DNSBin.ca
Inspect DNS records, propagation, DNSSEC, mail configuration, delegation, and domain ownership from one browser toolbox.
DNSBin answers DNS questions in a browser tab. Small ones: what does this resolver return for that name? Larger ones: is this domain signed, does the delegation actually lead where the registrar claims, and has the change from an hour ago reached anyone else yet?
What it does
- Looks up individual record types, or every common type for a name at once
- Compares answers across public resolvers to check propagation
- Validates DNSSEC and walks the chain of trust
- Traces delegation from the top-level domain down to the authoritative nameservers
- Checks mail configuration: MX, SPF, DMARC, and DKIM
- Performs reverse PTR, RDAP/WHOIS, subdomain discovery, and DNS blocklist checks
- Produces a whole-domain report with plain-language findings, saveable as a shareable snapshot
- Exposes every panel through a JSON API for automation
Why it exists
Diagnosing DNS is rarely about missing data. The data is sitting in a registry, a delegation chain, half a dozen resolver caches, and three terminal windows of dig output, and the work is holding all of it in your head at once.
DNSBin collects those views on one page. The plain-language findings are there for a quick answer, but the underlying records stay visible, because “SPF looks fine” is worth much less than the record it came from.
Project family
DNSBin is part of the Pastebin.ca family, alongside the sharing tools and Attn.ca.