Free DNS Tools

Check DNS records, test propagation, validate email authentication, and more – all for free, no registration required.

DNS Health Check

Run a comprehensive DNS health check on your domain. Analyze nameservers, SOA, MX, web records, and email authentication.

Query DNS records for any domain. Check A, AAAA, MX, CNAME, TXT, NS, SOA, SRV, CAA, and PTR records.

Check if DNS changes have propagated across global DNS servers. Verify updates from Google, Cloudflare, OpenDNS, and more.

Generate SPF and DMARC records and validate SPF, DKIM, and DMARC. Improve email deliverability and protect against spoofing.

Look up domain registration information. Find registrar, creation date, expiry date, nameservers, and contact details.

Inspect SSL/TLS certificates. Check issuer, validity dates, subject alternative names, and certificate chain.

Check if an IP address or domain is listed on DNS-based blacklists (DNSBL). Test against Spamhaus, Barracuda, SpamCop, and more.

With API, DNSSEC, and monitoring.