Twitter, Mozilla and lots of other big names use them. I remember watching a webcast where Mozilla said they used Dyn's anycast failover service, with TTLs on their domains set to 5 seconds.
I've been using their DynECT entry level package ($30/month) for a couple of years and it's great.
Edit: you might also find this comment from an old thread interesting/useful: https://news.ycombinator.com/item?id=7813589 (go up two levels to phil21's first comment - HN isn't giving me a direct link sadly)
Twitter, Mozilla and lots of other big names use them. I remember watching a webcast where Mozilla said they used Dyn's anycast failover service, with TTLs on their domains set to 5 seconds.
I've been using their DynECT entry level package ($30/month) for a couple of years and it's great.
Edit: you might also find this comment from an old thread interesting/useful: https://news.ycombinator.com/item?id=7813589 (go up two levels to phil21's first comment - HN isn't giving me a direct link sadly)