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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

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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Is it DNS? · What is DNS? · How to change your DNS

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