7 Best Free SEO Checking Tools for 2026

You don't need expensive SEO software to check your website's health. Here are 7 free SEO checking tools that help you find technical issues, measure speed and optimize meta tags — all running right in your browser, no install required.

1. SEO Checker — full overview

Scans comprehensively and scores SEO 0–100 across 50+ technical, content, performance and security checks. The best starting point for the full picture.

Try it now: Free SEO Checker — enter a URL, get results in 30 seconds.

2. Meta Tag Checker — optimize your Google appearance

Checks title, meta description, canonical, H1 and Open Graph — the factors that directly drive click-through from search results.

Check meta tags

3. Page Speed Checker — measure Core Web Vitals

Pulls data straight from Google PageSpeed to score speed and Core Web Vitals (LCP, CLS) — an official Google ranking factor.

Check page speed

4. Robots.txt Checker — avoid blocking Google by mistake

One wrong line in robots.txt can remove your entire site from Google. The tool parses every Allow/Disallow rule.

Check robots.txt

5. Sitemap Checker — help Google index faster

Counts URLs, checks sitemap structure and flags missing lastmod.

Check sitemap.xml

6. IP Checker — spot suspicious traffic

Look up an IP to see whether it's residential, datacenter, VPN or Tor — useful when you suspect bots or click fraud.

Check an IP

7. Detailed scored audit

When you need a full report to send a client or keep history, use the detailed audit.

Get a detailed free SEO audit

Conclusion

Start with the SEO Checker to scope the problem, then use the specialized tools to dig deeper. They're all free — bookmark them and check regularly.