https://ugr.es
Lighthouse Desktop
· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.SCORE
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Detailed Report
Audit breakdown by category with detailed findings.
64
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.
Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.
Why this matters
Performance issues directly impact user engagement and conversion rates.
headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.282406] map[node:map[boundingRect:map[bottom:1027 height:358 left:90 right:1260 top:669 width:1170] lhId:page-6-DIV nodeLabel:Pause
21 Abr
La UGR imparte un seminario sobre Gemini
21 Abr
El proyecto Menoar… path:1,HTML,1,BODY,2,DIV,0,DIV,3,MAIN,1,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV selector:div.full-layout > div#second > div.block-region-second > div.views-element-container snippet:<div class="views-element-container block block-views block-views-blocknoticias-block-…"> type:node] score:0.280511 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:2808 height:126 left:90 right:224 top:2682 width:134] lhId:page-48-IMG nodeLabel:Universidad de Granada path:1,HTML,1,BODY,2,DIV,0,DIV,4,FOOTER,0,DIV,0,DIV,0,DIV,0,DIV,0,A,0,IMG selector:div#block-marcadelsitio > div.site-name > a.site-logo > img snippet:<img src="/themes/custom/ugr/logo-footer.svg" alt="Universidad de Granada"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:726 height:424 left:1691 right:2127 top:303 width:436] lhId:page-5-DIV nodeLabel:Convocatoria General de Becas MEC 2026-2027
Solicitudes: desde el 7 de abril ha… path:1,HTML,1,BODY,2,DIV,0,DIV,3,MAIN,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,2,DIV,0,DIV,2,DIV,0,DIV,0,DIV,1,DIV,0,DIV selector:div > div.views-row > div.views-field > div.field-content snippet:<div class="field-content"> type:node] score:0.00075 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:118 height:70 left:90 right:343 top:48 width:253] lhId:page-47-IMG nodeLabel:Universidad de Granada path:1,HTML,1,BODY,2,DIV,0,DIV,0,HEADER,1,DIV,1,DIV,0,DIV,0,DIV,0,A,0,IMG selector:div#block-subsite-branding > div.site-name > a.site-logo > img snippet:<img src="/themes/custom/ugr/ugr-horizontal-color.svg" alt="Universidad de Granada"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:40 height:40 left:865 right:1063 top:0 width:198] lhId:page-1-DIV nodeLabel:Buscar path:1,HTML,1,BODY,2,DIV,0,DIV,0,HEADER,0,DIV,0,DIV,2,DIV,0,FORM,0,DIV selector:div.region > div#block-ugr-search > form#search-block-form > div.js-form-item snippet:<div class="js-form-item form-item js-form-type-search form-type-search js-form-item-k…"> type:node] score:0.000569 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1173 height:72 left:400 right:674 top:1101 width:275] lhId:page-46-IMG nodeLabel:Acuerdos adoptados en Consejo de Gobierno ordinario del 10/04/2026 path:1,HTML,1,BODY,2,DIV,0,DIV,3,MAIN,1,DIV,0,DIV,1,DIV,0,DIV,2,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG selector:div.views-row > div.views-field > div.field-content > img snippet:<img src="/sites/default/files/comunicados-oficiales/banner-acuerdos-organos10042026…" width="232" height="61" alt="Acuerdos adoptados en Consejo de Gobierno ordinario del 10/04/2026" typeof="foaf:Image"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:940 height:88 left:0 right:1350 top:852 width:1350] lhId:page-11-DIV nodeLabel:Este portal web únicamente utiliza cookies con finalidad técnica, no recaba ni … path:1,HTML,1,BODY,9,DIV selector:body.layout-no-sidebars > div#sliding-popup snippet:<div id="sliding-popup" class="sliding-popup-bottom" style="height: auto; width: 100%; bottom: 0px;"> type:node] score:0.000149 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:921 height:100 left:1223 right:1323 top:821 width:100] lhId:page-49-IMG nodeLabel:Avatar chatbot path:1,HTML,1,BODY,0,DIV,a,#document-fragment,0,DIV,1,DIV,1,BUTTON,0,DIV,0,IMG selector:div.app-omb-avatar-main > button.app-omb-avatar-display > div.app-omb-avatar-container > img.app-omb-avatar-image snippet:<img data-v-043a348a="" src="https://storage.googleapis.com/1mb-images/62c53a978a2ea8f366347673/bots-av…" alt="Avatar chatbot" class="app-omb-avatar-image"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:940 height:88 left:0 right:1350 top:852 width:1350] lhId:page-11-DIV nodeLabel:Este portal web únicamente utiliza cookies con finalidad técnica, no recaba ni … path:1,HTML,1,BODY,9,DIV selector:body.layout-no-sidebars > div#sliding-popup snippet:<div id="sliding-popup" class="sliding-popup-bottom" style="height: auto; width: 100%; bottom: 0px;"> type:node] score:0.000123 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:921 height:100 left:1223 right:1323 top:821 width:100] lhId:page-49-IMG nodeLabel:Avatar chatbot path:1,HTML,1,BODY,0,DIV,a,#document-fragment,0,DIV,1,DIV,1,BUTTON,0,DIV,0,IMG selector:div.app-omb-avatar-main > button.app-omb-avatar-display > div.app-omb-avatar-container > img.app-omb-avatar-image snippet:<img data-v-043a348a="" src="https://storage.googleapis.com/1mb-images/62c53a978a2ea8f366347673/bots-av…" alt="Avatar chatbot" class="app-omb-avatar-image"> type:node]]] type:subitems]]]
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.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Why this matters
Performance issues directly impact user engagement and conversion rates.
lhId: page-0-IMG
nodeLabel: #FacultadTour
path: 1,HTML,1,BODY,2,DIV,0,DIV,3,MAIN,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,2,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,PICTURE,6,IMG
selector: div.views-field > div.field-content > picture > img
snippet: <img src="https://www.ugr.es/sites/default/files/styles/home_slider_1dpr_896_/public…" alt="#FacultadTour" typeof="foaf:Image">
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.
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 |
|---|---|---|
| /sites/default/files/js/js_WTVW5OyrPr8NSr1yuCI7nQh-zkpryU... | 85.0 KiB | 478 ms |
| /sites/default/files/css/css_RjiBtTpe3ER9je1oX0RA9qCeaJn-... | 79.6 KiB | 478 ms |
| fonts.googleapis.com/css?family=Lato:300,300i,400,400i,700,900|Montserrat | 1.2 KiB | 270 ms |
| www.ugr.es/core/assets/vendor/modernizr/modernizr.min.js?v=3.3.1 | 2.7 KiB | 313 ms |
| /sites/default/files/css/css_2BvQTYfQffFmuBrtS6ELHOqxjRnE... | 7.1 KiB | 204 ms |
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 | |
|---|---|---|---|
Banner infougr div.views-row > div.views-field > div.field-content > img | www.ugr.es/sites/default/files/comunicados-oficiales/banner-infougr.png | 7.2 MiB | 7.2 MiB |
varios iconos de redes sociales div.views-row > div.views-field > div.field-content > img | www.ugr.es/sites/default/files/comunicados-oficiales/Banner%20rrss%202.png | 66.9 KiB | 63.6 KiB |
‘Ciencia de repente’, serie de divulgación que lleva la investigación y el cono… div.views-row > div.views-field > div.field-content > img | www.ugr.es/sites/default/files/comunicados-oficiales/banner-sevidencia_0.jpg | 37.5 KiB | 34.3 KiB |
Avatar chatbot div.app-omb-avatar-main > button.app-omb-avatar-display > div.app-omb-avatar-container > img.app-omb-avatar-image | /1mb-images/62c53a978a2ea8f366347673/bots-avatar/16843124... | 31.6 KiB | 30.2 KiB |
‘La evidencia la da la ciencia div.views-row > div.views-field > div.field-content > img | www.ugr.es/sites/default/files/comunicados-oficiales/banner-sevidencia.jpg | 22.6 KiB | 19.4 KiB |
Acuerdos adoptados en Consejo de Gobierno ordinario del 10/04/2026 div.views-row > div.views-field > div.field-content > img | /sites/default/files/comunicados-oficiales/banner-acuerdo... | 20.1 KiB | 17.8 KiB |
Estudiantes por los paseillos universitarios en el campus de Fuentenueva article.media > div.field > picture > img | /sites/default/files/styles/home_destacado_1dpr_896/publi... | 18.4 KiB | 7.9 KiB |
MOOCs: oferta de formación abierta on line de la UGR div.views-row > div.views-field > div.field-content > img | www.ugr.es/sites/default/files/comunicados-oficiales/banner-moocs-ugr.jpg | 8.2 KiB | 5.3 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Diagnostics
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Estimated savings: 60 ms 65.1 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| /sites/default/files/css/css_RjiBtTpe3ER9je1oX0RA9qCeaJn-... | 78.9 KiB | 65.1 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: 250 ms 294.0 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| chat.1millionbot.com/app.js | 146.3 KiB | 66.8 KiB |
| www.googletagmanager.com/gtag/js?id=G-1VP321ZLLY&cx=c>m=4e64h1 | 155.6 KiB | 66.4 KiB |
| www.googletagmanager.com/gtag/js?id=UA-4060598-1 | 115.7 KiB | 62.9 KiB |
| /sites/default/files/js/js_WTVW5OyrPr8NSr1yuCI7nQh-zkpryU... | 84.4 KiB | 39.4 KiB |
| analiticasweb.ugr.es/matomo.js | 66.4 KiB | 37.4 KiB |
| static.addtoany.com/menu/modules/core.ydpp7jcu.js | 25.7 KiB | 21.0 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: 0.0 ms 6.4 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| /sites/default/files/js/js_7_96lEBAlquQIzl41OND0qeJKncV5j... | 17.9 KiB | 4.0 KiB |
| www.ugr.es/modules/contrib/eu_cookie_compliance/js/eu_cookie_compliance.js?v=1.9 | 8.1 KiB | 2.4 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.
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 | |
|---|---|
Logo Arqus alliance div.clearfix > p > a.arqus-logo > img | www.ugr.es/themes/custom/ugr/arqus-alliance.svg |
Elaboración de la Estrategia Impronta UGR div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_slider_1dpr_896_/public/... |
#FacultadTour div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_slider_1dpr_896_/public/... |
Convocatoria General de Becas MEC 2026-2027 div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_slider_1dpr_896_/public/... |
La UGR convoca los IV Premios a la Iniciativa en la Gestión del PTGAS div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_slider_1dpr_896_/public/... |
Elaboración de la Estrategia Impronta UGR div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_slider_1dpr_896_/public/... |
#FacultadTour div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_slider_1dpr_896_/public/... |
Convocatoria General de Becas MEC 2026-2027 div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_slider_1dpr_896_/public/... |
La UGR convoca los IV Premios a la Iniciativa en la Gestión del PTGAS div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_slider_1dpr_896_/public/... |
Elaboración de la Estrategia Impronta UGR div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_slider_1dpr_896_/public/... |
Universidad de Granada div#block-marcadelsitio > div.site-name > a.site-logo > img | www.ugr.es/themes/custom/ugr/logo-footer.svg |
Universidad de Granada div#block-subsite-branding > div.site-name > a.site-logo > img | www.ugr.es/themes/custom/ugr/ugr-horizontal-color.svg |
La UGR imparte un seminario sobre Gemini div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
El proyecto Menoara gana la cuarta edición del Premio Nacional TaleS div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
Identifican una variante genética asociada a la evolución del cáncer renal div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
La Facultad de Traducción e Interpretación celebra la festividad de su patrón, … div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
Ana Gallego Cuiñas, miembro del jurado del Premio Cervantes 2025 div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
Misión Técnica Internacional’ de la Unión Iberoamericana de Municipalistas div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
La UGR imparte un seminario sobre Gemini div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
El proyecto Menoara gana la cuarta edición del Premio Nacional TaleS div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
Identifican una variante genética asociada a la evolución del cáncer renal div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
La Facultad de Traducción e Interpretación celebra la festividad de su patrón, … div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
Ana Gallego Cuiñas, miembro del jurado del Premio Cervantes 2025 div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
Misión Técnica Internacional’ de la Unión Iberoamericana de Municipalistas div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
La UGR imparte un seminario sobre Gemini div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
El proyecto Menoara gana la cuarta edición del Premio Nacional TaleS div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
Identifican una variante genética asociada a la evolución del cáncer renal div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_noticia_1dpr_896_/public... |
Composición con texto e imagen div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_destacado_1dpr_896/publi... |
Investigadora div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_destacado_1dpr_896/publi... |
Un grupo de estudiantes div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_destacado_1dpr_896/publi... |
Texto junto a un arco div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_destacado_1dpr_896/publi... |
Grupo de niños div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_destacado_1dpr_896/publi... |
Grupo de personas y el texto ODS UGR div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_destacado_1dpr_896/publi... |
Estudiantes por los paseillos universitarios en el campus de Fuentenueva article.media > div.field > picture > img | /sites/default/files/styles/home_destacado_1dpr_896/publi... |
Patio del Hospital Real con fuente en el centro y puerta al fondo, a modo de rá… article.media > div.field > picture > img | /sites/default/files/styles/home_destacado_1dpr_896/publi... |
Logo Pacto Digital para la Protección de Las Personas div.logos-footer-block > div.logos-footer > a.pactodigital > img | www.ugr.es/themes/custom/ugr/pactodigital.svg |
Estrategia de RRHH para los investigadores div.logos-footer-block > div.logos-footer > a.excelencia-logo > img | www.ugr.es/themes/custom/ugr/excelencia.svg |
Logo Universidades Públicas de Andalucía div.logos-footer-block > div.logos-footer > a.aupa-logo > img | www.ugr.es/themes/custom/ugr/aupa.svg |
perros de paja div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_banners_1dpr_896_/public... |
logo presupuestos div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_banners_1dpr_896_/public... |
bioética logo div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_banners_1dpr_896_/public... |
semana eslovena logo div.views-field > div.field-content > picture > img | /sites/default/files/styles/home_banners_1dpr_896_/public... |
Logo Sello de Transparencia Universidades 2024 div.logos-footer-block > div.logos-footer > a.transparencia-logo > img | www.ugr.es/themes/custom/ugr/transparencia-universidades.svg |
Logo Universia div.logos-footer-block > div.logos-footer > a.excelencia-logo > img | www.ugr.es/themes/custom/ugr/universia.svg |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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: 244 ms
| URL | Time Spent |
|---|---|
| ugr.es/ | 244 ms |
| www.ugr.es/ | 0.0 ms |
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS
Why this matters
Performance issues directly impact user engagement and conversion rates.
| Element | Layout shift score |
|---|---|
Pause
21 Abr
La UGR imparte un seminario sobre Gemini
21 Abr
El proyecto Menoar… div.full-layout > div#second > div.block-region-second > div.views-element-container | 0.281 |
Convocatoria General de Becas MEC 2026-2027
Solicitudes: desde el 7 de abril ha… div > div.views-row > div.views-field > div.field-content | 0.001 |
Buscar div.region > div#block-ugr-search > form#search-block-form > div.js-form-item | 0.001 |
Este portal web únicamente utiliza cookies con finalidad técnica, no recaba ni … body.layout-no-sidebars > div#sliding-popup | 0.000 |
Este portal web únicamente utiliza cookies con finalidad técnica, no recaba ni … body.layout-no-sidebars > div#sliding-popup | 0.000 |
Este portal web únicamente utiliza cookies con finalidad técnica, no recaba ni … body.layout-no-sidebars > div#sliding-popup | 0.000 |
Buscar div.region > div#block-ugr-search > form#search-block-form > div.js-form-item | 0.000 |
Este portal web únicamente utiliza cookies con finalidad técnica, no recaba ni … body.layout-no-sidebars > div#sliding-popup | 0.000 |
Pause div > div.banda-derecha > div.view-content > button.slick-autoplay-toggle-button | 0.000 |
●Time to Interactive 2.4 s
●Optimize DOM size
●Forced reflow
●LCP breakdown
●Optimize viewport for mobile
●Max Potential First Input Delay 40 ms
●Minify CSS
●User Timing marks and measures 5 user timings
●JavaScript execution time 0.1 s
●Minimizes main-thread work 0.9 s
●Avoid non-composited animations 31 animated elements found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 20 ms
●Server Backend Latencies 150 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 50 ms
○INP breakdown
○Avoid long main-thread tasks
100
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.
○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
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●`[lang]` attributes have a valid value
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Uses ARIA roles only on compatible elements
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with 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
○`<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
○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.
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Image elements do not have `[alt]` attributes that are redundant text.
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
100
Best Practices
●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 browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●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
○Use a strong HSTS policy
○Mitigate clickjacking with XFO or CSP
92
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 |
|---|---|
| www.ugr.es/condiciones-legales | Más información |
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
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`