Fastly already provides HTTP/2 and HTTP/3 for its CDN. It would be awesome if you could also provide SVCB/HTTPS records for your endpoints to allow clients to directly initiate a HTTP/2 or HTTP/3 connection without prior knowledge.
While still a draft, it’s already implemented by major browser vendors and one of your competitors.
See Add SVCB DNS record for tile.openstreetmap.org · Issue #898 · openstreetmap/operations · GitHub for a discussion of the Openstreetmap project.
Thanks for reaching out.
I enquired internally and it seems this feature (SVCB/HTTPS records) is something we’re interested in supporting. I’m unable to provide any more information at this point as to what the next steps are, or when such a feature would be made public, but it is being actively discussed.
Hopefully that helps for the time being.
For the typical CNAME setup a hardcoded record like this should suffice:
dualstack.n.sni.global.fastly.net 3600 IN HTTPS 1 . alpn="h3,h2"