[Dnsmasq-discuss] Caching of HTTPS and SVCB records

[Evandro Menezes]

Current OSes are now using the HTTPS record to query the addresses and the canonical name, as well other information important to browsers, rather than using the A and AAAA records as they used to.

In my anecdotal experience, HTTPS queries amount to over a third of the queries.  It might make sense to cache their replies, if not to decode them and also populate the cache with any information for A, AAAA and CNAME the they may contain.

Another record that is rising in usage in SVCB, primarily by browsers and IoT devices, to discover the DNS resolvers for DNS over HTTPS, DNS over TLS and DNS over QUIC.  Along with HTTPS, it would be interesting to add a configuration option for these records.

If these suggestions are considered worthwhile, I’d be glad to contribute patches.

Cheers,

-- 
Evandro Menezes