@bortzmeyer @saper I guess I can drop a line to someone at NixOS, I should be able to write to free as one of their customer (even though I fear an answer around the lines of «send us your box back»…).

So what should I do in the meantime ? Simply leave that line in /etc/hosts ? Use someone else's resolver ? (I won't use Google's, they already know way too much about me 😁).

Anyway thanks again for the explanation, I'm gonna have to learn to play with those RIPE Atlas probes, they seem so useful !!