RDAP lookup
Review public registration events, registrar details and nameservers.
Domain research toolkit
Everything you need to inspect a domain
DNS records
Inspect A, AAAA, MX, NS, CNAME, TXT, SOA and CAA records where supported.
IP & reverse DNS
Resolve public addresses and check reverse DNS hostnames.
SSL certificate
Review certificate issuer, validity dates and remaining lifetime.
What is domain intelligence?
Domain intelligence brings together publicly accessible registration and technical information about a domain name. It can help website owners, IT teams, developers and researchers understand how a domain is registered, how its DNS is configured, which public IP address it resolves to, and whether its HTTPS certificate can be verified.
Kal's Domain Intelligence uses the Registration Data Access Protocol (RDAP) where a registry publishes an RDAP service, along with DNS lookups and a limited HTTPS certificate and response check. Some registration data is intentionally withheld, and not every domain extension publishes the same information.
Frequently asked questions
Yes. Public searches are free. Registry availability and response limits are controlled by the external services queried.
Registrars and registries may redact personal contact details for privacy or legal reasons. A lookup cannot reveal information that is not publicly disclosed.
RDAP is a structured, web-based protocol for registration data. It returns standardized JSON and supports modern access controls and internationalization.
No. A valid certificate and successful response do not prove that a website is legitimate or safe. This tool is an information lookup, not malware scanning or a penetration test.