dns lookup
How to look up DNS records online
DNS maps names to records: A/AAAA, MX, TXT, NS… Online lookups help debug propagation and bad configs.
DoH in the browser
Browsers can’t speak raw UDP DNS. LedaTools uses public DoH APIs for an nslookup/dig-like flow.
Common checks
A/AAAA (reachability), MX (mail), TXT (SPF/DKIM/verification), CAA (CAs), PTR (IPv4 reverse).
Propagation
TTL and caches mean networks can disagree for a while. Compare Cloudflare vs Google if answers differ.
NXDOMAIN vs empty NOERROR
NXDOMAIN = name doesn’t exist. NOERROR with no answers can mean that record type is absent.
DoH privacy
The query goes to the chosen resolver (Cloudflare/Google). It is not a fully offline lookup.
FAQ
How in the browser?
Uses public DoH APIs (Cloudflare/Google).
Which types?
A, AAAA, CNAME, MX, TXT, NS, SOA, PTR, SRV, CAA.
PTR for IP?
Yes. Choose PTR and paste an IPv4.