I assume that the way that this works is that I host content at www.foo.com and they have their nameserver resolve www.foo.com to different IPs based on the geolocation of the browsing user’s IP.
Is it possible to convert www.foo.com to a CNAME that can be redirected away from their nameservers? Like, I make www.foo.com be a CNAME directed at www.foo-cloudflare-cdn.com. They own www.foo-cloudflare-cdn.com, they serve A or AAA queries there on their nameservers. But if I want fallback, I update the CNAME to point at www.foo-backup-cdn.com, which is served by a different CDN.
Are there technical barriers to that, do you know?
Hmm.
I’m not familiar with the constraint.
I assume that the way that this works is that I host content at www.foo.com and they have their nameserver resolve www.foo.com to different IPs based on the geolocation of the browsing user’s IP.
Is it possible to convert www.foo.com to a CNAME that can be redirected away from their nameservers? Like, I make www.foo.com be a CNAME directed at www.foo-cloudflare-cdn.com. They own www.foo-cloudflare-cdn.com, they serve A or AAA queries there on their nameservers. But if I want fallback, I update the CNAME to point at www.foo-backup-cdn.com, which is served by a different CDN.
Are there technical barriers to that, do you know?