https://ine.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:0.100263] map[node:map[boundingRect:map[bottom:3921 height:3726 left:35 right:1315 top:195 width:1280] lhId:page-1-MAIN nodeLabel:INE- Instituto Nacional de Estadística. España
49.570.725
Habitantes
3,4
IP… path:1,HTML,1,BODY,0,DIV,3,MAIN selector:body > div.contenedor > main snippet:<main> type:node] score:0.099015 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:136 height:121 left:45 right:361 top:15 width:316] lhId:page-11-IMG nodeLabel:SIGLAS Instituto Nacional de Estadística path:1,HTML,1,BODY,0,DIV,1,HEADER,0,DIV,0,DIV,0,A,0,IMG selector:div.flex-block-left-auto > div.ImagenLogoIne > a > img snippet:<img src="/menus/_b/img/LogoINE.svg" alt="SIGLAS Instituto Nacional de Estadística"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:308 height:100 left:377 right:480 top:208 width:103] lhId:page-7-IMG nodeLabel:ul.image-links > li > a > img.image path:1,HTML,1,BODY,0,DIV,3,MAIN,1,SECTION,1,DIV,0,NAV,0,UL,1,LI,0,A,0,IMG selector:ul.image-links > li > a > img.image snippet:<img class="image" src="/menus/plantillas/dynT3/img/CatGrp/2350.svg" alt=""> type:node] score:0.000499 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:308 height:100 left:377 right:480 top:208 width:103] lhId:page-7-IMG nodeLabel:ul.image-links > li > a > img.image path:1,HTML,1,BODY,0,DIV,3,MAIN,1,SECTION,1,DIV,0,NAV,0,UL,1,LI,0,A,0,IMG selector:ul.image-links > li > a > img.image snippet:<img class="image" src="/menus/plantillas/dynT3/img/CatGrp/2350.svg" alt=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:308 height:100 left:870 right:973 top:208 width:103] lhId:page-9-IMG nodeLabel:ul.image-links > li > a > img.image path:1,HTML,1,BODY,0,DIV,3,MAIN,1,SECTION,1,DIV,0,NAV,0,UL,3,LI,0,A,0,IMG selector:ul.image-links > li > a > img.image snippet:<img class="image" src="/menus/plantillas/dynT3/img/CatGrp/2359.svg" alt=""> type:node] score:0.000499 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:308 height:100 left:870 right:973 top:208 width:103] lhId:page-9-IMG nodeLabel:ul.image-links > li > a > img.image path:1,HTML,1,BODY,0,DIV,3,MAIN,1,SECTION,1,DIV,0,NAV,0,UL,3,LI,0,A,0,IMG selector:ul.image-links > li > a > img.image snippet:<img class="image" src="/menus/plantillas/dynT3/img/CatGrp/2359.svg" alt=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:308 height:100 left:130 right:233 top:208 width:103] lhId:page-6-IMG nodeLabel:ul.image-links > li > a > img.image path:1,HTML,1,BODY,0,DIV,3,MAIN,1,SECTION,1,DIV,0,NAV,0,UL,0,LI,0,A,0,IMG selector:ul.image-links > li > a > img.image snippet:<img class="image" src="/menus/plantillas/dynT3/img/CatGrp/2349.svg" alt=""> type:node] score:0.00025 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:308 height:100 left:130 right:233 top:208 width:103] lhId:page-6-IMG nodeLabel:ul.image-links > li > a > img.image path:1,HTML,1,BODY,0,DIV,3,MAIN,1,SECTION,1,DIV,0,NAV,0,UL,0,LI,0,A,0,IMG selector:ul.image-links > li > a > img.image snippet:<img class="image" src="/menus/plantillas/dynT3/img/CatGrp/2349.svg" alt=""> type:node]]] type:subitems]]]
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 |
|---|---|
| ine.es/menus/_b/fonts/ineicons/fonts/INEIcons.ttf?i5i0i5 | 210 ms |
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: div.carrouselGallery > article.contenEnlace > figure > img
path: 1,HTML,1,BODY,0,DIV,3,MAIN,3,SECTION,1,DIV,0,DIV,1,ARTICLE,0,FIGURE,0,IMG
selector: div.carrouselGallery > article.contenEnlace > figure > img
snippet: <img alt="" src="/GS_FILES/aviso_indice_101.jpg">
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 |
|---|---|---|
| ine.es/menus/plantillas/raizweb/home/css/SeccPrensa.css?id=96&id=104c | 2.5 KiB | 249 ms |
| ine.es/menus/_b/js/component/ine.js?L=0 | 31.1 KiB | 495 ms |
| ine.es/menus/_b/js/general.js?L=0&chars=UTF-8 | 12.2 KiB | 249 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 | |
|---|---|---|---|
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/aviso_espacif_2026.PNG | 91.6 KiB | 82.0 KiB |
Potal de transparencia li > div.padding_00rem > a > img | ine.es/images/home/img_Transparencia_carrusel.png | 43.7 KiB | 39.2 KiB |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/aviso_indice_101.jpg | 36.0 KiB | 26.4 KiB |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_cumple.png | 19.3 KiB | 14.1 KiB |
imagen la CNAE li > div.padding_04rem > a > img | ine.es/images/home/CNAE2025_carrusel.png | 15.5 KiB | 12.0 KiB |
Acceso a las Infografías section#divulgacion > article > a > img | ine.es/images/home/infografias.jpg | 21.8 KiB | 11.6 KiB |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_atlas_renta_hogares.jpg | 16.3 KiB | 11.2 KiB |
Inventario de Operaciones Estadísticas li > div > a > img | ine.es/images/home/logo_IOE.png | 12.8 KiB | 8.4 KiB |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_turismo.jpg | 11.8 KiB | 6.7 KiB |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_ods.jpg | 11.3 KiB | 6.2 KiB |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_nom_naci.jpg | 10.9 KiB | 5.8 KiB |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_defunciones.jpg | 9.4 KiB | 4.3 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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 |
|---|---|
INE- Instituto Nacional de Estadística. España
49.570.725
Habitantes
3,4
IP… body > div.contenedor > main | 0.099 |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | 0.000 |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | 0.000 |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | 0.000 |
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Why this matters
Performance issues directly impact user engagement and conversion rates.
TTI
Diagnostics
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Estimated savings: 0.0 ms 9.8 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| ine.es/menus/_b/css/base.css?vnew=0 | 17.9 KiB | 4.8 KiB |
| /menus/_b/css/component/components.css?L=0&crrsl=1&ilp=1&... | 13.6 KiB | 2.8 KiB |
| ine.es/menus/_b/css/nav.css | 6.1 KiB | 2.3 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 24.7 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| ine.es/menus/_b/js/component/ine.js?L=0 | 30.8 KiB | 12.0 KiB |
| /menus/_b/js/component/components.js?L=0&crrsl=1&ilp=1&pn... | 25.4 KiB | 7.4 KiB |
| ine.es/menus/_b/js/general.js?L=0&chars=UTF-8 | 11.9 KiB | 2.7 KiB |
| ine.es/menus/_b/js/consul.js?l=es | 15.1 KiB | 2.6 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: 0.0 ms 28.2 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| ine.es/menus/_b/css/base.css?vnew=0 | 17.6 KiB | 15.9 KiB |
| /menus/_b/css/component/components.css?L=0&crrsl=1&ilp=1&... | 13.3 KiB | 12.3 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Why this matters
Performance issues directly impact user engagement and conversion rates.
Estimated savings: 0.0 ms 128.0 KiB
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtag/js?id=G-ZDRRXGDE71&cx=c>m=4e64k1h1 | 151.4 KiB | 64.9 KiB |
| www.googletagmanager.com/gtag/js?id=UA-19028967-1 | 116.4 KiB | 63.1 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 | |
|---|---|
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/raizweb/home/img/tema_1254735976620.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/raizweb/home/img/tema_1254735570567.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/raizweb/home/img/tema_1254735976151.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/raizweb/home/img/tema_1254734710984.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/raizweb/home/img/tema_1254735570541.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/raizweb/home/img/tema_1254735570688.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/raizweb/home/img/tema_1254735570703.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/raizweb/home/img/tema_1254735971047.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/raizweb/home/img/tema_1254735976604.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/raizweb/home/img/tema_1254735976594.svg |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/GS_FILES/img_IPC_renta-lazy.png |
Acceso a las Infografías section#divulgacion > article > a > img | ine.es/images/home/infografias.jpg |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_territoriales-lazy.jpg |
section#aplicaciones > article.margen_sup10 > a.td > img.ancho_cien section#aplicaciones > article.margen_sup10 > a.td > img.ancho_cien | ine.es/images/home/apli_habitantes-lazy.jpg |
SIGLAS Instituto Nacional de Estadística div.flex-block-left-auto > div.ImagenLogoIne > a > img | ine.es/menus/_b/img/LogoINE.svg |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_cumple.png |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_ods.jpg |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_flujos.jpg |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_defunciones.jpg |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_nom_naci.jpg |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_atlas_renta_hogares.jpg |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/apli_turismo.jpg |
Logo IRIA ul.flexwrap > li.centrar_hori > a > img | ine.es/images/home/iria.png |
section#aplicaciones > article.margen_sup10 > a.td > img.ancho_cien section#aplicaciones > article.margen_sup10 > a.td > img.ancho_cien | ine.es/images/home/img_nombres-lazy.png |
section#aplicaciones > article.margen_sup10 > a > img.ancho_cien section#aplicaciones > article.margen_sup10 > a > img.ancho_cien | ine.es/images/home/piramide_h.png |
imagen de las infografías de ODS li > div.padding_04rem > a > img | ine.es/images/home/carrusel_ods_1.png |
Magazine Spanish Journal of Statistics section#divulgacion > article > a > img.bloque | ine.es/images/home/logoycurvas.png |
Inventario de Operaciones Estadísticas li > div > a > img | ine.es/images/home/logo_IOE.png |
Potal de transparencia li > div.padding_00rem > a > img | ine.es/images/home/img_Transparencia_carrusel.png |
ES_DataLab li > div > a > img | ine.es/images/home/Logo-ES_DataLab.svg |
imagen de la competición estadística europea li > div.padding_04rem > a > img | ine.es/images/home/carrusel_esc_ganadores_fase_nacional.jpg |
Boletín de noticias del Instituto Nacional de Estadística section#divulgacion > article > a > img.bloque | ine.es/images/home/masine.png |
imagen la CNAE li > div.padding_04rem > a > img | ine.es/images/home/CNAE2025_carrusel.png |
Explica section#divulgacion > article > a > img.bloque | ine.es/images/home/explica.png |
Revista Indice section#divulgacion > article > a > img | ine.es/images/home/revista_indice.png |
Icono Youtube div.embed-responsive > a.media-youtube > div.ico > img | ine.es/menus/_b/img/youtube_social_icon_red.gif |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/dynT3/img/CatGrp/2349.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/dynT3/img/CatGrp/2350.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/dynT3/img/CatGrp/2351.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/dynT3/img/CatGrp/2359.svg |
ul.image-links > li > a > img.image ul.image-links > li > a > img.image | ine.es/menus/plantillas/dynT3/img/CatGrp/2353.svg |
ICal div.contenedor > div.titulo > a > img | ine.es/menus/js/calendario/calen.gif |
More information about the performance of your application. These numbers don't directly affect the Performance score.
●Document request latency
●Optimize DOM size
●Forced reflow
●LCP breakdown
●Optimize viewport for mobile
●Max Potential First Input Delay 50 ms
●Avoids enormous network payloads Total size was 1,891 KiB
●User Timing marks and measures 5 user timings
●JavaScript execution time 0.3 s
●Minimizes main-thread work 1.0 s
●Avoid long main-thread tasks 1 long task found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 210 ms
●Server Backend Latencies 60 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 220 ms
○INP breakdown
○Avoid non-composited animations
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
●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
●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
●`[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
●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
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[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 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
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○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.
96
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.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/encuentro_productores.png | 336 x 176 (1.91) | 1920 x 1080 (1.78) |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/img_Elecc_AND_2026.png | 336 x 176 (1.91) | 404 x 180 (2.24) |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/img_premio_2025_carrusel.png | 336 x 176 (1.91) | 404 x 179 (2.26) |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/img_Logo_ODS_av.png | 336 x 176 (1.91) | 400 x 179 (2.23) |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/img_aviso_plan.png | 336 x 176 (1.91) | 340 x 200 (1.70) |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/calidad_2.gif | 336 x 176 (1.91) | 337 x 189 (1.78) |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/aviso_indice100.jpg | 336 x 176 (1.91) | 335 x 178 (1.88) |
div.carrouselGallery > article > figure > img div.carrouselGallery > article > figure > img | ine.es/GS_FILES/aviso_PEN_1.jpeg | 336 x 176 (1.91) | 340 x 170 (2.00) |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/aviso_API.jfif | 336 x 176 (1.91) | 340 x 170 (2.00) |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/img_aviso_becas.png | 336 x 176 (1.91) | 340 x 170 (2.00) |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/img_aviso_opo.png | 336 x 176 (1.91) | 340 x 170 (2.00) |
div.carrouselGallery > article.contenEnlace > figure > img div.carrouselGallery > article.contenEnlace > figure > img | ine.es/GS_FILES/logo_esc_opaco.png | 336 x 176 (1.91) | 376 x 147 (2.56) |
article.contenEnlace > header > figure > img.lazy article.contenEnlace > header > figure > img.lazy | ine.es/GS_FILES/img_EDES-lazy.png | 258 x 160 (1.61) | 254 x 160 (1.59) |
Imagen noticia article.contenEnlace > header > figure > img.lazy | ine.es/GS_FILES/img_EMN-lazy.png | 258 x 160 (1.61) | 254 x 160 (1.59) |
article.contenEnlace > header > figure > img.lazy article.contenEnlace > header > figure > img.lazy | ine.es/GS_FILES/img_ICNE-lazy.png | 258 x 160 (1.61) | 254 x 160 (1.59) |
article.contenEnlace > header > figure > img.lazy article.contenEnlace > header > figure > img.lazy | ine.es/GS_FILES/img_IPSS-lazy.png | 258 x 160 (1.61) | 254 x 160 (1.59) |
article.contenEnlace > header > figure > img.lazy article.contenEnlace > header > figure > img.lazy | ine.es/GS_FILES/img_IASS-lazy.png | 258 x 160 (1.61) | 254 x 160 (1.59) |
article.contenEnlace > header > figure > img.lazy article.contenEnlace > header > figure > img.lazy | ine.es/GS_FILES/img_ICN-lazy.png | 258 x 160 (1.61) | 254 x 160 (1.59) |
●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
●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
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Detected JavaScript libraries
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`