C — https://www.mapbox.com | BeaverCheck Audit

Site Health

Score: 74 / 100

Based on 8 categories, 0 sections

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

Top Priorities (5)

Page weighs 13.1 MB (9.0 MB transferred)

Performance › Page Weight Budget

3 link(s) with no accessible text

Accessibility › Link & Button Quality

37 image-only link(s) without alt text

Accessibility › Link & Button Quality

is missing width/height — may cause layout shift

Performance › Image Optimization

Cross-Origin-Embedder-Policy header is missing

Security › Security Headers

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Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fwww.mapbox.com)](https://beavercheck.com/results/b2e3cabd-119d-0ce7-57b4-1490c356af1b)

HTML

<a href="https://beavercheck.com/results/b2e3cabd-119d-0ce7-57b4-1490c356af1b"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fwww.mapbox.com" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fwww.mapbox.com

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

100

SEO

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

4.37 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

11.34 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

668 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

5.19 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

13.80 s

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.

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

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Request	Cache TTL	Transfer Size
/www/videos/home/section_carousel-looping-background/vide...	0.0 ms	2.2 MiB
static-assets.mapbox.com/www/videos/home/section_location-data/video@720p.mp4	0.0 ms	324.4 KiB
static-assets.mapbox.com/www/videos/home/section_beautiful-maps/poster.jpeg	0.0 ms	83.2 KiB
/www/videos/home/section_carousel-looping-background/post...	0.0 ms	67.8 KiB
cdn.weglot.com/weglot.min.js?api_key=wg_72541dd0c0e63359b4c7d5c8185e2e625	1800.0 s	71.1 KiB
cdn.prod.website-files.com/gsap/3.14.2/gsap.min.js	0.0 ms	29.0 KiB
cdn.prod.website-files.com/gsap/3.14.2/ScrollTrigger.min.js	0.0 ms	18.2 KiB
static-assets.mapbox.com/www/videos/home/section_location-data/poster.jpeg	0.0 ms	11.4 KiB
static-assets.mapbox.com/user-menu/user-menu.js	1800.0 s	9.4 KiB
snap.licdn.com/li.lms-analytics/insight.min.js	86400.0 s	18.7 KiB
cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js	604800.0 s	43.8 KiB
static-assets.mapbox.com/www/scripts/analytics.js	0.0 ms	4.3 KiB
cdn.prod.website-files.com/gsap/3.14.2/ScrollToPlugin.min.js	0.0 ms	2.3 KiB
static-assets.mapbox.com/www/scripts/weglot/init.js	0.0 ms	1.1 KiB
/collect?v=2&fmt=js&pid=6912124&time=1775593364102&url=ht...	0.0 ms	693 B
grow.clearbitjs.com/api/pixel.js?v=1775593363382	0.0 ms	371 B
static-assets.mapbox.com/www/videos/home/section_beautiful-maps/video@720p.mp4	0.0 ms	0 B

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.

URL	Est Savings
/s/sourcecodepro/v31/HI_SiYsKILxRpg3hIP6sJ7fM7PqlPevWnsUn...	30 ms

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.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:46.734 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

	URL	Resource Size	Est Savings
div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video `div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video`	static-assets.mapbox.com/www/videos/home/section_beautiful-maps/poster.jpeg	82.7 KiB	50.6 KiB
div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video `div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video`	/www/videos/home/section_carousel-looping-background/post...	67.4 KiB	44.4 KiB
div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img `div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img`	/6050a76fa6a633d5d54ae714/6883dbf2ab3adb2a061f807a_Blog c...	66.9 KiB	27.1 KiB
div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img `div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img`	/6050a76fa6a633d5d54ae714/695bf44f50123065656cc1a3_695be8...	37.8 KiB	14.8 KiB
div#w-tabs-0-data-w-pane-0 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-0 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/6851e1e449941b794227a25b_homepa...	40.7 KiB	13.7 KiB
div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img `div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img`	/6050a76fa6a633d5d54ae714/699891fc5397e9597d62be3e_newsle...	25.0 KiB	12.9 KiB
div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img `div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img`	/6050a76fa6a633d5d54ae714/6937332d42604688a962cfb6_homepa...	41.6 KiB	12.7 KiB
div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video `div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video`	static-assets.mapbox.com/www/videos/home/section_location-data/poster.jpeg	11.0 KiB	6.7 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

lhId: page-1-VIDEO

nodeLabel: div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video

path: 2,HTML,1,BODY,0,DIV,3,SECTION,0,DIV,0,DIV,3,DIV,2,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,VIDEO

selector: div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video

snippet: <video autoplay="" muted="" loop="" playsinline="" poster="https://static-assets.mapbox.com/www/videos/home/section_carousel-looping-…" class="video-embed_video">

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.

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

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.

URL	Transfer Size	Duration
static-assets.mapbox.com/www/scripts/analytics.js	4.3 KiB	1.2 s
static-assets.mapbox.com/www/scripts/weglot/init.js	1.1 KiB	182 ms
/6050a76fa6a633d5d54ae714/css/www-mapbox.shared.f0cd7311b...	92.6 KiB	2.0 s
ajax.googleapis.com/ajax/libs/webfont/1.6.26/webfont.js	5.9 KiB	1.0 s
cdn.cookielaw.org/scripttemplates/otSDKStub.js	0 B	780 ms
cdn.cookielaw.org/consent/8b2986c7-1b66-4d3e-aa3e-d5851e622616/OtAutoBlock.js	0 B	780 ms
cdn.jsdelivr.net/npm/@splidejs/splide@4.1.4/dist/css/splide.min.css	1.7 KiB	752 ms

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.

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.

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.

Estimated savings: 680 ms 80.1 KiB

URL	Transfer Size	Est Savings
/6050a76fa6a633d5d54ae714/css/www-mapbox.shared.f0cd7311b...	92.1 KiB	80.1 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Estimated savings: 1.3 s 343.5 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=AW-16617866687&cx=c&gtm=4e6460	176.5 KiB	113.3 KiB
www.googletagmanager.com/gtag/js?id=G-K0D3QK4GKE	175.5 KiB	67.7 KiB
www.googletagmanager.com/gtag/js?id=AW-16617866687	176.5 KiB	59.7 KiB
cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js	43.6 KiB	42.3 KiB
cdn.weglot.com/weglot.min.js?api_key=wg_72541dd0c0e63359b4c7d5c8185e2e625	69.4 KiB	32.0 KiB
cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js	36.0 KiB	28.5 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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.mapbox.com/	688 ms	88 ms	22 ms
Unattributable	557 ms	19 ms	0.0 ms
/6050a76fa6a633d5d54ae714/js/www-mapbox.schunk.bc77267c56...	554 ms	149 ms	55 ms
www.googletagmanager.com/gtag/js?id=G-K0D3QK4GKE	391 ms	274 ms	60 ms
www.googletagmanager.com/gtag/js?id=AW-16617866687	364 ms	271 ms	76 ms
/6050a76fa6a633d5d54ae714/js/www-mapbox.9747a68c.a3b83a68...	313 ms	287 ms	0.4 ms
cdn.weglot.com/weglot.min.js?api_key=wg_72541dd0c0e63359b4c7d5c8185e2e625	275 ms	248 ms	24 ms
www.googletagmanager.com/gtag/js?id=AW-16617866687&cx=c&gtm=4e6460	101 ms	41 ms	52 ms
/js/jquery-3.5.1.min.dc5e7f18c8.js?site=6050a76fa6a633d5d...	92 ms	68 ms	8.0 ms
cdn.prod.website-files.com/gsap/3.14.2/gsap.min.js	63 ms	49 ms	7.4 ms
cdn.prod.website-files.com/gsap/3.14.2/ScrollTrigger.min.js	62 ms	41 ms	6.0 ms
cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js	56 ms	24 ms	24 ms
snap.licdn.com/li.lms-analytics/insight.min.js	54 ms	41 ms	4.6 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

Category	Time Spent
Script Evaluation	1.7 s
Other	927 ms
Style & Layout	444 ms
Script Parsing & Compilation	380 ms
Garbage Collection	126 ms
Parse HTML & CSS	111 ms
Rendering	84 ms

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

URL	Transfer Size
static-assets.mapbox.com/www/videos/home/section_beautiful-maps/video@720p.mp4	4.6 MiB
/www/videos/home/section_carousel-looping-background/vide...	2.2 MiB
static-assets.mapbox.com/www/videos/home/section_location-data/video@720p.mp4	324.4 KiB
www.googletagmanager.com/gtag/js?id=AW-16617866687&cx=c&gtm=4e6460	176.5 KiB
www.googletagmanager.com/gtag/js?id=AW-16617866687	176.5 KiB
www.googletagmanager.com/gtag/js?id=G-K0D3QK4GKE	175.8 KiB
www.mapbox.com/	112.9 KiB
/6050a76fa6a633d5d54ae714/css/www-mapbox.shared.f0cd7311b...	92.6 KiB
static-assets.mapbox.com/www/videos/home/section_beautiful-maps/poster.jpeg	83.2 KiB
/6050a76fa6a633d5d54ae714/6851db8b65ca553e170c9762_homepa...	78.6 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

	URL
div#w-tabs-0-data-w-pane-0 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-0 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/6851e1e449941b794227a25b_homepa...
div.logo-proof_body-old > div.logo-row_layout > div.logo-row_logo > img `div.logo-proof_body-old > div.logo-row_layout > div.logo-row_logo > img`	/6050a76fa6a633d5d54ae714/65030fdee144f0f00244ef79_snowfl...
section.section > div.colout > div.colout-col-asset > img `section.section > div.colout > div.colout-col-asset > img`
section.section > div.colout > div.colout-col-asset > img `section.section > div.colout > div.colout-col-asset > img`

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

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 10 user timings

●Avoid long main-thread tasks 14 long tasks found

●Avoid non-composited animations 5 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 30 ms

●Server Backend Latencies 320 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 160 ms

○INP breakdown

○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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Failing Elements
Sign up `div.nav_header-right > div.nav_control-actions > div#sign-up > a.button`
Get started for free `div.container > div.flex > div.w-layout-hflex > a.button`
Automotive `div.tabs-light-wrapper > div.tabs-cases > a#w-tabs-0-data-w-tab-0 > div`
Discover Mapbox for Automotive → `div.position-relative > div.position-relative > a.link > p.text-size-18px`
Sign up for free `div.link-group_layout-new > a.button_component > div.button_inner > div.text-style-link`

These are opportunities to improve the legibility of your content.

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.

Failing Elements
3D Lanes provide true-to-life road detail for in-vehicle and mobile navigation `div.home-carousel-slide > a.home-carousel-slide-in > div.position-relative > h3.heading`

These are opportunities to improve keyboard navigation in your application.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Failing Elements
div.nav_layout > div.nav_header > div.nav_header-left > a.nav_brand `div.nav_layout > div.nav_header > div.nav_header-left > a.nav_brand`
div.nav_header > div.nav_header-right > div.nav_control-menu-toggle > a#menu `div.nav_header > div.nav_header-right > div.nav_control-menu-toggle > a#menu`

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

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.

Failing Elements
Terms `div.footer_bottom-layout > div.footer_bottom-left > div.footer_legal-links > a.footer_link`
Privacy `div.footer_bottom-layout > div.footer_bottom-left > div.footer_legal-links > a.footer_link`
Security `div.footer_bottom-layout > div.footer_bottom-left > div.footer_legal-links > a.footer_link`
Your California Privacy Choices `div.footer_bottom-layout > div.footer_bottom-left > div.footer_legal-links > a.footer_link`

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

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●No element has a `[tabindex]` value greater than 0

●Document has a main landmark.

●Deprecated ARIA roles were not used

●`<video>` elements contain a `<track>` element with `[kind="captions"]`

●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-hidden="true"]` elements do not contain focusable descendents

○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

○Links are distinguishable without relying on color.

○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

○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.

○`[lang]` attributes have a valid value

○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.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
div#w-tabs-0-data-w-pane-1 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-1 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/65095d60103084de89b9af15_homepa...	620 x 542 (1.14)	800 x 542 (1.48)
div#w-tabs-0-data-w-pane-3 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-3 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/65095d5feb74df805601b42a_homepa...	620 x 542 (1.14)	800 x 542 (1.48)
div#w-tabs-0-data-w-pane-4 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-4 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/6851db8b65ca553e170c9762_homepa...	620 x 542 (1.14)	800 x 542 (1.48)
div#w-tabs-0-data-w-pane-2 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-2 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/6851daf609834bfdeba38d7b_homepa...	620 x 525 (1.18)	800 x 525 (1.52)

General

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

Deprecation / Warning	Source
AttributionReporting	snap.licdn.com/li.lms-analytics/insight.min.js

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

Source	Description
grow.clearbitjs.com/api/pixel.js?v=1775593363382	`Clearbit: Please migrate to the new script. See https://grow.clearbit.com/migrate`
www.mapbox.com/api/session	`Failed to load resource: the server responded with a status of 403 (Forbidden)`

●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

●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

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Ensure proper origin isolation with COOP

○Mitigate clickjacking with XFO or CSP

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`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

Best Practices

100

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.36 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

2.52 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

12 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.002

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

1.71 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

2.97 s

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.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Request	Cache TTL	Transfer Size
/www/videos/home/section_carousel-looping-background/vide...	0.0 ms	2.2 MiB
static-assets.mapbox.com/www/videos/home/section_location-data/video@720p.mp4	0.0 ms	324.5 KiB
static-assets.mapbox.com/www/videos/home/section_beautiful-maps/poster.jpeg	0.0 ms	83.2 KiB
/www/videos/home/section_carousel-looping-background/post...	0.0 ms	67.8 KiB
cdn.weglot.com/weglot.min.js?api_key=wg_72541dd0c0e63359b4c7d5c8185e2e625	1800.0 s	71.1 KiB
cdn.prod.website-files.com/gsap/3.14.2/gsap.min.js	0.0 ms	29.0 KiB
cdn.prod.website-files.com/gsap/3.14.2/ScrollTrigger.min.js	0.0 ms	18.2 KiB
static-assets.mapbox.com/www/videos/home/section_location-data/poster.jpeg	0.0 ms	11.4 KiB
static-assets.mapbox.com/user-menu/user-menu.js	1800.0 s	9.4 KiB
snap.licdn.com/li.lms-analytics/insight.min.js	86400.0 s	18.7 KiB
cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js	604800.0 s	43.7 KiB
static-assets.mapbox.com/www/scripts/analytics.js	0.0 ms	4.3 KiB
cdn.prod.website-files.com/gsap/3.14.2/ScrollToPlugin.min.js	0.0 ms	2.3 KiB
static-assets.mapbox.com/www/scripts/weglot/init.js	0.0 ms	1.1 KiB
/collect?v=2&fmt=js&pid=6912124&time=1775593384797&url=ht...	0.0 ms	694 B
grow.clearbitjs.com/api/pixel.js?v=1775593383994	0.0 ms	362 B
static-assets.mapbox.com/www/videos/home/section_beautiful-maps/video@720p.mp4	0.0 ms	0 B

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.

URL	Est Savings
/s/sourcecodepro/v31/HI_SiYsKILxRpg3hIP6sJ7fM7PqlPevWnsUn...	30 ms

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:69.216 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

	URL	Resource Size	Est Savings
div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img `div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img`	/6050a76fa6a633d5d54ae714/6937332d42604688a962cfb6_homepa...	99.4 KiB	69.9 KiB
div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img `div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img`	/6050a76fa6a633d5d54ae714/6883dbf2ab3adb2a061f807a_Blog c...	111.5 KiB	66.8 KiB
div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video `div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video`	/www/videos/home/section_carousel-looping-background/post...	67.4 KiB	43.6 KiB
div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video `div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video`	static-assets.mapbox.com/www/videos/home/section_beautiful-maps/poster.jpeg	82.7 KiB	43.4 KiB
div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img `div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img`	/6050a76fa6a633d5d54ae714/695e97ebf6b0e0f25164711a_Mapbox...	55.8 KiB	42.9 KiB
div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img `div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img`	/6050a76fa6a633d5d54ae714/695bf44f50123065656cc1a3_695be8...	57.2 KiB	33.7 KiB
div#w-tabs-0-data-w-pane-0 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-0 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/6851e1e449941b794227a25b_homepa...	40.7 KiB	16.3 KiB
div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img `div.carousel > div.home-carousel-slide > a.home-carousel-slide-in > img.home-carousel-slide-img`	/6050a76fa6a633d5d54ae714/699891fc5397e9597d62be3e_newsle...	25.0 KiB	12.5 KiB
div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video `div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video`	static-assets.mapbox.com/www/videos/home/section_location-data/poster.jpeg	11.0 KiB	5.8 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

lhId: page-2-VIDEO

nodeLabel: div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video

path: 2,HTML,1,BODY,0,DIV,3,SECTION,0,DIV,0,DIV,3,DIV,2,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,VIDEO

selector: div.media-sizer_component > div.media-sizer_slot > div.video-embed_component > video.video-embed_video

snippet: <video autoplay="" muted="" loop="" playsinline="" poster="https://static-assets.mapbox.com/www/videos/home/section_carousel-looping-…" class="video-embed_video">

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.

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

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.

URL	Transfer Size	Duration
static-assets.mapbox.com/www/scripts/analytics.js	4.3 KiB	636 ms
static-assets.mapbox.com/www/scripts/weglot/init.js	1.1 KiB	72 ms
/6050a76fa6a633d5d54ae714/css/www-mapbox.shared.f0cd7311b...	92.6 KiB	506 ms
ajax.googleapis.com/ajax/libs/webfont/1.6.26/webfont.js	5.9 KiB	284 ms
cdn.cookielaw.org/scripttemplates/otSDKStub.js	0 B	230 ms
cdn.cookielaw.org/consent/8b2986c7-1b66-4d3e-aa3e-d5851e622616/OtAutoBlock.js	0 B	230 ms
cdn.jsdelivr.net/npm/@splidejs/splide@4.1.4/dist/css/splide.min.css	1.7 KiB	203 ms

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.

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.

Estimated savings: 70 ms 82.2 KiB

URL	Transfer Size	Est Savings
/6050a76fa6a633d5d54ae714/css/www-mapbox.shared.f0cd7311b...	92.1 KiB	82.2 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.

Estimated savings: 170 ms 344.4 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=G-K0D3QK4GKE&cx=c&gtm=4e6460	175.5 KiB	113.5 KiB
www.googletagmanager.com/gtag/js?id=G-K0D3QK4GKE	175.5 KiB	71.1 KiB
www.googletagmanager.com/gtag/js?id=AW-16617866687	176.5 KiB	57.1 KiB
cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js	43.6 KiB	42.3 KiB
cdn.weglot.com/weglot.min.js?api_key=wg_72541dd0c0e63359b4c7d5c8185e2e625	69.4 KiB	31.9 KiB
cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js	36.0 KiB	28.5 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

URL	Transfer Size
static-assets.mapbox.com/www/videos/home/section_beautiful-maps/video@720p.mp4	5.7 MiB
/www/videos/home/section_carousel-looping-background/vide...	2.2 MiB
static-assets.mapbox.com/www/videos/home/section_location-data/video@720p.mp4	324.5 KiB
www.googletagmanager.com/gtag/js?id=AW-16617866687	176.8 KiB
www.googletagmanager.com/gtag/js?id=G-K0D3QK4GKE&cx=c&gtm=4e6460	175.5 KiB
www.googletagmanager.com/gtag/js?id=G-K0D3QK4GKE	175.5 KiB
/6050a76fa6a633d5d54ae714/6851db8b65ca553e170c9762_homepa...	171.2 KiB
/6050a76fa6a633d5d54ae714/6851daf609834bfdeba38d7b_homepa...	117.5 KiB
www.mapbox.com/	112.9 KiB
/6050a76fa6a633d5d54ae714/6883dbf2ab3adb2a061f807a_Blog c...	111.9 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

	URL
div#w-tabs-0-data-w-pane-0 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-0 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/6851e1e449941b794227a25b_homepa...
div.logo-proof_body-old > div.logo-row_layout > div.logo-row_logo > img `div.logo-proof_body-old > div.logo-row_layout > div.logo-row_logo > img`	/6050a76fa6a633d5d54ae714/65030fdee144f0f00244ef79_snowfl...
section.section > div.colout > div.colout-col-asset > img `section.section > div.colout > div.colout-col-asset > img`
section.section > div.colout > div.colout-col-asset > img `section.section > div.colout > div.colout-col-asset > img`

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

●Modern HTTP

●Optimize viewport for mobile

●Max Potential First Input Delay 60 ms

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 10 user timings

●JavaScript execution time 0.4 s

●Minimizes main-thread work 1.0 s

●Avoid long main-thread tasks 3 long tasks found

●Avoid non-composited animations 5 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 40 ms

●Server Backend Latencies 340 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 190 ms

●Avoid large layout shifts 3 layout shifts found

○INP breakdown

Accessibility

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Failing Elements
Sign up `div.nav_header-right > div.nav_control-actions > div#sign-up > a.button`
Get started for free `div.container > div.flex > div.w-layout-hflex > a.button`
Automotive `div.tabs-light-wrapper > div.tabs-cases > a#w-tabs-0-data-w-tab-0 > div`
Discover Mapbox for Automotive → `div.position-relative > div.position-relative > a.link > p.text-size-18px`
Sign up for free `div.link-group_layout-new > a.button_component > div.button_inner > div.text-style-link`

These are opportunities to improve the legibility of your content.

Navigation

Failing Elements
3D Lanes provide true-to-life road detail for in-vehicle and mobile navigation `div.home-carousel-slide > a.home-carousel-slide-in > div.position-relative > h3.heading`

These are opportunities to improve keyboard navigation in your application.

Names and labels

Failing Elements
div.nav_layout > div.nav_header > div.nav_header-left > a.nav_brand `div.nav_layout > div.nav_header > div.nav_header-left > a.nav_brand`

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

●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

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●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.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●`<video>` elements contain a `<track>` element with `[kind="captions"]`

●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-hidden="true"]` elements do not contain focusable descendents

○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

○Links are distinguishable without relying on color.

○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

○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.

○`[lang]` attributes have a valid value

○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.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
div#w-tabs-0-data-w-pane-1 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-1 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/65095d60103084de89b9af15_homepa...	620 x 840 (0.74)	1240 x 840 (1.48)
div#w-tabs-0-data-w-pane-2 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-2 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/6851daf609834bfdeba38d7b_homepa...	620 x 840 (0.74)	1280 x 840 (1.52)
div#w-tabs-0-data-w-pane-3 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-3 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/65095d5feb74df805601b42a_homepa...	620 x 840 (0.74)	1240 x 840 (1.48)
div#w-tabs-0-data-w-pane-4 > div.container > div.callout-visual-wrap > img.border-radius-24 `div#w-tabs-0-data-w-pane-4 > div.container > div.callout-visual-wrap > img.border-radius-24`	/6050a76fa6a633d5d54ae714/6851db8b65ca553e170c9762_homepa...	620 x 840 (0.74)	1240 x 840 (1.48)

General

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

Deprecation / Warning	Source
AttributionReporting	snap.licdn.com/li.lms-analytics/insight.min.js

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

Source	Description
grow.clearbitjs.com/api/pixel.js?v=1775593383994	`Clearbit: Please migrate to the new script. See https://grow.clearbit.com/migrate`
www.mapbox.com/api/session	`Failed to load resource: the server responded with a status of 403 (Forbidden)`

●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

●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

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Ensure proper origin isolation with COOP

○Mitigate clickjacking with XFO or CSP

100

SEO

○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`

Browse & Analyze

Learn

Results for https://www.mapbox.com

Site Health

Top Priorities (5)

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Navigation

Names and labels

Best practices

Best Practices

User Experience

General

SEO

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Navigation

Names and labels

Best Practices

User Experience

General

SEO

Keyboard Shortcuts