Tools for DNS records, resolver comparisons, domain registration research and reverse DNS checks. Choose a tool to open its dedicated page.
DNS lookup
Inspect public DNS records for a domain or hostname.
Open tool →DNS propagation checker
Compare DNS answers and TTLs from Google Public DNS and Cloudflare.
Open tool →DNS record generator
Create copyable A, AAAA, MX, TXT, CNAME, NS, SRV and CAA records.
Open tool →Domain lookup
Check domain availability and public registration information.
Open tool →Reverse DNS checker
Find PTR hostnames and check whether they resolve back to the original IP address.
Open tool →For SPF, DKIM, DMARC and Microsoft 365 diagnostics, visit E-mail Tools →