Free DNS tools that actually go deeper
Resolvers checked
Google, Cloudflare, Quad9, OpenDNS
Bulk capacity
Up to 256 domains per request
Free access
All tools, no account required
Everything you actually need in one place
See what every resolver returns
DNS Lookup and Domain Digger query multiple major public resolvers simultaneously so resolver disagreements become immediately visible.
Go deeper than a normal lookup
Domain Digger gives you full A, AAAA, MX, NS, TXT, CNAME, SOA, CAA, PTR and more with intelligent provider identification and ASN enrichment.
Find hidden subdomains safely
Subdomain Finder uses certificate transparency logs and passive DNS data — no active scanning, no rate limit risk, no noise.
Actually understand your SPF
SPF Analyzer fully expands every include, resolves IP ranges, labels senders by provider, and warns you before you hit the 10-lookup limit.
Bulk operations that actually scale
Run DNS, WHOIS, or FCrDNS checks across up to 256 domains, IPs, or ASNs in one pass. Export results for tickets, audits, or runbooks.
Built for real workflows
Free for individuals. Teams get collaboration, history, API access, and shared workspaces when you need more than a one-off lookup.
All the core tools are free.
No account needed for individual use. All features are currently available for everyone—just start using our DNS tools, no signup required.