All tools
32 free SEO tools. No signup required.
Audit & Reports
SEO Infrastructure Analyzer
Free SEO audit: check meta tags, canonical, robots.txt, indexability. Get SEO score and fix recommendations. Enter URL.
Website Performance Analyzer
Free performance audit: check HTTP status, TTFB, page size. Get performance score and fix recommendations. Enter URL.
SEO Audit Lite
Basic SEO audit: title, meta, H1, canonical, links, HTTP status. Quick technical SEO check. Free online.
Critical Errors Checker
Check for critical SEO errors on a URL. Find blockers and fix recommendations. Free SEO audit.
SEO Quick Fix Report
SEO quick fix report: short, actionable recommendations to fix critical issues. Free URL audit.
HTTP & Redirects
HTTP Status Checker
Free HTTP status checker: verify status codes, headers, response time for any URL. Test redirects and server response.
Redirect Chain Checker
Analyze redirect chains, detect loops and broken redirects. See full chain from URL to final destination. Free SEO tool.
TTFB Tester
Measure Time To First Byte and total response time for any URL. Free TTFB checker for SEO and performance. No signup.
Meta & Content
Meta Tags Validator
Extract and validate meta tags, Open Graph, Twitter cards. Check title, description, social markup for SEO. Free online.
Title Length Checker
Check title tag length in characters and estimated pixel width. Optimize for search snippets. Free SEO tool.
Meta Description Preview
Preview meta description length and how it appears in search results. SEO snippet preview for Google. Free online.
Sitemap & Indexing
Sitemap XML Validator
Validate sitemap.xml structure and check all URLs. Find broken links, invalid XML. Free sitemap checker for SEO.
Robots.txt Tester
Parse robots.txt rules, test URL against User-Agent. See Allow/Disallow for Googlebot. Essential for SEO crawling.
URL Count Checker
Check URL count in sitemap and whether you're within 50k limit. Free sitemap URL counter for SEO. No signup.
Lastmod Analyzer
Analyze lastmod dates in sitemap — find old or invalid dates. Free lastmod checker for SEO. Improve crawl freshness.
User-Agent Rules Checker
See Allow/Disallow rules for a specific User-Agent (Googlebot, Bingbot). Free robots.txt rules viewer.
Blocked URL Tester
Check if a URL path is blocked by robots.txt for a User-Agent. Test crawl access. Free SEO tool.
X-Robots Header Checker
Check X-Robots-Tag HTTP header for noindex, nofollow, noarchive. Page-level index control. Free online.
Links & Audit
Broken Links Finder
Scan pages for broken internal and external links. Get 404s and redirect chains. Free broken link checker for SEO.
Canonical URL Checker
Check canonical tag and whether it matches the requested URL. Fix canonical issues for SEO. Free online.
Internal Link Checker
Extract and analyze internal vs external links, anchor text. Improve internal linking for SEO. Free tool.
Anchor Text Analyzer
Analyze anchor text: empty, generic, duplicate anchors. Improve internal linking for SEO. Free online analyzer.
Duplicate Canonical Detector
Detect pages that share the same canonical URL. Find canonical conflicts. Free SEO duplicate detector.
Self-Reference Checker
Check if a page's canonical tag points to itself. Validate self-referencing canonicals. Free SEO tool.
Multilingual SEO
Hreflang Validator
Validate hreflang alternate links: x-default, duplicates, invalid format. Free multilingual SEO checker.
Hreflang Language Conflict Checker
Detect hreflang conflicts across page URLs. Validate language and region targeting. Free multilingual SEO.
Region Coverage Tool
See language/region coverage from hreflang on page or sitemap. Free hreflang coverage analyzer.
Indexability
Pagination
Pagination Validator
Validate rel=prev and rel=next, pagination correctness. Free pagination SEO checker. Enter URL.
Rel Prev/Next Checker
Check rel=prev and rel=next on a page. Validate pagination markup for SEO. Free online.
Infinite Scroll Detector
Detect infinite scroll and get SEO recommendations. Crawlability tips for AJAX sites. Free tool.