Acutis DNS lookup — compare the big resolvers
Enter a domain and see what Cloudflare, Google, DNS.SB and AliDNS each return at once. When they disagree, that's DNS filtering, propagation lag, or geo-balancing.
What the differences mean
- All return the same answer — DNS is healthy and the record has propagated everywhere.
- Different IPs — usually a big site using geo/CDN balancing (normal), or DNS filtering on a network that blocks/redirects the name.
- One resolver lags — you recently changed a DNS record and it hasn't propagated to that provider yet (TTL).
- A resolver returns nothing — it may not allow browser (CORS) queries, or it can't resolve the name.
FAQ
What DNS resolvers does this tool compare?
It queries Cloudflare (1.1.1.1), Google (8.8.8.8), DNS.SB and AliDNS at once and shows what each one returns side by side.
Why do the resolvers return different answers for my domain?
Usually it's a big site using geo/CDN balancing (normal), recent record changes that haven't fully propagated, or DNS filtering on a network that blocks or redirects the name.
What record types can I look up?
A, AAAA, MX, TXT, NS and CNAME records for any domain.
Is this free and private?
Yes — free, no sign-up. The lookups run in your browser and nothing is stored.
Names check out — but is the problem even DNS?
If a domain resolves fine everywhere and you still have trouble, it isn't DNS. Acutis Go runs the full check — network, DNS and your own machine — in 60 seconds. Free.
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