- 1Choose file
- 2Adjust
- 3Download
Desktop Lighthouse Audit online, free
Run a server-side Google Lighthouse audit on any public URL and score performance, accessibility, best practices, and SEO with actionable diagnostics.
- Encrypted server job — auto-deleted in 24 h
- Free, no sign-up, no watermark
Set up on this page
- Device Viewport: desktop
How to use Lighthouse SEO & Performance Audit · Lighthouse SEO & Performance Audit — frequently asked questions
How to use Desktop Lighthouse Audit
- 1
Enter the page URL
Paste the address you want to check, or paste its HTML if the tool offers that mode.
- 2
Check the preset
Device Viewport is set to desktop. You can change it before running.
- 3
Run the tool
Press start. The job runs on the server.
- 4
Read the result
The result is delivered as JSON, TXT.
What Lighthouse SEO & Performance Audit can do
- Device Viewport: mobile and desktop
- Audit Categories — Lighthouse category groups to run
- Encrypted server processing; files are deleted automatically within 24 hours
- Free with no sign-up, no watermark and no daily limit
Lighthouse SEO & Performance Audit — frequently asked questions
What does this page set for Desktop Lighthouse Audit?
Device Viewport: desktop. All of these stay editable.
Is my file uploaded?
This tool runs on the server. Files are processed in an encrypted job and deleted automatically within 24 hours.
Are there limits?
It takes one input per run. Server jobs accept up to 0 GB. A job can run for up to 120 seconds.
What is Google Lighthouse?
Lighthouse is Google's open-source auditing engine that loads a page in a controlled headless browser and scores it across performance, accessibility, best practices, and SEO, returning concrete opportunities and diagnostics for each category.
How is this different from an on-device check?
A full Lighthouse run needs a real headless Chrome instance, so this audit executes on our servers against the public URL you provide, then returns the structured JSON report. No browser extension or install is required on your side.
Related tools
- Core Web Vitals Risk CheckFind markup that risks poor LCP, CLS and FCP. It reads the HTML and does not measure the page; use Lighthouse Audit for measured values.
- Page Speed SnapshotPageSpeed Insights summary for a URL — performance, accessibility, best-practices and SEO scores, Core Web Vitals and top fixes.
- On-Page SEO Health AuditorComprehensive audit of 45+ on-page SEO signals: title length, meta description, H1-H6 headings, canonicals, alt tags, Open Graph, schema, and robots directives.
- Page Speed Waterfall AnalyzerSimulate and visualize asset loading waterfall, TTFB latency, DNS resolution, and resource weight breakdown.
- ASN & BGP Route LookupInspect Autonomous System Numbers, BGP routing prefixes, and ISP origins.
- Broken Link CheckerCheck up to 200 links on one page and report broken, unreachable and redirecting links with status codes.
- Website Cache & Compression AuditorAnalyze HTTP cache headers (Cache-Control, ETag, max-age) and content compression ratios (Brotli, Gzip, Zstandard).
- Canonical Tag & Loop InspectorVerify canonical URL tags, detect self-referential links, cross-domain mismatches, loop redirects, and HTTP canonical headers.