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Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

57

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.

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.

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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:32.16 source:map[type:text value:[unattributed]]]]

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.

URLResource SizeEst Savings
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=1440&quality=85&resize_to=fill&src=https%3A%2F%2...258.7 KiB197.6 KiB
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=668&quality=85&resize_to=fill&src=https%3A%2F%2F...120.6 KiB109.0 KiB
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=668&quality=85&resize_to=fill&src=https%3A%2F%2F...85.4 KiB75.2 KiB
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=668&quality=85&resize_to=fill&src=https%3A%2F%2F...80.6 KiB71.0 KiB
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=668&quality=85&resize_to=fill&src=https%3A%2F%2F...46.8 KiB41.2 KiB
div.fresnel-container > a.RouterLink__RouterUnawareLink-sc-49240801-1 > div.Box-hCNGxy > img.Box-hCNGxy div.fresnel-container > a.RouterLink__RouterUnawareLink-sc-49240801-1 > div.Box-hCNGxy > img.Box-hCNGxy
/?height=666&quality=85&resize_to=fill&src=https%3A%2F%2F...69.0 KiB39.7 KiB
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=668&quality=85&resize_to=fill&src=https%3A%2F%2F...43.7 KiB38.5 KiB
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=668&quality=85&resize_to=fill&src=https%3A%2F%2F...38.3 KiB33.7 KiB
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=666&quality=85&resize_to=fill&src=https%3A%2F%2F...49.7 KiB28.6 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?quality=85&resize_to=width&src=https%3A%2F%2Fd32dm0rphc...49.0 KiB23.1 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?quality=85&resize_to=width&src=https%3A%2F%2Fd32dm0rphc...48.4 KiB22.5 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?quality=85&resize_to=width&src=https%3A%2F%2Fd32dm0rphc...38.0 KiB12.1 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?quality=85&resize_to=width&src=https%3A%2F%2Fd32dm0rphc...37.1 KiB11.1 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?quality=85&resize_to=width&src=https%3A%2F%2Fd32dm0rphc...33.3 KiB7.3 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?quality=85&resize_to=width&src=https%3A%2F%2Fd32dm0rphc...32.6 KiB6.6 KiB

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-5-IMG
nodeLabel: div.fresnel-container > a.RouterLink__RouterUnawareLink-sc-49240801-1 > div.Box-hCNGxy > img.Box-hCNGxy
path: 1,HTML,1,BODY,16,DIV,0,DIV,0,DIV,1,DIV,1,MAIN,0,DIV,1,DIV,0,DIV,0,UL,0,LI,0,DIV,0,DIV,0,A,0,DIV,0,IMG
selector: div.fresnel-container > a.RouterLink__RouterUnawareLink-sc-49240801-1 > div.Box-hCNGxy > img.Box-hCNGxy
snippet: <img width="100%" height="100%" display="block" alt="" src="https://d7hftxdivxxvm.cloudfront.net/?height=666&amp;quality=85&amp;resize_to=fill…" srcset="https://d7hftxdivxxvm.cloudfront.net?height=333&amp;quality=85&amp;resize_to=fill&amp;…" class="Box-hCNGxy Image__Img-kBJuFj lciiOG">

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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

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.

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: 800 ms
URLTime Spent
artsy.net/800 ms
www.artsy.net/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

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.

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.

CategoryTime Spent
Script Evaluation3.6 s
Other1.2 s
Style & Layout565 ms
Script Parsing & Compilation443 ms
Rendering197 ms
Garbage Collection110 ms
Parse HTML & CSS62 ms

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.

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
●LCP breakdown
●Modern HTTP
●Render blocking requests
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Reduce unused CSS
●Avoids enormous network payloads Total size was 1,880 KiB
●User Timing marks and measures 1 user timing
●Avoid long main-thread tasks 14 long tasks found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 20 ms
●Server Backend Latencies 170 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 20 ms
○INP breakdown
○Avoid non-composited animations
○Avoid large layout shifts
82

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

Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Curators’ Picks div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Follow Artsy on WeChat div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy

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.

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
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy

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.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
head > meta head > meta

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
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Terms and Conditions div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Buyer Guarantee div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Privacy Policy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Security div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Do not sell my personal information div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Accessibility div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0

These items highlight common accessibility best practices.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Discover and Buy Art That Moves You Turn art into a daily habit. Follow artists… li.Box-hCNGxy > div.Box-hCNGxy > div.fresnel-container > a.RouterLink__RouterUnawareLink-sc-49240801-1
New to Artsy Discover fresh, handpicked finds from galleries across the globe. … li.Box-hCNGxy > div.Box-hCNGxy > div.fresnel-container > a.RouterLink__RouterAwareLink-sc-49240801-0
Aiko Sato (佐藤藍子) A Quiet Room, 2026 Kyoto Art Gallery US$1,288 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Neon Mary The Pause of the Game, Yellow, Blue, Grey, Mint, Green, Teal, White, … div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Timi O 30.5x45 cm - Révérence, 2026 Artseeker Gallery US$300 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Aiko Sato (佐藤藍子) Appearance, 2024 Kyoto Art Gallery US$900 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Minyoung Kim Dandelions, 2023 Taymour Grahne Projects £550 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Clément Bataille Station 7 — La deuxième chute (portrait de Jordan), 2026 DS Ga… div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Raelis Vasquez Horizons, 2023 Bode €19,000–€24,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Tuan Vu Catching Lights, 2025 Patel Brown US$18,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Ruben Einsmann La Féira I, 2025 PLAN X €6,000–€6,500 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Holland Cunningham Joe's Pheasant, 2024 Voltz Clarke US$1,700 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Samira Abbassy The Hand that Writes my Fate, 2025 Taymour Grahne Projects US$14… div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Evelina Reiter Liebe Grüße aus New York, 2026 galerie burster €1,500 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Alexandria Tarver nights, 96, 2025 NINO MIER GALLERY US$5,500–US$7,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Takumi Saito familiar place, 2025 GALLERY MoMo US$1,200 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Sophie Ullrich Appeler des fantômes, 2025 Galerie Droste €5,250 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Mary Royall Wilgis Ashland Place, 4:57 pm, 2026 Uprise Art US$2,300 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Karel Dicker Too Many Choices, 2026 NINO MIER GALLERY US$5,000–US$6,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Joanne Greenbaum Untitled, 2016 NINO MIER GALLERY US$7,500–US$9,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Amy Lincoln Spiral Galaxy Study with Trees (Blue #3), 2025 Taymour Grahne Proje… div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Tim Sandow On a date with you, 2026 Galerie Droste €14,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-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
●Form elements have associated labels
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Links have a discernible name
●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
●Heading elements appear in a sequentially-descending order
●Skip links are focusable.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Uses ARIA roles only on compatible elements
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<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.
○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.
○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.
81

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
SharedStorage
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
Fledge
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●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
●Use a strong HSTS policy
●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
○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

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
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy

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`

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