[lxgr]

> if you asked a typical DNS server e.g. at an ISP or built into a cheap home router - any type of question except "A? some.web.site.example" you get either no answer or a confused error.

Really? Because that would mean that anything using SRV records wouldn’t work on home routers, yet it’s an integral part of many protocols at this point.

There’s some room between “my DNS resolver doesn’t do DNSSEC” and “I can only resolve A records”.

[tialaramex]

Yes really. Like I said - even AAAA though better than it was isn't as reliable as A, the "Happy Eyeballs" tactic makes that tolerable, maybe 90% of your customers have IPv6, get the AAAA answer quickly, reach the IPv6 endpoint, awesome. 9% only have IPv4 anyway, get IPv4 endpoint, also fine, but 1% the AAAA query never returns, a few milliseconds later the IPv4 connection succeeds and the AAAA query is abandoned so who cares.

I'd guess that you if you build something which needs SRV? to "Just work" in 2025, not "nice to have" but as a requirement, you probably lose 1-2% of your potential users for that. It might be worth it. But if you need 100% you'll want a fallback. I suggest built-in DoH to, say, Cloudflare.