Sorry, you were imagining the use of a TXT record (I assume) and that would work better than an A record inquiry that I was considering.
It still wouldn’t find http filtering, but it would work better than I initially gave it credit. (I still doubt it would give a contextually correct answer for an airplane wifi connection [where DNS May very well work but few other services do if not paid].)
It still wouldn’t find http filtering, but it would work better than I initially gave it credit. (I still doubt it would give a contextually correct answer for an airplane wifi connection [where DNS May very well work but few other services do if not paid].)