DNS / WHOIS / SSL Lookup

Look up DNS records, WHOIS registration data, and SSL/TLS certificate details for any domain. Free domain analysis tool - no sign-up required.

DNS Record Types

A - IPv4 address mapping
AAAA - IPv6 address mapping
CNAME - Canonical name (alias)
MX - Mail exchange servers
NS - Name servers (authoritative)
TXT - Text records (SPF, DKIM, verification)
SOA - Start of authority
CAA - Certificate authority authorization
DS / DNSKEY - DNSSEC signing records

DNS Resolvers

Query from Google (8.8.8.8), Cloudflare (1.1.1.1), Quad9 (9.9.9.9), or OpenDNS (208.67.222.222) to compare results across major public resolvers.

WHOIS / RDAP Lookup

Retrieves domain registration data including registrar, registration and expiry dates, name servers, and registrant contact info via IANA RDAP bootstrap (authoritative registry for each TLD).

SSL / TLS Certificate Check

Inspects the TLS certificate for any domain: subject, issuer, validity period, days remaining, fingerprint, and TLS version support (TLS 1.0 through 1.3).

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