Whoisera
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Tools

Use Whoisera to look up a domain's registration, DNS, SSL and IP details from official sources.

Domain

WHOIS Information

View a domain's registration, registrar, date and name server details.

Run WHOIS Lookup

Domain Age Checker

Calculate a domain's original registration date and age from the registry record.

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Domain Expiration Checker

See when a domain expires and how many days are left.

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Domain Availability Checker

Check whether a domain is registered using the registry record.

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DNSSEC Checker

See whether a domain is signed with DNSSEC at the registry.

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DNS & Network

DNS Records

Inspect A, AAAA, MX, NS, TXT, CNAME and other DNS records.

View DNS Records

Nameserver Lookup

List a domain's authoritative nameserver (NS) records.

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MX Lookup

See a domain's mail servers (MX) in order of priority.

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TXT Lookup

View SPF, verification and other TXT records.

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IP Information

View the domain's IPv4 and IPv6 addresses and reverse DNS records.

View IP Addresses

Web & Security

SSL Information

Check the SSL certificate's validity period, issuer and other details.

Inspect SSL Details

HTTP Status Checker

See the HTTP status code a site returns, plus HTTPS and HSTS details.

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Redirect Checker

See a domain's redirect chain (301, 302 …) step by step.

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Website Technology Checker

See a site's server, CDN, CMS and analytics traces along with the evidence.

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