Tools
Free domain analysis and SEO tools. Check DNS records, SSL certificates, HTTP headers, redirects, WHOIS data, and more.
DNS Lookup
Look up DNS records for any domain. View A, AAAA, MX, CNAME, TXT, NS, and SOA records with TTL values.
Open tool →WHOIS Lookup
Look up WHOIS registration data for any domain. View registrar, creation and expiration dates, nameservers, and domain status.
Open tool →SSL Certificate Checker
Check SSL/TLS certificate details. View issuer, validity dates, subject alternative names, and the full certificate chain.
Open tool →HTTP Header Checker
Analyze HTTP response headers and get a security score. Check for HSTS, CSP, X-Frame-Options, and other security headers.
Open tool →Redirect Checker
Trace the complete redirect chain for any URL. See each hop with HTTP status codes, from HTTP to HTTPS and www to non-www.
Open tool →Meta Tag Checker
Check meta tags and Open Graph data for any URL. Preview how your page appears when shared on social media platforms.
Open tool →Robots.txt Checker
Fetch and analyze a domain's robots.txt file. View user-agent rules, crawl delays, allowed and disallowed paths, and referenced sitemaps.
Open tool →Sitemap Checker
Fetch and analyze a domain's sitemap.xml. Detect sitemap indexes vs URL sets, view entries, and discover alternate sitemaps from robots.txt.
Open tool →