Webmaster Tools
Quick checks for anyone running a website or troubleshooting a connection. Unlike the file tools on this site, these look things up on the network.
What Is My IP Address reads the address your own request arrives from, with an approximate location and provider, and doesn’t store it. DNS Lookup queries A, AAAA, MX, TXT, NS, and CNAME records over encrypted DNS-over-HTTPS — handy after switching a mail or hosting provider. WHOIS Lookup shows a domain’s registrar, creation and expiry dates, and name servers from the official RDAP registry data. SSL Certificate Checker lists the certificates issued for a domain from public Certificate Transparency logs, with each one’s issuer, expiry date, and covered hostnames.
All webmaster tools
What Is My IP Address
See your public IP address (IPv4 or IPv6) instantly, plus your approximate location, timezone, and network provider — read from your own request, not stored.
DNS Lookup
Look up DNS records for any domain — A, AAAA, MX, TXT, NS, and CNAME — over encrypted DNS-over-HTTPS, with TTLs and values in a clean table. Free, no signup.
WHOIS Lookup
Check a domain’s registration: registrar, creation and expiry dates, name servers, and status codes — from the official RDAP registry data. Free and instant.
SSL Certificate Checker
Check the SSL/TLS certificates issued for any domain from public Certificate Transparency logs — issuer, expiry date, and covered hostnames. Free, no signup.