On-Page SEO
Title tags, meta descriptions, headings, internal links, broken links, canonical, indexability, schema, robots & sitemap.
100% freeNo signup~2 min results
Free website SEO audit — instant report
Analyze any website for on-page SEO, Core Web Vitals, security, and technical issues. Powered by Google Lighthouse, CrUX, and AI expert recommendations.
- Google Lighthouse & CrUX field data
- Mozilla Observatory security grade
- Safe Browsing & SPF/DMARC checks
- W3C HTML validation
Sample report preview
B+
Overall SEO grade
example.com · 12 pages crawled
On-Page
B+
Links
A-
Usability
B
Performance
C+
Social
A
+ AI fix recommendations for every issue
Five categories, one complete picture
Every audit scores your site the way professional tools do — with letter grades and actionable findings in each pillar.
Backlinks
Inbound link authority via Open PageRank (free) — domain strength signal used by SEO audit tools.
Usability
Mobile viewport, language, favicon, alt text, device readiness, and accessibility basics.
Performance
Page load time, page size, compression, and Core Web Vitals (when available).
Social
Open Graph, Twitter Cards, and visible social profile links.
How your audit runs
1
Enter your URL
No account or credit card required.
2
We crawl & analyze
Up to 15 pages, 50+ checks, Google APIs.
3
Get your report
Letter grades, issues, and AI fix plan.
Typical runtime: 1–2 minutes depending on site size and API response times.
Frequently asked questions
- Is the SEO audit really free?
- Yes. FlexiSeo Expert is free to use with no signup required. Enter any public website URL and receive a full technical SEO report.
- What does the audit check?
- We run 50+ checks across On-Page SEO, Links, Usability, Performance, and Social — including Lighthouse scores, real-user CrUX data, security headers, DNS records, and HTML validation.
- How long does an audit take?
- Most audits complete in under two minutes. We crawl your site, call Google and Mozilla APIs, and optionally generate AI recommendations.
- Do I need to install anything?
- No. FlexiSeo Expert runs entirely in the browser. Paste your URL and we handle crawling and analysis on our servers.
Ready to audit your website?
Join thousands of founders and marketers improving their SEO for free.