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

Site Health

Score: 78 / 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)

Content-Security-Policy header is missing

Security › Security Headers

No Content-Security-Policy header found

Security › Content Security Policy

Page weighs 55.3 MB (45.1 MB transferred)

Performance › Page Weight Budget

1 control(s) without accessible label

Accessibility › Form Accessibility

1 link(s) with no accessible text

Accessibility › Link & Button Quality

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Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fwww.docker.com)](https://beavercheck.com/results/b9322ee8-691b-5c86-b004-767ad189591a)

HTML

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

100

Best Practices

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.

15.77 s

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

15.77 s

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

499 ms

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

0.003

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

30.48 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.

103.91 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.

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
www.docker.com/app/themes/Ponyo/dist/fonts/ABCRepro-Bold.fe39dde5.woff2	160 ms
www.docker.com/app/themes/Ponyo/dist/fonts/Inter-SemiBold.4d56bb21.ttf	155 ms
www.docker.com/app/themes/Ponyo/dist/fonts/ABCRepro-Medium.2e19b89f.woff2	155 ms
www.docker.com/app/themes/Ponyo/dist/fonts/Inter-Medium.6dcbc9be.ttf	125 ms
www.docker.com/app/themes/Ponyo/dist/fonts/Inter-Regular.e89cb199.ttf	125 ms
www.docker.com/app/themes/Ponyo/dist/fonts/Inter-Bold.88fa7ae3.ttf	110 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	55 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	50 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:65.703 source:map[type:text value:[unattributed]]] map[reflowTime:0.959 source:map[column:153 line:534 type:source-location url:https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js urlProvider:network]]]

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

lhId: page-0-VIDEO

nodeLabel: article.wp-block-group > div.entry-content > div.text-align__left > video.background-video

path: 1,HTML,1,BODY,4,DIV,0,DIV,1,MAIN,0,ARTICLE,0,DIV,0,DIV,0,VIDEO

selector: article.wp-block-group > div.entry-content > div.text-align__left > video.background-video

snippet: <video class="background-video" src="/app/uploads/brand/background/DOCKER_hero_loop_opacity-reduction-25percent…" autoplay="" muted="" loop="" playsinline="">

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

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.

URL	Transfer Size	Duration
cdn.cookielaw.org/scripttemplates/otSDKStub.js	9.1 KiB	1.0 s
www.docker.com/wp/wp-includes/js/jquery/jquery.min.js?ver=3.7.1	34.8 KiB	150 ms
www.docker.com/wp/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1	5.8 KiB	150 ms
/app/themes/Ponyo/dist/blocks/atoms/pill/pill-style.css?v...	827 B
www.docker.com/app/themes/Ponyo/dist/css/screen.css?ver=095f5c1f2a2197d8b78e	17.3 KiB
/app/themes/Ponyo/dist/blocks/atoms/button/button-style.c...	1.5 KiB

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

Request	Cache TTL	Transfer Size
assets.adobedtm.com/ba6d3e7c167e/6bf3c6b5f665/launch-55e2612a4c37.min.js	3600.0 s	84.1 KiB
cdn.cookielaw.org/scripttemplates/202306.2.0/otBannerSdk.js	86400.0 s	97.7 KiB
i.ytimg.com/vi_webp/21FE7_9DsBM/sddefault.webp	7200.0 s	17.7 KiB
cdn.cookielaw.org/logos/static/ot_company_logo.png	86400.0 s	19.1 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js	86400.0 s	9.1 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg	86400.0 s	2.5 KiB
static.doubleclick.net/instream/ad_status.js	900.0 s	495 B
cdn.cookielaw.org/logos/static/ot_close.svg	86400.0 s	643 B
www.gstatic.com/recaptcha/api2/logo_48.png	604800.0 s	2.3 KiB

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
gray `article.wp-block-group > div.entry-content > div.organism > img.background-image`	www.docker.com/app/uploads/brand/background/gray-1536x793.png	28.6 KiB	17.4 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.

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

Estimated savings: 600 ms 460.7 KiB

URL	Transfer Size	Est Savings
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	362.6 KiB	179.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-WL2QLG5	167.1 KiB	81.9 KiB
www.docker.com/app/themes/Ponyo/dist/js/index.js?ver=342915518c6a51894837	121.6 KiB	81.5 KiB
cdn.cookielaw.org/scripttemplates/202306.2.0/otBannerSdk.js	97.4 KiB	50.3 KiB
assets.adobedtm.com/ba6d3e7c167e/6bf3c6b5f665/launch-55e2612a4c37.min.js	83.9 KiB	44.5 KiB
www.docker.com/wp/wp-includes/js/jquery/jquery.min.js?ver=3.7.1	34.6 KiB	23.4 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
Unattributable	3.8 s	174 ms	0.0 ms
www.docker.com/	3.1 s	997 ms	38 ms
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	551 ms	404 ms	86 ms
www.googletagmanager.com/gtm.js?id=GTM-WL2QLG5	329 ms	257 ms	61 ms
cdn.cookielaw.org/scripttemplates/202306.2.0/otBannerSdk.js	323 ms	195 ms	48 ms
js-agent.newrelic.com/nr-spa-1.312.1.min.js	261 ms	231 ms	9.9 ms
www.docker.com/app/themes/Ponyo/dist/js/index.js?ver=342915518c6a51894837	224 ms	179 ms	32 ms
assets.adobedtm.com/ba6d3e7c167e/6bf3c6b5f665/launch-55e2612a4c37.min.js	210 ms	172 ms	32 ms
www.docker.com/app/themes/Ponyo/dist/js/ponyo.js?ver=308081ab31238164a132	177 ms	78 ms	0.5 ms
www.docker.com/wp/wp-includes/js/jquery/jquery.min.js?ver=3.7.1	68 ms	45 ms	11 ms
/app/plugins/syntaxhighlighter/syntaxhighlighter3/scripts...	66 ms	63 ms	2.5 ms
www.youtube.com/s/player/57fefa84/www-widgetapi.vflset/www-widgetapi.js	58 ms	52 ms	2.9 ms
cdn.cookielaw.org/scripttemplates/otSDKStub.js	55 ms	44 ms	3.6 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
Other	4.2 s
Script Evaluation	3.1 s
Style & Layout	1.1 s
Rendering	399 ms
Script Parsing & Compilation	350 ms
Parse HTML & CSS	178 ms
Garbage Collection	142 ms

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: 0.0 ms 29.8 KiB

URL	Transfer Size	Est Savings
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …	19.6 KiB	17.3 KiB
www.docker.com/app/themes/Ponyo/dist/css/screen.css?ver=095f5c1f2a2197d8b78e	16.9 KiB	12.4 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
www.docker.com/app/uploads/2025/11/homepage-mcp-connect-condensed-1.gif	26.5 MiB
/app/uploads/brand/background/DOCKER_hero_loop_opacity-re...	11.6 MiB
www.docker.com/app/uploads/2024/12/Promo-box-image_White-paper_FA.svg	2.0 MiB
www.docker.com/app/uploads/2025/11/dev-prod-flow.svg	487.1 KiB
www.youtube.com/s/player/57fefa84/player_embed_es6.vflset/en_US/base.js	433.2 KiB
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	363.2 KiB
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	362.7 KiB
www.docker.com/app/uploads/2025/11/desktop-containers-application.svg	296.0 KiB
/s/_/ytembeds/_/js/k=ytembeds.base.en_US.I-saIP3mOa8.2021...	207.3 KiB
www.docker.com/app/themes/Ponyo/dist/fonts/ABCRepro-Bold.fe39dde5.woff2	199.2 KiB

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

	URL
header.site-header > div#docker-announcement-bar > div > img `header.site-header > div#docker-announcement-bar > div > img`	www.docker.com/app/uploads/2024/01/icon-new.svg

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

●Avoid long main-thread tasks 20 long tasks found

●Avoid non-composited animations 31 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 40 ms

●Server Backend Latencies 210 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 10 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○User Timing marks and measures

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
MCP `div.wp-block-ponyo-boone > div.wp-block-ponyo-tatiana > a.wp-block-ponyo-tab > div.tab-text`
Agents `div.wp-block-ponyo-boone > div.wp-block-ponyo-tatiana > a.wp-block-ponyo-tab > div.tab-text`
Containers `div.wp-block-ponyo-boone > div.wp-block-ponyo-tatiana > a.wp-block-ponyo-tab > div.tab-text`
Cookies Settings `div.container > div.wp-block-ponyo-franklin > div.wp-block-ponyo-foster > button#ot-sdk-btn`

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
Apache 2.0 freedom `div.wp-block-ponyo-erika > div.container > div.copy-container > h4.wp-block-ponyo-heading`
Five pillars of supply chain security `div.wp-block-ponyo-erika > div.container > div.copy-container > h4.wp-block-ponyo-heading`
Build once, run anywhere `div.wp-block-ponyo-erika > div.container > div.copy-container > h4.wp-block-ponyo-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.wp-block-group > header.site-header > div.wp-block-group > a.logo `div.wp-block-group > header.site-header > div.wp-block-group > a.logo`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`

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.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Failing Elements
Products Products Overview Docker Desktop Docker Hub Docker Scout Docker Build … `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`
Features Command Line Interface IDE Extensions Container Runtime Docker Extensi… `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`
Developers Documentation Getting Started Trainings Extensions SDK Community Ope… `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`
Pricing Personal Pro Team Business Premium Support and TAM Pricing FAQ Contact … `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`
Company About Us What is a Container Blog Why Docker Trust Customer Success Par… `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`
Languages English 日本語 `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`

These are opportunities to improve the experience of reading tabular or list data using 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

●Image elements have `[alt]` attributes

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●ARIA attributes are used as specified for the element's role

●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

●Document has a `<title>` element

●`<frame>` or `<iframe>` elements have a title

●`<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.

●`[lang]` attributes have a valid value

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

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

○`[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

○`<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

○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.

○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.

○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.

○Identical links have the same purpose.

○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.

100

Best Practices

●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 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

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.

Link destination	Link Text
cookiepedia.co.uk/giving-consent-to-cookies	More information

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`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

100

Best Practices

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.

3.55 s

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

3.55 s

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

16 ms

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

0.003

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

6.14 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.

17.44 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
assets.adobedtm.com/ba6d3e7c167e/6bf3c6b5f665/launch-55e2612a4c37.min.js	3600.0 s	84.1 KiB
cdn.cookielaw.org/scripttemplates/202306.2.0/otBannerSdk.js	86400.0 s	97.7 KiB
i.ytimg.com/vi_webp/21FE7_9DsBM/sddefault.webp	7200.0 s	17.7 KiB
cdn.cookielaw.org/logos/static/ot_company_logo.png	86400.0 s	19.1 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js	86400.0 s	9.1 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg	86400.0 s	2.5 KiB
/vr50ZXiY9tM1xNgVT2cLt0sGSdL_xuvVYA0fPtzpB9-LNE32KN7bvq75...	86400.0 s	2.0 KiB
static.doubleclick.net/instream/ad_status.js	900.0 s	495 B
cdn.cookielaw.org/logos/static/ot_close.svg	86400.0 s	643 B
www.gstatic.com/recaptcha/api2/logo_48.png	604800.0 s	2.3 KiB

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
www.docker.com/app/themes/Ponyo/dist/fonts/ABCRepro-Bold.fe39dde5.woff2	145 ms
www.docker.com/app/themes/Ponyo/dist/fonts/Inter-Medium.6dcbc9be.ttf	140 ms
www.docker.com/app/themes/Ponyo/dist/fonts/Inter-Regular.e89cb199.ttf	140 ms
www.docker.com/app/themes/Ponyo/dist/fonts/Inter-SemiBold.4d56bb21.ttf	140 ms
www.docker.com/app/themes/Ponyo/dist/fonts/ABCRepro-Medium.2e19b89f.woff2	140 ms
www.docker.com/app/themes/Ponyo/dist/fonts/Inter-Bold.88fa7ae3.ttf	130 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	50 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	40 ms

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

items: [map[reflowTime:13.542 source:map[type:text value:[unattributed]]] map[reflowTime:0.762 source:map[column:153 line:534 type:source-location url:https://www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js urlProvider:network]]]

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

lhId: page-0-VIDEO

nodeLabel: article.wp-block-group > div.entry-content > div.text-align__left > video.background-video

path: 1,HTML,1,BODY,4,DIV,0,DIV,1,MAIN,0,ARTICLE,0,DIV,0,DIV,0,VIDEO

selector: article.wp-block-group > div.entry-content > div.text-align__left > video.background-video

snippet: <video class="background-video" src="/app/uploads/brand/background/DOCKER_hero_loop_opacity-reduction-25percent…" autoplay="" muted="" loop="" playsinline="">

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

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.

URL	Transfer Size	Duration
cdn.cookielaw.org/scripttemplates/otSDKStub.js	9.1 KiB	273 ms
www.docker.com/wp/wp-includes/js/jquery/jquery.min.js?ver=3.7.1	35.0 KiB
www.docker.com/wp/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1	5.6 KiB
www.docker.com/app/themes/Ponyo/dist/css/screen.css?ver=095f5c1f2a2197d8b78e	17.3 KiB
/app/themes/Ponyo/dist/blocks/atoms/pill/pill-style.css?v...	835 B
/app/themes/Ponyo/dist/blocks/atoms/button/button-style.c...	1.7 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.

TTI

Diagnostics

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: 100 ms 460.6 KiB

URL	Transfer Size	Est Savings
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	362.6 KiB	179.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-WL2QLG5	167.1 KiB	81.9 KiB
www.docker.com/app/themes/Ponyo/dist/js/index.js?ver=342915518c6a51894837	121.6 KiB	81.5 KiB
cdn.cookielaw.org/scripttemplates/202306.2.0/otBannerSdk.js	97.4 KiB	50.3 KiB
assets.adobedtm.com/ba6d3e7c167e/6bf3c6b5f665/launch-55e2612a4c37.min.js	83.9 KiB	44.5 KiB
www.docker.com/wp/wp-includes/js/jquery/jquery.min.js?ver=3.7.1	34.6 KiB	23.4 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Estimated savings: 0.0 ms 29.5 KiB

URL	Transfer Size	Est Savings
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …	19.6 KiB	17.0 KiB
www.docker.com/app/themes/Ponyo/dist/css/screen.css?ver=095f5c1f2a2197d8b78e	16.9 KiB	12.5 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
www.docker.com/app/uploads/2025/11/homepage-mcp-connect-condensed-1.gif	26.5 MiB
/app/uploads/brand/background/DOCKER_hero_loop_opacity-re...	11.6 MiB
www.docker.com/app/uploads/2025/11/AgenticCompose-web-1080.mp4	3.6 MiB
www.docker.com/app/uploads/2024/12/Promo-box-image_White-paper_FA.svg	2.0 MiB
www.docker.com/app/uploads/2025/11/dev-prod-flow.svg	487.3 KiB
www.youtube.com/s/player/57fefa84/player_embed_es6.vflset/en_US/base.js	433.2 KiB
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	363.2 KiB
www.gstatic.com/recaptcha/releases/kUYUkUlSyqkjTSMaN2w3RaOh/recaptcha__en.js	362.7 KiB
www.docker.com/app/uploads/2025/11/desktop-containers-application.svg	296.2 KiB
/s/_/ytembeds/_/js/k=ytembeds.base.en_US.I-saIP3mOa8.2021...	207.6 KiB

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	847 ms
Other	799 ms
Style & Layout	268 ms
Script Parsing & Compilation	109 ms
Rendering	83 ms
Parse HTML & CSS	40 ms
Garbage Collection	24 ms

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

	URL
header.site-header > div#docker-announcement-bar > div > img `header.site-header > div#docker-announcement-bar > div > img`	www.docker.com/app/uploads/2024/01/icon-new.svg

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

●Max Potential First Input Delay 70 ms

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Improve image delivery

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●JavaScript execution time 0.8 s

●Avoid long main-thread tasks 5 long tasks found

●Avoid non-composited animations 6 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 40 ms

●Server Backend Latencies 110 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 11 layout shifts found

○INP breakdown

○User Timing marks and measures

Accessibility

Contrast

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

Failing Elements
MCP `div.wp-block-ponyo-boone > div.wp-block-ponyo-tatiana > a.wp-block-ponyo-tab > div.tab-text`
Agents `div.wp-block-ponyo-boone > div.wp-block-ponyo-tatiana > a.wp-block-ponyo-tab > div.tab-text`
Containers `div.wp-block-ponyo-boone > div.wp-block-ponyo-tatiana > a.wp-block-ponyo-tab > div.tab-text`
Cookies Settings `div.container > div.wp-block-ponyo-franklin > div.wp-block-ponyo-foster > button#ot-sdk-btn`

These are opportunities to improve the legibility of your content.

Navigation

Failing Elements
Apache 2.0 freedom `div.wp-block-ponyo-erika > div.container > div.copy-container > h4.wp-block-ponyo-heading`
Five pillars of supply chain security `div.wp-block-ponyo-erika > div.container > div.copy-container > h4.wp-block-ponyo-heading`
Build once, run anywhere `div.wp-block-ponyo-erika > div.container > div.copy-container > h4.wp-block-ponyo-heading`

These are opportunities to improve keyboard navigation in your application.

Names and labels

Failing Elements
div.wp-block-group > header.site-header > div.wp-block-group > a.logo `div.wp-block-group > header.site-header > div.wp-block-group > a.logo`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`
div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a `div.wp-block-ponyo-newsletter-social > ul.social-wrap > li > a`

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.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Failing Elements
Products Products Overview Docker Desktop Docker Hub Docker Scout Docker Build … `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`
Features Command Line Interface IDE Extensions Container Runtime Docker Extensi… `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`
Developers Documentation Getting Started Trainings Extensions SDK Community Ope… `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`
Pricing Personal Pro Team Business Premium Support and TAM Pricing FAQ Contact … `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`
Company About Us What is a Container Blog Why Docker Trust Customer Success Par… `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`
Languages English 日本語 `div.wp-block-ponyo-freddie > div.menu-container > div.wp-block-ponyo-faith > ul`

These are opportunities to improve the experience of reading tabular or list data using 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

●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 with `role="dialog"` or `role="alertdialog"` have accessible names.

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

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

●`<frame>` or `<iframe>` elements have a title

●`<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.

●`[lang]` attributes have a valid value

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

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

○`[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

○`<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.

○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.

○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.

○Identical links have the same purpose.

○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.

100

Best Practices

●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 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

SEO

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Link destination	Link Text
cookiepedia.co.uk/giving-consent-to-cookies	More information

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`

Browse & Analyze

Learn

Results for https://www.docker.com

Site Health

Top Priorities (5)

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Navigation

Names and labels

Tables and lists

Best Practices

SEO

Content Best Practices

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Navigation

Names and labels

Tables and lists

Best Practices

SEO

Content Best Practices

Keyboard Shortcuts