Free domain tools

Quick, no-signup checks for the things that take sites down silently. Run one, then let Lapseguard watch them for you.

• SSL Certificate CheckerCheck any site's SSL expiry, issuer and chain validity.
• WHOIS & Domain ExpiryRegistrar, expiry date, days left and registry status.
• DNS LookupA, AAAA, MX, NS and TXT records for any domain.
• Domain Health CheckSSL, expiry and DNS — all in one check.