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.rts.ch/hbv7/resources/letterbox/v/3.37/letterbox.js	1469052.0 s	544.6 KiB
colibri-js.akamaized.net/penguin/tc_RTS_13.js	0.0 ms	36.2 KiB
static.chartbeat.com/js/chartbeat.js	7200.0 s	16.1 KiB
app.usercentrics.eu/browser-ui/latest/loader.js	3600.0 s	10.8 KiB
static.chartbeat.com/js/chartbeat_mab.js	7200.0 s	10.1 KiB
kingfisher.rts.ch/res/img/cdns3/sherlock/urn:orphea-image:347036?w=640&h=360	604800.0 s	64.3 KiB
kingfisher.rts.ch/res/img/cdns3/sherlock/urn:orphea-image:1945574?w=640&h=360	604800.0 s	34.1 KiB
www.rts.ch/hbv7/resources/letterbox/v/3.37/letterbox.css	1024277.0 s	30.6 KiB
app.usercentrics.eu/session/1px.png?settingsId=uMGC0cq2t	1800.0 s	817 B
www.rts.ch/hbv7/resources/fonts/rts-neue/rts-neue-var.v1.css	1365636.0 s	470 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.

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
SuisseTourisme lance une campagne pour sensibiliser les visiteurs étrangers à n… `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/ucfriu-29214095.image?w=640&h=1024	1.1 MiB	1.1 MiB
Patrouille des Glaciers: l'année des femmes. `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/nuiatw-29214923.image?w=640&h=1024	807.5 KiB	758.7 KiB
Est-ce qu'on va réussir à partir en vacances cet été face au risque de pénurie … `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/48ubop-29215046.image?w=640&h=1024	706.9 KiB	658.2 KiB
1-2.png `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/akbps9-29213187.image?w=640&h=1024	599.5 KiB	550.8 KiB
Un banc rouge contre les violences faites aux femmes a été inauguré à Carouge l… `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/m37ina-29213890.image?w=640&h=1024	224.2 KiB	175.5 KiB
707301740_highres.jpg [KEYSTONE - JON SUPER] `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/q9pnlt-29217444.image?w=640&h=1024	113.4 KiB	64.7 KiB
707612881_highres_.jpg `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/1b6pyx-29214257.image?w=640&h=1024	90.2 KiB	49.0 KiB
En Ouganda, la "guerre civile" des chimpanzés nous éclaire sur l'origine de nos… `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/fc85gj-29213911.image?w=640&h=1024	72.2 KiB	39.2 KiB
div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/medias/2026/image/fi2vtv-29219872.image?w=960&h=540	64.6 KiB	33.6 KiB
Les Simpson `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	kingfisher.rts.ch/res/img/cdns3/sherlock/urn:orphea-image:347036?w=640&h=360	63.9 KiB	26.4 KiB
Le conseil fédéral en séance extra-muros à Estavayer-le-Lac `a.rts-card > div.card-thumbnail > div.embed-responsive > img.embed-responsive-item`	img.rts.ch/medias/2026/image/vqhfs8-29219871.image?w=640&h=360	37.1 KiB	22.4 KiB
4 candidats pour succéder à Antonio Guterres à la tête de l'ONU `a.rts-card > div.card-thumbnail > div.embed-responsive > img.embed-responsive-item`	img.rts.ch/medias/2026/image/2vwqk-29219328.image?w=640&h=360	36.6 KiB	22.1 KiB
L'invitée de La Matinale (vidéo) - Mitra Sohrabi, avocate et présidente de l'as… `a.rts-card > div.card-thumbnail > div.embed-responsive > img.embed-responsive-item`	img.rts.ch/medias/2026/image/y4ido5-29217859.image?w=640&h=360	34.3 KiB	20.7 KiB
Régulation des banques d'importance systémique: analyse de Pierre Nebel `a.rts-card > div.card-thumbnail > div.embed-responsive > img.embed-responsive-item`	img.rts.ch/medias/2026/image/seoj2i-29219867.image?w=640&h=360	30.7 KiB	18.5 KiB
Baisser la voix `a.rts-card > div.card-thumbnail > div.embed-responsive > img.embed-responsive-item`	img.rts.ch/medias/2026/image/mndkxq-29216308.image?w=640&h=360	27.3 KiB	16.5 KiB
L'invité de La Matinale (vidéo) - Eric Bonvin, directeur général de l'Hôpital d… `a.rts-card > div.card-thumbnail > div.embed-responsive > img.embed-responsive-item`	img.rts.ch/medias/2026/image/a1kmkq-29218993.image?w=640&h=360	25.8 KiB	15.6 KiB
Nyon conserve son titre de fort belle manière. [KEYSTONE - JEAN-CHRISTOPHE BOTT] `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/rk42m0-29219961.image?w=320&h=240	26.4 KiB	13.9 KiB
Swiss Space Systems: le procès de Pascal Jaussi va bientôt s'ouvrir à Fribourg `a.rts-card > div.card-thumbnail > div.embed-responsive > img.embed-responsive-item`	img.rts.ch/medias/2026/image/h6dc37-29219877.image?w=640&h=360	22.5 KiB	13.6 KiB
Le parlement de la ville de Budapest. [TTstudio] `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/info/culture/2026/image/u3bnkf-29219318.image?w=640&h=360	46.5 KiB	9.0 KiB
La joie des Nyonnaises au moment de poser devant le trophée. [Keystone - Jean-C… `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/4h174c-29219947.image?w=320&h=180	16.8 KiB	7.4 KiB
Les années passent, mais Julien Sprunger (no86) reste décisif pour ses couleurs… `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/44b7kk-29219967.image?w=320&h=240	19.7 KiB	7.2 KiB
La joie des Nyonnaises au moment de poser devant le trophée. [Keystone - Jean-C… `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/4h174c-29219947.image?w=320&h=240	19.2 KiB	6.7 KiB
La vie dans la lagune d’Ancanacubi, P.gambensis et Ploceus sp. dans le Parc nat… `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2025/image/h7bz3-28942839.image?w=320&h=240	18.7 KiB	6.2 KiB

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

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

title: Preconnect candidates

value: No additional origins are good candidates for preconnecting

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.rts.ch/hbv7/static/css/web/frontpage-5a9750efa2f37a9f64e9540784053fab.css	12.2 KiB	151 ms
www.rts.ch/hbv7/static/css/rts-footer-dfecc29c486214dd6bbdc0d1fb212224.css	2.9 KiB
www.rts.ch/hbv7/resources/letterbox/v/3.37/letterbox.js	544.6 KiB	3.0 s
/hbv7/static/js/rts-transversal-header.min-0f4971c334f96e...	3.1 KiB
www.rts.ch/hbv7/static/js/hummingbird.min-6fe09d33e7b84266e412c71a514a2959.js	41.4 KiB	151 ms
/hbv7/static/js/rts-usercentrics.min-c880ac2ab0e033ab0f03...	6.2 KiB	151 ms
www.rts.ch/hbv7/resources/letterbox/v/3.37/letterbox.css	30.6 KiB	302 ms
www.rts.ch/hbv7/resources/fonts/rtsp/rtsp-v8.3-1/style.css	1.6 KiB
www.rts.ch/hbv7/resources/fonts/rts-neue/rts-neue-var.v1.css	470 B
cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js	27.4 KiB	1.1 s
cdnjs.cloudflare.com/ajax/libs/scrollup/2.4.1/jquery.scrollUp.min.js	1.4 KiB	774 ms

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.0 s

URL	Time Spent
rts.ch/	1.0 s
www.rts.ch/	0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

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: 150 ms 43.2 KiB

URL	Transfer Size	Est Savings
www.rts.ch/hbv7/resources/letterbox/v/3.37/letterbox.css	30.3 KiB	30.3 KiB
www.rts.ch/hbv7/static/css/rts-navigation-f08b0cf16d4c8234536f220a971295b6.css	13.9 KiB	12.9 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: 2.1 s 548.8 KiB

URL	Transfer Size	Est Savings
www.rts.ch/hbv7/resources/letterbox/v/3.37/letterbox.js	543.2 KiB	432.1 KiB
app.usercentrics.eu/browser-ui/3.99.0/index.module.js	120.6 KiB	52.9 KiB
app.usercentrics.eu/browser-ui/3.99.0/VirtualServiceItem-e4cab338.js	48.6 KiB	32.0 KiB
www.rts.ch/hbv7/static/js/hummingbird.min-6fe09d33e7b84266e412c71a514a2959.js	41.2 KiB	31.9 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
www.rts.ch/	797 ms	42 ms	7.3 ms
Unattributable	697 ms	102 ms	0.0 ms
www.rts.ch/hbv7/resources/letterbox/v/3.37/letterbox.js	571 ms	297 ms	263 ms
app.usercentrics.eu/browser-ui/3.99.0/index.module.js	543 ms	379 ms	2.7 ms
/hbv7/static/js/rts-usercentrics.min-c880ac2ab0e033ab0f03...	223 ms	202 ms	2.7 ms
cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js	174 ms	117 ms	11 ms
static.chartbeat.com/js/chartbeat.js	116 ms	94 ms	20 ms
colibri-js.akamaized.net/penguin/tc_RTS_13.js	107 ms	90 ms	15 ms
www.rts.ch/hbv7/resources/boreas/v3.9/boreas_b01.js	63 ms	50 ms	7.0 ms
www.rts.ch/hbv7/static/js/hummingbird.min-6fe09d33e7b84266e412c71a514a2959.js	57 ms	38 ms	18 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	1.5 s
Other	944 ms
Style & Layout	414 ms
Script Parsing & Compilation	359 ms
Rendering	151 ms
Parse HTML & CSS	104 ms
Garbage Collection	12 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
img.rts.ch/articles/2026/image/ucfriu-29214095.image?w=640&h=1024	1.1 MiB
img.rts.ch/articles/2026/image/nuiatw-29214923.image?w=640&h=1024	808.1 KiB
img.rts.ch/articles/2026/image/48ubop-29215046.image?w=640&h=1024	707.4 KiB
img.rts.ch/articles/2026/image/akbps9-29213187.image?w=640&h=1024	600.0 KiB
www.rts.ch/hbv7/resources/letterbox/v/3.37/letterbox.js	544.6 KiB
www.rts.ch/hbv7/resources/fonts/rts-neue/RTS-Neue-VF.woff2	321.0 KiB
img.rts.ch/articles/2026/image/m37ina-29213890.image?w=640&h=1024	224.5 KiB
app.usercentrics.eu/browser-ui/3.99.0/index.module.js	120.7 KiB
img.rts.ch/articles/2026/image/q9pnlt-29217444.image?w=640&h=1024	113.6 KiB
img.rts.ch/articles/2026/image/1b6pyx-29214257.image?w=640&h=1024	90.4 KiB

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

●Layout shift culprits

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●LCP request discovery

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoid long main-thread tasks 11 long tasks found

●Image elements have explicit `width` and `height`

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 570 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 210 ms

○INP breakdown

○User Timing marks and measures

○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.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Protéger son audition, c'est préserver son cerveau `a.rts-card > div.card-caption > div.card-body > h4.card-title`
"Budapest", le labyrinthe urbanistico-littéraire de Nina Yargekov `a.rts-card > div.card-caption > div.card-body > h4.card-title`
Affaire Fischer: "On était tous sous le choc", confie Romain Loeffel `a.rts-card > div.card-caption > div.card-body > h4.card-title`
Les Gardiennes `a.rts-card > div.card-caption > div.card-body > h4.card-title`
Le Perchoir en direct `a.rts-card > div.card-caption > div.card-body > h4.card-title`

These are opportunities to improve keyboard navigation in your application.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`
div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`
div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`

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.

○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

●Input buttons have discernible text.

●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

●Document has a main landmark.

●Deprecated ARIA roles were not used

●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 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.

○Uses ARIA roles only on compatible elements

○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.

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)
La joie des Nyonnaises au moment de poser devant le trophée. [Keystone - Jean-C… `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`	img.rts.ch/articles/2026/image/4h174c-29219947.image?w=320&h=240	380 x 214 (1.78)	320 x 240 (1.33)

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Map URL
www.rts.ch/hbv7/resources/letterbox/v/3.37/letterbox.js	www.rts.ch/hbv7/resources/letterbox/v/3.37/letterbox.js.map
www.rts.ch/hbv7/resources/boreas/v3.9/boreas_b01.js	www.rts.ch/hbv7/resources/boreas/v3.9/boreas_b01.js.map

●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

●Detected JavaScript libraries

○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

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`
div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`
div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item `div.card-thumbnail > div.embed-responsive > picture > img.embed-responsive-item`

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 have descriptive text

●Links are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`