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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.

36

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.

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.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:0.341 source:map[column:372735 line:2 type:source-location url:https://cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:70.533 source:map[type:text value:[unattributed]]] map[reflowTime:0.349 source:map[column:58370 line:7 type:source-location url:https://btloader.com/tag?o=6315858775244800&upapi=true urlProvider:network]] map[reflowTime:1.196 source:map[column:58447 line:7 type:source-location url:https://btloader.com/tag?o=6315858775244800&upapi=true urlProvider:network]] map[reflowTime:0.747 source:map[column:48825 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604300101/pubads_impl.js?cb=31098253 urlProvider:network]] map[reflowTime:0.5 source:map[column:242243 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604300101/pubads_impl.js?cb=31098253 urlProvider:network]] map[reflowTime:0.039 source:map[column:62161 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604300101/pubads_impl.js?cb=31098253 urlProvider:network]] map[reflowTime:0.042 source:map[column:87527 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604300101/pubads_impl.js?cb=31098253 urlProvider:network]] map[reflowTime:0.035 source:map[column:143649 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604300101/pubads_impl.js?cb=31098253 urlProvider:network]] map[reflowTime:0.094 source:map[column:235686 line:1 type:source-location url:https://cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js urlProvider:network]] map[reflowTime:0.341 source:map[column:295549 line:1 type:source-location url:https://cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js urlProvider:network]] map[reflowTime:0.226 source:map[column:143784 line:1 type:source-location url:https://cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js urlProvider:network]] map[reflowTime:0.062 source:map[column:310649 line:1 type:source-location url:https://cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Mira Murati’s deposition pulled back the curtain on Sam Altman’s ouster div.q0eggf1 > div.duet--content-cards--content-card > div._184mfto9 > img._1ymtmqpm
/wp-content/uploads/sites/2/2026/05/VRG_Illo_mira-murati_...60.0 KiB29.7 KiB
Nanoleaf bets its future on robots, red light therapy, and AI div.wu3ggx2 > div.duet--content-cards--content-card > div._1ufh7nr8 > img._1ufh7nrf
/wp-content/uploads/sites/2/2026/05/Nanoleaf-AI-Robotics-...16.3 KiB15.4 KiB
The AI RAM shortage is also driving up SSD prices div.duet--content-cards--content-card > div._1ufh7nr7 > div > img.x271pn0
/wp-content/uploads/sites/2/2025/12/STKS523_RAM_SHORTAGE_...14.5 KiB13.6 KiB
The future of game consoles is looking bleak div._1e7jslx6 > div.duet--content-cards--content-card > div._184mfto7 > img.x271pn0
/wp-content/uploads/sites/2/2025/06/257796_Nintendo_Switc...23.7 KiB12.4 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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 24.2 KiB
URLTransfer SizeEst Savings
www.theverge.com/_next/static/css/67c4bd3a29d2225c.css31.8 KiB24.2 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.

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.

URLTotal CPU TimeScript EvaluationScript Parse
www.theverge.com/_next/static/chunks/pages/_app-f75b2ad9d5bd8b03.js2.8 s2.1 s208 ms
www.theverge.com/_next/static/chunks/framework-8e0f3cf51af7b1e2.js2.2 s2.0 s11 ms
Unattributable1.6 s146 ms0.0 ms
www.theverge.com/1.2 s16 ms0.8 ms
/pagead/managed/js/gpt/m202604300101/pubads_impl.js?cb=31...977 ms865 ms42 ms
cdn.concert.io/lib/concert-ads/v2-latest/concert_ads.js958 ms802 ms27 ms
www.theverge.com/metrics/gtm.js?id=GTM-WQ5FM5W355 ms303 ms48 ms
/assets/smart-tag/versioned/ads-v2_fc3e31023132eb6682f46b...339 ms113 ms13 ms
client.aps.amazon-adsystem.com/publisher.js263 ms208 ms27 ms
/metrics/3OIhdyKSg7ILr-TYryvmVkhWGm3dzNJdD1cs_QpJ8CF0wXM1...246 ms162 ms28 ms
www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js210 ms115 ms84 ms
cdn.bullwhip.cloud/sonar/vox-verge.umd.js169 ms92 ms33 ms
/assets/smart-tag/versioned/main-v2_63e84cd7813c827315a19...154 ms108 ms36 ms
btloader.com/tag?o=6315858775244800&upapi=true153 ms127 ms8.6 ms
/state/js?website_id=6384&device_id=4755990941268823480&v...150 ms146 ms0.3 ms
c.amazon-adsystem.com/aax2/apstag.js128 ms93 ms26 ms
pub.doubleverify.com/dvtag/21236410/DV464041/pub.js118 ms98 ms8.2 ms
www.theverge.com/_next/static/chunks/pages/resource/homepage-2053d90b7d2fff1c.js84 ms76 ms7.1 ms
config.aps.amazon-adsystem.com/configs/317672 ms69 ms2.1 ms
www.theverge.com/_next/static/chunks/main-2d72d2950d961b0b.js71 ms62 ms7.9 ms
www.googletagservices.com/tag/js/gpt.js63 ms55 ms7.9 ms
/assets/smart-tag/versioned/cjs_min_92abedfd1b9757a428bfc...52 ms40 ms3.4 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.

CategoryTime Spent
Script Evaluation8.4 s
Other2.2 s
Script Parsing & Compilation703 ms
Style & Layout654 ms
Garbage Collection553 ms
Rendering319 ms
Parse HTML & CSS163 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
Pages with cache-control:no-store header cannot enter back/forward cache.Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.Not actionable

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

Layout shift culprits
Document request latency
Optimize DOM size
LCP breakdown
LCP request discovery
Modern HTTP
Network dependency tree
Render blocking requests
Optimize viewport for mobile
Minify CSS
Minify JavaScript
User Timing marks and measures 21 user timings
Avoid long main-thread tasks 20 long tasks found
Image elements have explicit `width` and `height`
Network Requests
Network Round Trip Times 40 ms
Server Backend Latencies 120 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 0 ms
Avoid large layout shifts 1 layout shift found
INP breakdown
Avoid non-composited animations
97

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.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Cookie Settings div._1twvhsd0 > ul._1twvhsd1 > li._1twvhsd2 > button#ot-sdk-btn
Cookie Policy div._1twvhsd0 > ul._1twvhsd1 > li._1twvhsd2 > a._1twvhsd3
Platform Status div._1twvhsd0 > ul._1twvhsd1 > li._1twvhsd2 > a._1twvhsd3

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
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
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.
`[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
Form elements have associated labels
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
No element has a `[tabindex]` value greater than 0
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
Image elements do not have `[alt]` attributes that are redundant text.
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.
96

Best Practices

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
Failed to load resource: the server responded with a status of 401 ()

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.

Uses HTTPS
Avoids deprecated APIs
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
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

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.

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`

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