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Home/Tools/Domain Tools

Domain Tools

11 essential web diagnostics utilities

WHOIS lookups, DNS queries, SSL inspection, and more. Everything you need to diagnose and analyze domains and web infrastructure.

All 11 Tools

Domain Tools provides comprehensive diagnostics for web developers, sysadmins, and anyone who works with websites. Query DNS records, check SSL certificates, trace redirects, and more.

Domain & DNS

  • WHOIS Lookup — Query domain registration information
  • Domain Availability — Check if domains are registered
  • DNS Lookup — Query A, AAAA, MX, TXT, CNAME, and NS records
  • DNS Propagation — Check DNS across global nameservers

Security & Headers

  • SSL Certificate Inspector — View certificate details, expiry, and chain
  • HTTP Headers Analyzer — Inspect response headers and security settings

Network & SEO

  • IP Geolocation — Look up IP location and ISP information
  • Redirect Tracker — Follow redirect chains and analyze hops
  • Dead Link Checker — Find broken links on a page
  • Lighthouse Auditor — Run Google Lighthouse audits
  • Favicon Grabber — Extract favicons from any website

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