`
PRACA NA UW `div.menu-column-right > ul#menu-stopka-prawa-kolumna > li#menu-item-52198 > a`
MUZEUM UW `div.menu-column-right > ul#menu-stopka-prawa-kolumna > li#menu-item-85301 > a`
ZWIEDZANIE KAMPUSU `div.menu-column-right > ul#menu-stopka-prawa-kolumna > li#menu-item-41684 > a`
PISMO UCZELNI `div.menu-column-right > ul#menu-stopka-prawa-kolumna > li#menu-item-41685 > a`
DEKLARACJA DOSTĘPNOŚCI `div.menu-column-right > ul#menu-stopka-prawa-kolumna > li#menu-item-83095 > a`
ZAPISZ SIĘ DO NEWSLETTERA `div.inner > div.spacer > div.inner > a.newsletter-button`
Czytaj więcej o plikach „cookies” `body.home > div#cookie-law-info-bar > span > a#CONSTANT_OPEN_URL`
Akceptuję `body.home > div#cookie-law-info-bar > span > a#CONSTANT_OPEN_URL`

These are opportunities to improve the legibility of your content.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.spacer > div.inner > div.right-column-banner > a `div.spacer > div.inner > div.right-column-banner > a`
div.spacer > div.inner > div.right-column-banner > a `div.spacer > div.inner > div.right-column-banner > a`
div.spacer > div.inner > div.right-column-banner > a `div.spacer > div.inner > div.right-column-banner > a`
div.spacer > div.inner > div.right-column-banner > a `div.spacer > div.inner > div.right-column-banner > a`
div.spacer > div.inner > div.right-column-banner > a `div.spacer > div.inner > div.right-column-banner > a`
div.spacer > div.inner > div.right-column-banner > a `div.spacer > div.inner > div.right-column-banner > a`
div.spacer > div.inner > div.right-column-banner > a `div.spacer > div.inner > div.right-column-banner > a`
div.spacer > div.inner > div.right-column-banner > a `div.spacer > div.inner > div.right-column-banner > a`
div.spacer > div.inner > div.right-column-banner > a.no-link-icon `div.spacer > div.inner > div.right-column-banner > a.no-link-icon`
div.spacer > div.inner > div.right-column-banner > a `div.spacer > div.inner > div.right-column-banner > a`
div.spacer > div.inner > div.right-column-banner > a `div.spacer > div.inner > div.right-column-banner > a`

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.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Na skróty Uniwersytet Kształcenie Badania Współpraca Student Doktorant Pracowni… `section.top-bar > div.menu-mobile > div#menu-mobile > ul.dl-menu`

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

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
Pliki "cookies" `div.copyright > div.copy > span.copy-item > a`
Mapa strony `div.copyright > div.copy > span.copy-item > a`
Redakcja `div.copyright > div.copy > span.copy-item > a`

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

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

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

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

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

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

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

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

●`[role]` values are valid

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

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●`[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

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

●Elements use only permitted ARIA attributes

●ARIA toggle fields have accessible names

●Document has a `<title>` element

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

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

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

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

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

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

○ARIA `treeitem` elements have accessible names

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

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

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

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

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

○Input buttons have discernible text.

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

○Form elements have associated labels

○Links are distinguishable without relying on color.

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

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

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

○`[lang]` attributes have a valid value

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

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

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

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

○Identical links have the same purpose.

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

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

Best Practices

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
/map/ct=y/c=9193/tp=SHLC/tpid=6daff9f7-9aba-42a0-8922-e3b...	`Failed to load resource: the server responded with a status of 400 ()`

●Uses HTTPS

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

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

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

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

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

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
div.cli-row > div.cli-col-12 > div.cli-privacy-overview > a.cli-privacy-readmore `div.cli-row > div.cli-col-12 > div.cli-privacy-overview > a.cli-privacy-readmore`

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

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Page has successful HTTP status code

●Links have descriptive text

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`