Librewolf

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The secure and private firefox fork!

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LibreWolf sends a DNS query to "host" on startup – why? (programming.dev)

submitted 1 week ago by ariadna to c/librewolf

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Hi everyone, When starting LibreWolf, I noticed that it sends the following DNS query:

Standard query 0x053e A host
Standard query response 0x053e A host SOA ns0.centralnic.net

The query is for a non-existent domain host, and the response includes an SOA record from ns0.centralnic.net. I'm wondering why LibreWolf is making this request. Is it related to security features, DNS caching, connection checks, or something else?

DNS is set manually, but this query still appears every time the browser launches.

Any insights would be appreciated!

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[–] [email protected] 3 points 1 week ago

Is it verifying the browser has internet connectivity or something?