B — https://proxmox.com | BeaverCheck Audit

Site Health

Score: 84 / 100

Based on 8 categories, 0 sections

Fast site — your users get a smooth experience.

Good foundation, but a few gaps could be exploited.

Several issues make your site difficult for assistive technology users.

Well-optimized for search — your content is discoverable.

Solid infrastructure — fast server responses across the board.

Strong compliance posture across regulations.

Rich content metadata — your pages look great everywhere.

Lean and efficient — low environmental impact per visit.

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.

How the composite score is calculated

How you compare

Joomla · 12 peers

You 84

Avg 74

+10 above average

0 50 100

Better than 91% of Joomla sites See full Joomla benchmark →

Bootstrap · 823 peers

You 84

Avg 73

+11 above average

0 50 100

Better than 99% of Bootstrap sites See full Bootstrap benchmark →

Top Priorities (5)

5 button(s) with no accessible text

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Link & Button Quality

Certificate expires soon (21 days remaining)

Security gaps expose your site and users to attacks, eroding trust.

Security › TLS & Certificates

Cookie '2f4d6fdc46bcd694b9e7af987293628a' has no SameSite attribute

Security gaps expose your site and users to attacks, eroding trust.

Security › Cookie Security

Cross-Origin-Embedder-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

External script from piwik.proxmox.com lacks integrity attribute

Security gaps expose your site and users to attacks, eroding trust.

Security › Subresource Integrity

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

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Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fproxmox.com)](https://beavercheck.com/results/467f3705-863b-4764-b766-0b8a6b2937d7)

HTML

<a href="https://beavercheck.com/results/467f3705-863b-4764-b766-0b8a6b2937d7"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fproxmox.com" alt="BeaverCheck Score"></a>

Image URL

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

This badge auto-updates with your latest scan result.

What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Addressing the critical issues below would have the most immediate impact on your audience reach.

1 accessibility issue excludes users who rely on assistive technology.

4 security gaps detected — browsers may warn visitors about your site.

Conversion Barriers

5 warning

5 barrier(s) likely increasing bounce by ~14%.

Speed (1)

Page loads in 2.7s

+5% bounce

Every additional 100ms above 2.5s costs conversions — you're 206ms over

Fix: Target <2.5s LCP: defer non-critical scripts and optimize the hero image

Trust (2)

No HSTS header

+1% bounce

Returning visitors are briefly exposed to downgrade attacks on first request

Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Content (1)

Content is hard to read

+2% bounce

Graduate-level reading difficulty — limits the addressable audience for product or blog pages

Fix: Shorten sentences; replace jargon with plain language; target Flesch ease ≥60

Navigation (1)

No skip-to-content link

+1% bounce

Keyboard and screen-reader users must tab through the entire header on every page

Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

£263 investment → £303/month returns + GBP 18,050,000 risk avoided

Payback period: < 1 month First-year ROI: +1284%

Investment

£263

4h · 5 findings

Monthly returns

£303 /mo

~£3,634 / year

Conversions recovered £303
Bandwidth savings £0.12

Regulatory risk avoided

GBP 18,050,000

if kept compliant

UK GDPR GBP 17,500,000
PECR GBP 500,000
Equality Act 2010 GBP 50,000

Payback period

0 12mo 24mo

£150 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

£263

3.5 developer hours at £75/hr

Based on United Kingdom rates (£75/hr)

Quick wins

£150 4 fixes in ~120 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Custom rate

£ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

£1,504,167 / month at risk

~£18,050,001 / year if left unfixed

Compliance Risk

£18,050,000

UK GDPRPECREquality Act 2010

No privacy policy link detected
UK GDPR: GBP 10,000 – GBP 17,500,000
Trackers detected but no cookie policy found
UK GDPR: GBP 10,000 – GBP 17,500,000
Trackers detected but no cookie policy found
PECR: GBP 1,000 – GBP 500,000

+5 more

Bandwidth Waste

£0.12 /mo

1888.3 MB/mo × 0.063 GBP/GB

Optimize transfer: save ~189 KB per page load
Saves £0.12/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue

Current bounce (est.)

After fixes (est.)

Estimated bounce reduction

Fix 1 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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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.

2.41 s

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

2.71 s

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

5 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.

2.73 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.

2.71 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.

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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.

Request	Cache TTL	Transfer Size
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-solid-900.woff2?v=4a6591	0.0 ms	155.0 KiB
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-brands-400.woff2?v=cbcf42	0.0 ms	116.4 KiB
/media/templates/site/cassiopeia_proxmox/fonts/static/Ope...	0.0 ms	76.7 KiB
/media/templates/site/cassiopeia_proxmox/fonts/static/Lat...	0.0 ms	36.1 KiB
piwik.proxmox.com/matomo.js	0.0 ms	21.9 KiB
proxmox.com/media/templates/site/cassiopeia/css/template.min.css?f62601	604800.0 s	38.5 KiB
proxmox.com/images/proxmox/proxmox-start-page-banner-orange.svg	0.0 ms	3.7 KiB
proxmox.com/media/system/css/joomla-fontawesome.min.css?f62601	604800.0 s	27.3 KiB
proxmox.com/images/proxmox/PROXMOX_WEB_HINTERGRUND_BRAUN.svg	0.0 ms	2.5 KiB
proxmox.com/media/plg_n3tcookieconsent/js/cookieconsent.js?f62601	604800.0 s	18.3 KiB
proxmox.com/images/proxmox/Proxmox-logo-white-orange-800.png	604800.0 s	17.1 KiB
proxmox.com/media/templates/site/cassiopeia_proxmox/css/user.css?f62601	604800.0 s	9.0 KiB
proxmox.com/media/vendor/bootstrap/js/popper.min.js?5.3.8	604800.0 s	8.0 KiB
/images/proxmox/Proxmox_logo_standard_hex_400px.png	604800.0 s	7.6 KiB
proxmox.com/media/vendor/bootstrap/js/dom.min.js?5.3.8	604800.0 s	7.0 KiB
proxmox.com/media/plg_n3tcookieconsent/css/n3tconsentmanager.min.css?f62601	604800.0 s	6.5 KiB
proxmox.com/media/plg_n3tcookieconsent/js/n3tconsentmanager.js?f62601	604800.0 s	5.2 KiB
proxmox.com/media/system/js/core.min.js?a3d8f8	604800.0 s	3.6 KiB
proxmox.com/media/system/js/fields/validate.min.js?75ac5d	604800.0 s	3.6 KiB
proxmox.com/media/vendor/bootstrap/js/dropdown.min.js?5.3.8	604800.0 s	2.9 KiB
proxmox.com/media/system/js/messages.min.js?9a4811	604800.0 s	2.2 KiB
/media/templates/site/cassiopeia/css/vendor/joomla-custom...	604800.0 s	2.0 KiB
proxmox.com/media/vendor/metismenujs/js/metismenujs.min.js?1.4.0	604800.0 s	2.0 KiB
proxmox.com/media/vendor/bootstrap/js/collapse.min.js?5.3.8	604800.0 s	1.9 KiB
proxmox.com/media/vendor/bootstrap/js/offcanvas.min.js?5.3.8	604800.0 s	1.9 KiB
/media/plg_system_jcepro/site/css/content.min.css?86aa028...	604800.0 s	1.5 KiB
proxmox.com/media/vendor/joomla-custom-elements/css/joomla-alert.css	604800.0 s	1.4 KiB
proxmox.com/media/com_finder/js/finder.min.js?755761	604800.0 s	1.2 KiB
proxmox.com/media/mod_proxmoxj4darkmode/js/darkmode.js?f62601	604800.0 s	1.1 KiB
proxmox.com/media/templates/site/cassiopeia/js/template.min.js?f62601	604800.0 s	1.0 KiB
/media/templates/site/cassiopeia/js/mod_menu/menu-metisme...	604800.0 s	883 B
proxmox.com/media/templates/site/cassiopeia_proxmox/js/user.js?f62601	604800.0 s	833 B
proxmox.com/media/mod_languages/css/template.min.css?f62601	604800.0 s	726 B
/media/templates/site/cassiopeia/css/global/colors_standa...	604800.0 s	676 B
proxmox.com/media/mod_languages/images/en_us.gif	604800.0 s	531 B
proxmox.com/media/mod_languages/images/de.gif	604800.0 s	503 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.

URL	Est Savings
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-solid-900.woff2?v=4a6591	320 ms
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-brands-400.woff2?v=cbcf42	245 ms
/media/templates/site/cassiopeia_proxmox/fonts/static/Ope...	240 ms
/media/templates/site/cassiopeia_proxmox/fonts/static/Lat...	165 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-DIV

nodeLabel: Simplify your data center Secure, flexible, and reliable open-source enterpris…

path: 1,HTML,1,BODY,1,DIV,0,DIV,0,DIV

selector: body.site > div.site-grid > div.container-banner > div#mod-455

snippet: <div id="mod-455">

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

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
proxmox.com/media/templates/site/cassiopeia_proxmox/js/user.js?f62601	833 B	228 ms
proxmox.com/media/system/js/core.min.js?a3d8f8	3.6 KiB	228 ms
proxmox.com/media/plg_n3tcookieconsent/css/n3tconsentmanager.min.css?f62601	6.5 KiB	378 ms
/media/plg_system_jcepro/site/css/content.min.css?86aa028...	1.5 KiB	228 ms
proxmox.com/media/templates/site/cassiopeia_proxmox/css/user.css?f62601	9.0 KiB	828 ms
/media/templates/site/cassiopeia/css/vendor/joomla-custom...	2.0 KiB	528 ms
proxmox.com/media/mod_languages/css/template.min.css?f62601	726 B	528 ms
proxmox.com/media/templates/site/cassiopeia/css/template.min.css?f62601	38.5 KiB	1.6 s
/media/templates/site/cassiopeia/css/global/colors_standa...	676 B	528 ms
proxmox.com/media/system/css/joomla-fontawesome.min.css?f62601	27.3 KiB	1.1 s
proxmox.com/media/plg_n3tcookieconsent/js/n3tconsentmanager.js?f62601	5.2 KiB	378 ms
proxmox.com/media/vendor/joomla-custom-elements/css/joomla-alert.css	1.4 KiB	228 ms

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.

URL	Protocol
proxmox.com/en/	http/1.1
proxmox.com/media/plg_n3tcookieconsent/js/n3tconsentmanager.js?f62601	http/1.1
proxmox.com/media/system/css/joomla-fontawesome.min.css?f62601	http/1.1
/media/templates/site/cassiopeia/css/global/colors_standa...	http/1.1
proxmox.com/media/templates/site/cassiopeia/css/template.min.css?f62601	http/1.1
proxmox.com/media/mod_languages/css/template.min.css?f62601	http/1.1
/media/templates/site/cassiopeia/css/vendor/joomla-custom...	http/1.1
proxmox.com/media/templates/site/cassiopeia_proxmox/css/user.css?f62601	http/1.1
/media/plg_system_jcepro/site/css/content.min.css?86aa028...	http/1.1
proxmox.com/media/plg_n3tcookieconsent/css/n3tconsentmanager.min.css?f62601	http/1.1
proxmox.com/media/vendor/metismenujs/js/metismenujs.min.js?1.4.0	http/1.1
proxmox.com/media/system/js/core.min.js?a3d8f8	http/1.1
proxmox.com/media/templates/site/cassiopeia/js/template.min.js?f62601	http/1.1
proxmox.com/media/vendor/bootstrap/js/offcanvas.min.js?5.3.8	http/1.1
proxmox.com/media/vendor/bootstrap/js/dropdown.min.js?5.3.8	http/1.1
proxmox.com/media/templates/site/cassiopeia_proxmox/js/user.js?f62601	http/1.1
proxmox.com/media/com_finder/js/finder.min.js?755761	http/1.1
proxmox.com/media/vendor/bootstrap/js/collapse.min.js?5.3.8	http/1.1
/media/templates/site/cassiopeia/js/mod_menu/menu-metisme...	http/1.1
proxmox.com/media/system/js/fields/validate.min.js?75ac5d	http/1.1
proxmox.com/media/mod_proxmoxj4darkmode/js/darkmode.js?f62601	http/1.1
proxmox.com/media/system/js/messages.min.js?9a4811	http/1.1
proxmox.com/media/plg_n3tcookieconsent/js/cookieconsent.js?f62601	http/1.1
/images/proxmox/Proxmox_logo_standard_hex_400px.png	http/1.1
proxmox.com/media/mod_languages/images/en_us.gif	http/1.1
proxmox.com/media/mod_languages/images/de.gif	http/1.1
proxmox.com/site.webmanifest	http/1.1
proxmox.com/media/vendor/joomla-custom-elements/css/joomla-alert.css	http/1.1
proxmox.com/media/vendor/bootstrap/js/dom.min.js?5.3.8	http/1.1
proxmox.com/media/vendor/bootstrap/js/popper.min.js?5.3.8	http/1.1
proxmox.com/images/proxmox/Proxmox-logo-white-orange-800.png	http/1.1
proxmox.com/images/proxmox/proxmox-start-page-banner-orange.svg	http/1.1
proxmox.com/images/proxmox/PROXMOX_WEB_HINTERGRUND_BRAUN.svg	http/1.1
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-solid-900.woff2?v=4a6591	http/1.1
/media/templates/site/cassiopeia_proxmox/fonts/static/Ope...	http/1.1
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-brands-400.woff2?v=cbcf42	http/1.1
/media/templates/site/cassiopeia_proxmox/fonts/static/Lat...	http/1.1
proxmox.com/favicon.svg	http/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: 590 ms 61.7 KiB

URL	Transfer Size	Est Savings
proxmox.com/media/templates/site/cassiopeia/css/template.min.css?f62601	38.1 KiB	35.4 KiB
proxmox.com/media/system/css/joomla-fontawesome.min.css?f62601	26.8 KiB	26.3 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 reason	Failure 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

URL	Transfer Size	Est Savings
proxmox.com/media/plg_n3tcookieconsent/js/cookieconsent.js?f62601	17.9 KiB	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.menu-container > div.menu-logo > a > img.logo`	/images/proxmox/Proxmox_logo_standard_hex_400px.png
Proxmox `div#offcanvas-navbar387 > div.offcanvas-header > 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: 752 ms

URL	Time Spent
proxmox.com/	752 ms
proxmox.com/en/	0.0 ms

●Time to Interactive 2.7 s

●Layout shift culprits

●Optimize DOM size

●Forced reflow

●Improve image delivery

●LCP breakdown

●Optimize viewport for mobile

●Max Potential First Input Delay 60 ms

●Minify CSS

●Reduce unused JavaScript

●Avoids enormous network payloads Total size was 615 KiB

●JavaScript execution time 0.1 s

●Minimizes main-thread work 1.1 s

●Avoid long main-thread tasks 3 long tasks found

●Avoid non-composited animations 1 animated element found

●Network Requests

●Network Round Trip Times 80 ms

●Server Backend Latencies 40 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 120 ms

○INP breakdown

○User Timing marks and measures

○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.

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`
div.menu-headers > div.offcanvas-menu > nav > button.btn `div.menu-headers > div.offcanvas-menu > nav > 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

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.

Link destination	Link Text
proxmox.com/en/products/proxmox-virtual-environment/overview	Learn more
proxmox.com/en/products/proxmox-backup-server/overview	Learn more
proxmox.com/en/products/proxmox-datacenter-manager/overview	Learn more

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`

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.

605 ms

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

892 ms

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

0 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.

923 ms

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

892 ms

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Source: Google web.dev / Lighthouse

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.

Request	Cache TTL	Transfer Size
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-solid-900.woff2?v=4a6591	0.0 ms	155.0 KiB
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-brands-400.woff2?v=cbcf42	0.0 ms	116.4 KiB
/media/templates/site/cassiopeia_proxmox/fonts/static/Ope...	0.0 ms	76.7 KiB
/media/templates/site/cassiopeia_proxmox/fonts/static/Lat...	0.0 ms	36.1 KiB
piwik.proxmox.com/matomo.js	0.0 ms	21.9 KiB
proxmox.com/images/proxmox/icons/proxmox_NEWS_light.svg	0.0 ms	15.1 KiB
proxmox.com/images/proxmox/icons/proxmox_SUPPORT_light.svg	0.0 ms	7.1 KiB
proxmox.com/images/proxmox/icons/proxmox_IMPLEMENTATION_light.svg	0.0 ms	4.4 KiB
proxmox.com/media/templates/site/cassiopeia/css/template.min.css?f62601	604800.0 s	38.5 KiB
proxmox.com/images/proxmox/proxmox-start-page-banner-orange.svg	0.0 ms	3.7 KiB
proxmox.com/images/proxmox/icons/proxmox_SUCCES_STORIES_light.svg	0.0 ms	3.6 KiB
proxmox.com/images/proxmox/icons/proxmox_COMMUNITY_light.svg	0.0 ms	3.6 KiB
proxmox.com/images/proxmox/icons/proxmox_DEVELOPER_light.svg	0.0 ms	3.5 KiB
proxmox.com/images/proxmox/icons/proxmox_TRAINING_light.svg	0.0 ms	3.4 KiB
proxmox.com/images/proxmox/icons/proxmox_DOCS_light.svg	0.0 ms	3.1 KiB
proxmox.com/media/system/css/joomla-fontawesome.min.css?f62601	604800.0 s	27.3 KiB
proxmox.com/images/proxmox/PROXMOX_WEB_HINTERGRUND_BRAUN.svg	0.0 ms	2.5 KiB
proxmox.com/media/plg_n3tcookieconsent/js/cookieconsent.js?f62601	604800.0 s	18.3 KiB
proxmox.com/images/proxmox/Proxmox-logo-white-orange-800.png	604800.0 s	17.1 KiB
proxmox.com/media/templates/site/cassiopeia_proxmox/css/user.css?f62601	604800.0 s	9.0 KiB
proxmox.com/media/vendor/bootstrap/js/popper.min.js?5.3.8	604800.0 s	8.0 KiB
/images/proxmox/Proxmox_logo_standard_hex_400px.png	604800.0 s	7.6 KiB
proxmox.com/media/vendor/bootstrap/js/dom.min.js?5.3.8	604800.0 s	7.0 KiB
proxmox.com/media/plg_n3tcookieconsent/css/n3tconsentmanager.min.css?f62601	604800.0 s	6.5 KiB
proxmox.com/media/plg_n3tcookieconsent/js/n3tconsentmanager.js?f62601	604800.0 s	5.2 KiB
proxmox.com/media/system/js/core.min.js?a3d8f8	604800.0 s	3.6 KiB
proxmox.com/media/system/js/fields/validate.min.js?75ac5d	604800.0 s	3.6 KiB
proxmox.com/media/vendor/bootstrap/js/dropdown.min.js?5.3.8	604800.0 s	2.9 KiB
proxmox.com/media/system/js/messages.min.js?9a4811	604800.0 s	2.2 KiB
/media/templates/site/cassiopeia/css/vendor/joomla-custom...	604800.0 s	2.0 KiB
proxmox.com/media/vendor/metismenujs/js/metismenujs.min.js?1.4.0	604800.0 s	2.0 KiB
proxmox.com/media/vendor/bootstrap/js/collapse.min.js?5.3.8	604800.0 s	1.9 KiB
proxmox.com/media/vendor/bootstrap/js/offcanvas.min.js?5.3.8	604800.0 s	1.9 KiB
/media/plg_system_jcepro/site/css/content.min.css?86aa028...	604800.0 s	1.5 KiB
proxmox.com/media/vendor/joomla-custom-elements/css/joomla-alert.css	604800.0 s	1.4 KiB
proxmox.com/media/com_finder/js/finder.min.js?755761	604800.0 s	1.2 KiB
proxmox.com/media/mod_proxmoxj4darkmode/js/darkmode.js?f62601	604800.0 s	1.1 KiB
proxmox.com/media/templates/site/cassiopeia/js/template.min.js?f62601	604800.0 s	1.0 KiB
/media/templates/site/cassiopeia/js/mod_menu/menu-metisme...	604800.0 s	883 B
proxmox.com/media/templates/site/cassiopeia_proxmox/js/user.js?f62601	604800.0 s	833 B
proxmox.com/media/mod_languages/css/template.min.css?f62601	604800.0 s	726 B
/media/templates/site/cassiopeia/css/global/colors_standa...	604800.0 s	676 B
proxmox.com/media/mod_languages/images/en_us.gif	604800.0 s	531 B
proxmox.com/media/mod_languages/images/de.gif	604800.0 s	503 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.

URL	Est Savings
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-solid-900.woff2?v=4a6591	330 ms
proxmox.com/media/vendor/fontawesome-free/webfonts/fa-brands-400.woff2?v=cbcf42	245 ms
/media/templates/site/cassiopeia_proxmox/fonts/static/Ope...	240 ms
/media/templates/site/cassiopeia_proxmox/fonts/static/Lat...	170 ms

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.

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

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
proxmox.com/media/templates/site/cassiopeia_proxmox/js/user.js?f62601	833 B	118 ms
proxmox.com/media/system/js/core.min.js?a3d8f8	3.6 KiB	118 ms
proxmox.com/media/plg_n3tcookieconsent/css/n3tconsentmanager.min.css?f62601	6.5 KiB	118 ms
/media/plg_system_jcepro/site/css/content.min.css?86aa028...	1.5 KiB	118 ms
proxmox.com/media/templates/site/cassiopeia_proxmox/css/user.css?f62601	9.0 KiB	238 ms
/media/templates/site/cassiopeia/css/vendor/joomla-custom...	2.0 KiB	198 ms
proxmox.com/media/mod_languages/css/template.min.css?f62601	726 B	198 ms
proxmox.com/media/templates/site/cassiopeia/css/template.min.css?f62601	38.5 KiB	398 ms
/media/templates/site/cassiopeia/css/global/colors_standa...	676 B	198 ms
proxmox.com/media/system/css/joomla-fontawesome.min.css?f62601	27.3 KiB	238 ms
proxmox.com/media/plg_n3tcookieconsent/js/n3tconsentmanager.js?f62601	5.2 KiB	118 ms
proxmox.com/media/vendor/joomla-custom-elements/css/joomla-alert.css	1.4 KiB	118 ms

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.

URL	Protocol
proxmox.com/en/	http/1.1
proxmox.com/media/plg_n3tcookieconsent/js/n3tconsentmanager.js?f62601	http/1.1
proxmox.com/media/system/css/joomla-fontawesome.min.css?f62601	http/1.1
/media/templates/site/cassiopeia/css/global/colors_standa...	http/1.1
proxmox.com/media/templates/site/cassiopeia/css/template.min.css?f62601	http/1.1
proxmox.com/media/mod_languages/css/template.min.css?f62601	http/1.1
/media/templates/site/cassiopeia/css/vendor/joomla-custom...	http/1.1
proxmox.com/media/templates/site/cassiopeia_proxmox/css/user.css?f62601	http/1.1
/media/plg_system_jcepro/site/css/content.min.css?86aa028...	http/1.1
proxmox.com/media/plg_n3tcookieconsent/css/n3tconsentmanager.min.css?f62601	http/1.1
proxmox.com/media/vendor/metismenujs/js/metismenujs.min.js?1.4.0	http/1.1
proxmox.com/media/system/js/core.min.js?a3d8f8	http/1.1
proxmox.com/media/templates/site/cassiopeia/js/template.min.js?f62601	http/1.1
proxmox.com/media/vendor/bootstrap/js/offcanvas.min.js?5.3.8	http/1.1
proxmox.com/media/vendor/bootstrap/js/dropdown.min.js?5.3.8	http/1.1
proxmox.com/media/templates/site/cassiopeia_proxmox/js/user.js?f62601	http/1.1
proxmox.com/media/com_finder/js/finder.min.js?755761	http/1.1
proxmox.com/media/vendor/bootstrap/js/collapse.min.js?5.3.8	http/1.1
/media/templates/site/cassiopeia/js/mod_menu/menu-metisme...	http/1.1
proxmox.com/media/system/js/fields/validate.min.js?75ac5d	http/1.1
proxmox.com/media/mod_proxmoxj4darkmode/js/darkmode.js?f62601	http/1.1
proxmox.com/media/system/js/messages.min.js?9a4811	http/1.1
proxmox.com/media/plg_n3tcookieconsent/js/cookieconsent.js?f62601	http/1.1
/images/proxmox/Proxmox_logo_standard_hex_400px.png	http/1.1
proxmox.com/media/mod_languages/images/en_us.gif	http/1.1
proxmox.com/media/mod_languages/images/de.gif	http/1.1
proxmox.com/site.webmanifest	http/1.1
proxmox.com/media/vendor/joomla-custom-elements/css/joomla-alert.css	http/1.1
proxmox.com/media/vendor/bootstrap/js/dom.min.js?5.3.8	http/1.1
proxmox.com/media/vendor/bootstrap/js/popper.min.js?5.3.8	http/1.1
proxmox.com/images/proxmox/Proxmox-logo-white-orange-800.png	http/1.1
proxmox.com/images/proxmox/proxmox-start-page-banner-orange.svg	http/1.1
proxmox.com/images/proxmox/PROXMOX_WEB_HINTERGRUND_BRAUN.svg	http/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=4a6591	http/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=cbcf42	http/1.1
proxmox.com/images/proxmox/icons/proxmox_SUPPORT_light.svg	http/1.1
proxmox.com/images/proxmox/icons/proxmox_IMPLEMENTATION_light.svg	http/1.1
proxmox.com/images/proxmox/icons/proxmox_TRAINING_light.svg	http/1.1
proxmox.com/images/proxmox/icons/proxmox_DOCS_light.svg	http/1.1
proxmox.com/images/proxmox/icons/proxmox_SUCCES_STORIES_light.svg	http/1.1
proxmox.com/images/proxmox/icons/proxmox_COMMUNITY_light.svg	http/1.1
proxmox.com/images/proxmox/icons/proxmox_DEVELOPER_light.svg	http/1.1
proxmox.com/images/proxmox/icons/proxmox_NEWS_light.svg	http/1.1
proxmox.com/favicon.svg	http/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

URL	Transfer Size	Est Savings
proxmox.com/media/templates/site/cassiopeia/css/template.min.css?f62601	38.1 KiB	35.3 KiB
proxmox.com/media/system/css/joomla-fontawesome.min.css?f62601	26.8 KiB	26.3 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 reason	Failure 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

URL	Transfer Size	Est Savings
proxmox.com/media/plg_n3tcookieconsent/js/cookieconsent.js?f62601	17.9 KiB	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

URL	Time 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

Accessibility

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

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

SEO

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.

Link destination	Link Text
proxmox.com/en/products/proxmox-virtual-environment/overview	Learn more
proxmox.com/en/products/proxmox-backup-server/overview	Learn more
proxmox.com/en/products/proxmox-datacenter-manager/overview	Learn more

Format your HTML in a way that enables crawlers to better understand your app’s content.

Crawling and Indexing

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`

Results for https://proxmox.com

Site Health

How you compare

Top Priorities (5)

Fix Priority Matrix

Quick Wins

Strategic

Easy Improvements

Deprioritize

What fixing these means

Conversion Barriers

Speed (1)

Trust (2)

Content (1)

Navigation (1)

Return on Investment

Investment

Monthly returns

Regulatory risk avoided

Payback period

Estimated Remediation Cost

Cost by category

Cost by effort level

What Inaction Is Costing You

Compliance Risk

Bandwidth Waste

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Names and labels

Contrast

Navigation

Best Practices

SEO

Content Best Practices

Crawling and Indexing

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Names and labels

Contrast

Navigation

Best Practices

SEO

Content Best Practices

Crawling and Indexing

Keyboard Shortcuts