>• ipconfig.is

Domain WHOIS lookup

A domain's registration, from the registry itself (RDAP, or WHOIS for TLDs without RDAP): the registrar, when it was registered and when it expires, its nameservers, status codes and DNSSEC.

What it checks

• Registrar and registration date
• Expiry and days remaining
• Nameservers and status codes
• DNSSEC delegation

The same check from the command line

curl "ipconfig.is/whois?domain=github.com"

All tools

• Domain security audit: TLS certificate, chain and versions
• DNS lookup: 20 record types, A to DNAME
• DNS propagation checker: 12 public resolvers worldwide
• TLS certificate checker: Validity and days remaining
• SPF, DKIM and DMARC checker: SPF with the 10-lookup limit
• HTTP redirect checker: Every redirect hop
• Domain WHOIS lookup: Registrar and registration date
• Subnet calculator: Network, broadcast and usable range

Every tool is also a key-free API call: see the API reference.