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

Audit breakdown by category with detailed findings.

99

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-solid-900.woff2?v=4a65910.0 ms155.0 KiB
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-brands-400.woff2?v=cbcf420.0 ms116.4 KiB
/media/templates/site/cassiopeia_proxmox/fonts/static/Ope...0.0 ms76.7 KiB
/media/templates/site/cassiopeia_proxmox/fonts/static/Lat...0.0 ms36.1 KiB
piwik.proxmox.com/matomo.js0.0 ms21.9 KiB
proxmox.com/images/proxmox/icons/proxmox_NEWS_light.svg0.0 ms15.1 KiB
proxmox.com/images/proxmox/icons/proxmox_SUPPORT_light.svg0.0 ms7.1 KiB
proxmox.com/images/proxmox/icons/proxmox_IMPLEMENTATION_light.svg0.0 ms4.4 KiB
proxmox.com/media/templates/site/cassiopeia/css/template.min.css?f62601604800.0 s38.5 KiB
proxmox.com/images/proxmox/proxmox-start-page-banner-orange.svg0.0 ms3.7 KiB
proxmox.com/images/proxmox/icons/proxmox_SUCCES_STORIES_light.svg0.0 ms3.6 KiB
proxmox.com/images/proxmox/icons/proxmox_COMMUNITY_light.svg0.0 ms3.6 KiB
proxmox.com/images/proxmox/icons/proxmox_DEVELOPER_light.svg0.0 ms3.5 KiB
proxmox.com/images/proxmox/icons/proxmox_TRAINING_light.svg0.0 ms3.4 KiB
proxmox.com/images/proxmox/icons/proxmox_DOCS_light.svg0.0 ms3.1 KiB
proxmox.com/media/system/css/joomla-fontawesome.min.css?f62601604800.0 s27.3 KiB
proxmox.com/images/proxmox/PROXMOX_WEB_HINTERGRUND_BRAUN.svg0.0 ms2.5 KiB
proxmox.com/media/plg_n3tcookieconsent/js/cookieconsent.js?f62601604800.0 s18.3 KiB
proxmox.com/images/proxmox/Proxmox-logo-white-orange-800.png604800.0 s17.1 KiB
proxmox.com/media/templates/site/cassiopeia_proxmox/css/user.css?f62601604800.0 s9.0 KiB
proxmox.com/media/vendor/bootstrap/js/popper.min.js?5.3.8604800.0 s8.0 KiB
/images/proxmox/Proxmox_logo_standard_hex_400px.png604800.0 s7.6 KiB
proxmox.com/media/vendor/bootstrap/js/dom.min.js?5.3.8604800.0 s7.0 KiB
proxmox.com/media/plg_n3tcookieconsent/css/n3tconsentmanager.min.css?f62601604800.0 s6.5 KiB
proxmox.com/media/plg_n3tcookieconsent/js/n3tconsentmanager.js?f62601604800.0 s5.2 KiB
proxmox.com/media/system/js/core.min.js?a3d8f8604800.0 s3.6 KiB
proxmox.com/media/system/js/fields/validate.min.js?75ac5d604800.0 s3.6 KiB
proxmox.com/media/vendor/bootstrap/js/dropdown.min.js?5.3.8604800.0 s2.9 KiB
proxmox.com/media/system/js/messages.min.js?9a4811604800.0 s2.2 KiB
/media/templates/site/cassiopeia/css/vendor/joomla-custom...604800.0 s2.0 KiB
proxmox.com/media/vendor/metismenujs/js/metismenujs.min.js?1.4.0604800.0 s2.0 KiB
proxmox.com/media/vendor/bootstrap/js/collapse.min.js?5.3.8604800.0 s1.9 KiB
proxmox.com/media/vendor/bootstrap/js/offcanvas.min.js?5.3.8604800.0 s1.9 KiB
/media/plg_system_jcepro/site/css/content.min.css?86aa028...604800.0 s1.5 KiB
proxmox.com/media/vendor/joomla-custom-elements/css/joomla-alert.css604800.0 s1.4 KiB
proxmox.com/media/com_finder/js/finder.min.js?755761604800.0 s1.2 KiB
proxmox.com/media/mod_proxmoxj4darkmode/js/darkmode.js?f62601604800.0 s1.1 KiB
proxmox.com/media/templates/site/cassiopeia/js/template.min.js?f62601604800.0 s1.0 KiB
/media/templates/site/cassiopeia/js/mod_menu/menu-metisme...604800.0 s883 B
proxmox.com/media/templates/site/cassiopeia_proxmox/js/user.js?f62601604800.0 s833 B
proxmox.com/media/mod_languages/css/template.min.css?f62601604800.0 s726 B
/media/templates/site/cassiopeia/css/global/colors_standa...604800.0 s676 B
proxmox.com/media/mod_languages/images/en_us.gif604800.0 s531 B
proxmox.com/media/mod_languages/images/de.gif604800.0 s503 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
value: no origins were preconnected
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

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
proxmox.com/en/http/1.1
proxmox.com/media/plg_n3tcookieconsent/js/n3tconsentmanager.js?f62601http/1.1
proxmox.com/media/system/css/joomla-fontawesome.min.css?f62601http/1.1
/media/templates/site/cassiopeia/css/global/colors_standa...http/1.1
proxmox.com/media/templates/site/cassiopeia/css/template.min.css?f62601http/1.1
proxmox.com/media/mod_languages/css/template.min.css?f62601http/1.1
/media/templates/site/cassiopeia/css/vendor/joomla-custom...http/1.1
proxmox.com/media/templates/site/cassiopeia_proxmox/css/user.css?f62601http/1.1
/media/plg_system_jcepro/site/css/content.min.css?86aa028...http/1.1
proxmox.com/media/plg_n3tcookieconsent/css/n3tconsentmanager.min.css?f62601http/1.1
proxmox.com/media/vendor/metismenujs/js/metismenujs.min.js?1.4.0http/1.1
proxmox.com/media/system/js/core.min.js?a3d8f8http/1.1
proxmox.com/media/templates/site/cassiopeia/js/template.min.js?f62601http/1.1
proxmox.com/media/vendor/bootstrap/js/offcanvas.min.js?5.3.8http/1.1
proxmox.com/media/vendor/bootstrap/js/dropdown.min.js?5.3.8http/1.1
proxmox.com/media/templates/site/cassiopeia_proxmox/js/user.js?f62601http/1.1
proxmox.com/media/com_finder/js/finder.min.js?755761http/1.1
proxmox.com/media/vendor/bootstrap/js/collapse.min.js?5.3.8http/1.1
/media/templates/site/cassiopeia/js/mod_menu/menu-metisme...http/1.1
proxmox.com/media/system/js/fields/validate.min.js?75ac5dhttp/1.1
proxmox.com/media/mod_proxmoxj4darkmode/js/darkmode.js?f62601http/1.1
proxmox.com/media/system/js/messages.min.js?9a4811http/1.1
proxmox.com/media/plg_n3tcookieconsent/js/cookieconsent.js?f62601http/1.1
/images/proxmox/Proxmox_logo_standard_hex_400px.pnghttp/1.1
proxmox.com/media/mod_languages/images/en_us.gifhttp/1.1
proxmox.com/media/mod_languages/images/de.gifhttp/1.1
proxmox.com/site.webmanifesthttp/1.1
proxmox.com/media/vendor/joomla-custom-elements/css/joomla-alert.csshttp/1.1
proxmox.com/media/vendor/bootstrap/js/dom.min.js?5.3.8http/1.1
proxmox.com/media/vendor/bootstrap/js/popper.min.js?5.3.8http/1.1
proxmox.com/images/proxmox/Proxmox-logo-white-orange-800.pnghttp/1.1
proxmox.com/images/proxmox/proxmox-start-page-banner-orange.svghttp/1.1
proxmox.com/images/proxmox/PROXMOX_WEB_HINTERGRUND_BRAUN.svghttp/1.1
/media/templates/site/cassiopeia_proxmox/fonts/static/Ope...http/1.1
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-solid-900.woff2?v=4a6591http/1.1
/media/templates/site/cassiopeia_proxmox/fonts/static/Lat...http/1.1
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-brands-400.woff2?v=cbcf42http/1.1
proxmox.com/images/proxmox/icons/proxmox_SUPPORT_light.svghttp/1.1
proxmox.com/images/proxmox/icons/proxmox_IMPLEMENTATION_light.svghttp/1.1
proxmox.com/images/proxmox/icons/proxmox_TRAINING_light.svghttp/1.1
proxmox.com/images/proxmox/icons/proxmox_DOCS_light.svghttp/1.1
proxmox.com/images/proxmox/icons/proxmox_SUCCES_STORIES_light.svghttp/1.1
proxmox.com/images/proxmox/icons/proxmox_COMMUNITY_light.svghttp/1.1
proxmox.com/images/proxmox/icons/proxmox_DEVELOPER_light.svghttp/1.1
proxmox.com/images/proxmox/icons/proxmox_NEWS_light.svghttp/1.1
proxmox.com/favicon.svghttp/1.1

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

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: 40 ms 61.7 KiB

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

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 9.8 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
Proxmox div.grid-child > div.menu-logo > a > img.logo
/images/proxmox/Proxmox_logo_standard_hex_400px.png

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 202 ms
URLTime Spent
proxmox.com/202 ms
proxmox.com/en/0.0 ms
Layout shift culprits
Optimize DOM size
Forced reflow
Improve image delivery
LCP breakdown
Optimize viewport for mobile
Time to Interactive 0.9 s
Max Potential First Input Delay 20 ms
Minify CSS
Reduce unused JavaScript
Avoids enormous network payloads Total size was 658 KiB
JavaScript execution time 0.0 s
Minimizes main-thread work 0.3 s
Avoid non-composited animations 1 animated element found
Network Requests
Network Round Trip Times 80 ms
Server Backend Latencies 60 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 120 ms
Avoid large layout shifts 3 layout shifts found
INP breakdown
LCP request discovery
User Timing marks and measures
Avoid long main-thread tasks
85

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.menu-headers > div.menu-search > div.dropdown > button.btn div.menu-headers > div.menu-search > div.dropdown > button.btn

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.footer-main-left > div > label.switch > input.mod_proxmox4jdarkmode__toggle div.footer-main-left > div > label.switch > input.mod_proxmox4jdarkmode__toggle

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.

Contrast

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Learn more div.grid-3-col > div.box-shadow > p.mt-auto > a.button-primary
Learn more div.grid-3-col > div.box-shadow > p.mt-auto > a.button-primary
Learn more div.grid-3-col > div.box-shadow > p.mt-auto > a.button-primary
Get support div.grid-4-col > div.box-shadow > p.mt-auto > a.button-secondary
Find a partner div.grid-4-col > div.box-shadow > p.mt-auto > a.button-secondary
See training courses div.grid-4-col > div.box-shadow > p.mt-auto > a.button-secondary
Read the docs div.grid-4-col > div.box-shadow > p.mt-auto > a.button-secondary
Read success stories div.grid-4-col > div.box-shadow > p.mt-auto > a.button-secondary
Get involved div.grid-4-col > div.box-shadow > p.mt-auto > a.button-secondary
Start contributing div.grid-4-col > div.box-shadow > p.mt-auto > a.button-secondary
Proxmox Datacenter Manager 1.0 div.grid-4-col > div.box-shadow > p > a
Proxmox Backup Server 4.1 div.grid-4-col > div.box-shadow > p > a
Proxmox VE 9.1 available div.grid-4-col > div.box-shadow > p > a
Proxmox Mail Gateway 9.0 div.grid-4-col > div.box-shadow > p > a
See all news div.grid-4-col > div.box-shadow > p.mt-auto > a.button-default
View customers div.grid-2-col > div.partner-description > p > a.button-secondary
Contact us div.wide > div.wide-content > p > a.button-primary
Subscribe div.grid-child > div.mod-listmonk-subscriber > form.form-validate > button.btn
Customize settings div#c-inr > div#c-inr-i > div#c-txt > a.cc-link
Privacy policy div#c-inr > div#c-inr-i > div#c-txt > a.cc-link
Reject all div#cm > div#c-inr > div#c-bns > button#c-s-bn
Accept all div#cm > div#c-inr > div#c-bns > button#c-p-bn

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
NEW: Version 9.1 div > div.grid-3-col > div.box-shadow > h5.new-version-tag
NEW: Version 4.1 div > div.grid-3-col > div.box-shadow > h5.new-version-tag
NEW: Version 1.0 div > div.grid-3-col > div.box-shadow > h5.new-version-tag

These are opportunities to improve keyboard navigation in your application.

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
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
`<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
Touch targets have sufficient size and spacing.
Document has a main landmark.
Deprecated ARIA roles were not used
ARIA IDs are unique
Identical links have the same purpose.
Elements with visible text labels have matching accessible names.
`[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
No form fields have multiple labels
`<frame>` or `<iframe>` elements have a title
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
`<input type="image">` elements have `[alt]` text
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
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.
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
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
Ensure proper origin isolation with COOP
Mitigate clickjacking with XFO or CSP
83

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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Customize settings div#c-inr > div#c-inr-i > div#c-txt > a.cc-link

To appear in search results, crawlers need access to your app.

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
robots.txt is valid
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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