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Domain
Data by RDAP registries and Cloudflare DNS
Checks on an internet domain: registration record (RDAP), DNS records and email configuration (MX, SPF, DMARC).
dns, domains, rdap, whois, email deliverability, developer tools, security
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Tools (3)
- checkEmailDomainCheck whether a domain can receive email and how it authenticates it: MX servers and mail provider, SPF policy and DMARC policy. Accepts a domain or an email address. Use it to verify that an address's domain is real and deliverable, or to audit a domain's anti-spoofing setup.Free
- resolveDnsRecordsResolve the DNS records of a hostname (A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, SRV) through a public resolver, with TTLs. Use it to see where a domain points, debug a DNS change or read a verification TXT record.Free
- lookupDomainRegistrationRegistration record of a domain name from its registry (RDAP, the successor of WHOIS): whether it is registered, the registrar, creation, last change and expiry dates, status flags, name servers and DNSSEC. Use it to check a domain's age and expiry or whether a name is taken.Free