Why do browsers not use SRV records?
It seems like a minimal amount of work and it will make the server-side implementation of reliable websites much simpler.
For example, you can specify tiers, such that www.example.com resolves to 1.2.3.4 and 2.3.4.5, and only if neither of those are available, try 4.5.6.7.
SRV records have been around for years...
Is there something I'm missing here?
Jonathan de Boyne Pollard provides the following Frequently Given Answer.
You've come to this page because you've said something similar to the following:
SRV record support hasn't even made it into web browsers yet, let alone clients of less-common protocols.
This is the Frequently Given Answer to such statements.