Free Website SEO Checker
and Audit Tool
Analyze any website for SEO issues, performance, mobile usability and more. Get a complete audit with actionable insights. 100% free, with fair-use limits.
No registration requiredFull SEO analysis100% free forever
SEO score
Good, with fixes
47 checks · 2 to fix first
- SEO88
- Performance74
- Mobile92
- Security61
- Accessibility81
Fix these first
- Missing meta descriptionHigh
- Images without alt textMedium
Sample report
- Overview
- SEO
- Performance
- Mobile
- Security
- Accessibility
- Links
- Content
Website Audit Report
example.com
Sample data — not a real audit
Critical Issues
12
Warnings
28
Passed
156
Get a complete SEO audit in seconds
Our free website checker analyzes your site across 47 technical, on-page, performance, mobile and security checks and gives you clear, actionable recommendations — with the evidence behind every finding.
- Detailed issue explanations
- Prioritized recommendations
- Visual reports and charts
- No signup required
Powerful SEO Tools All in One Place
Everything you need to analyze, monitor and improve websites. Completely free, no credit card required.
See all tools- Website CrawlerScan your entire website for SEO issues
- Rank TrackingTrack rankings from your own Search Console dataWorks with documented limits
- Backlink AnalysisCheck backlinks you know aboutWorks with documented limits
- Keyword ResearchKeywords from your pages and Search ConsoleWorks with documented limits
- Competitor AnalysisCompare technical SEO side by side
- Uptime MonitoringMonitor website availability
Frequently asked questions
Is SkySiteAudit really free?
Yes. There are no paid plans, trials or upgrade buttons. To keep the service sustainable we publish fair-use limits — for example 20 single-page scans per day without an account.
Do I need to log in?
No. Single-page audits work without an account. A free account lets you save projects, crawl whole sites, track history and set up monitoring.
What can be scanned?
Any publicly reachable website on standard web ports. SkySiteAudit does not log in to websites, never scans private networks and respects robots.txt.
Can I monitor any site?
Uptime monitoring and larger crawls are only available for websites whose ownership you have verified (DNS, meta tag or file).
Where do the metrics come from?
Every number comes from SkySiteAudit's own requests and a headless browser on our server, and is labelled with its source and time. We never show invented rankings, backlink counts or search volumes. How scoring works.
How are limits enforced?
Per IP address for visitors and per account for registered users, with daily counters. Limits are shown before you hit them, and reset automatically.