Domain Availability Checker
Check whether a domain is free and see how it looks on other extensions.
Results come from public registry data and live DNS and are cached briefly. Confirm details with the registrar or host before acting on them.
IP & ASN Lookup
Reverse DNS, network owner and ASN for a domain or IP address.
Results come from public registry data and live DNS and are cached briefly. Confirm details with the registrar or host before acting on them.
HTTP Header & Redirect Checker
Redirect chain, status codes and the main security headers.
Results come from public registry data and live DNS and are cached briefly. Confirm details with the registrar or host before acting on them.
SSL Certificate Checker
Certificate validity, issuer, expiry date and covered names.
Results come from public registry data and live DNS and are cached briefly. Confirm details with the registrar or host before acting on them.
DNS Lookup
A, AAAA, MX, NS, TXT, CNAME, SOA and CAA records in one place.
Results come from public registry data and live DNS and are cached briefly. Confirm details with the registrar or host before acting on them.
WHOIS Lookup
Registrar, key dates, name servers and status for any domain.
Results come from public registry data and live DNS and are cached briefly. Confirm details with the registrar or host before acting on them.