While the discussion you want to have is a valid one, you're opening on a complete logical fallacy. Market cap and technical sophistication, esp at large scale

While the discussion you want to have is a valid one, you're opening on a complete logical fallacy. Market cap and technical sophistication, esp at large scale, tend to become divergent. In other words, it is generally assumed that big companies do things poorly. That's the entire notion of startups. I will say this: Dyn can probably do a better job of hosting your DNS than Rackspace, Rackspace is not focused on DNS, and I'm not aware that they even really do anything special except for running lots of big DNS servers. Even when I worked at Rackspace 10y ago, the size of their customer base made them a constant target for DoS attacks. Do you need Dyn? Also probably not. Rackspace has patented DDos prevention technology called RiverGuard, but since being patented only illustrates that it is novel, and not that it is of any quality, that is also meaningless. I will say that, even though I prefer as a past employee to work with other companies, because the things Rackspace is bad at are things they don't give a fuck about solving, they run a damned fine network. Further, as a replacement for / alternative to a colo, it is irrelevant whether a company can run a good DNS infrastructure, because that's not what I'm asking them to do. Rackspace DNS is there for convenience. Cloud providers like AWS use their own cloud infrastructure (we think) to host services like Route53, which are also not infallible, but tend not to _entirely_ go down like this. Rackspace, while being somewhat competetive in the cloud space, doesn't operate anything like Amazon, doesn't do anything in a very distributed manner, and is backing those cloud offerings with what I expect to be vertically scaled DNS servers on top-end Dell hardware behind some kind of load balancers. Money doesn't make you good at things, rather it helps you to not have to worry about the details, so it is inversely true that a company with a substantial market share should be expected not to make the same mistakes as the little guys. They're operating all day, all week, all year under the fallacy that their scale is proof of the quality of their work, and following this logic, they don't have to do any work at all. ;)