SRV support seems to have been (unfairly, I think) rejected by HTTP vendors and standard bodies. There is a new standard, however, in the works:

https://tools.ietf.org/html/draft-nygren-dnsop-svcb-httpssvc...

This one might have a larger chance of being accepted, since it provides some things which HTTP standard bodies and HTTP client vendors want. It doesn’t (at this stage, anyway) provide for the load-balancing “weight” field from the SRV record, but it does support MX-style priority numbers, and also port numbers. Very interesting, to say the least.

Enjoy http://jdebp.uk./FGA/dns-srv-record-use-by-clients.html#HTTP and http://jdebp.uk./FGA/dns-srv-record-use-by-clients.html#Sham... .