Show HN: Ldns.com – fast DNS lookups from the URL bar
ldns.comI built LDNS because I'm constantly curious about domain names - who owns them, which nameservers they use, how they're configured, and what their DNS records reveal. I wanted a fast, easy way to investigate domains right from my browser without juggling multiple tools.
LDNS runs entirely client-side using Cloudflare's DNS over HTTPS. Just type a domain and instantly see:
All DNS records with clickable filtering RDAP/WHOIS data with registrar info and expiration dates Email security configuration (SPF, DMARC, MTA-STS, BIMI) Export options (JSON, CSV, BIND zones, PDF reports)
Try it at ldns.com - just append any domain like ldns.com/example.com to start investigating.
Built with SvelteKit and deployed on Cloudflare Pages for that instant-load experience we all love.
Comments, feedback, and feature requests welcome! I liked it, specially that it's blazing fast. I too used the RDAP API in a side project recently and it was so damn easy. Thanks for sharing. Thanks!