A domain like *.amazonaws.com has nothing to offer that I have ever seen, pure rubbish. Blocking it will stop ads in mobile apps.
Cumulatively I think AWS is adding a hefty amount of latency.
The way their DNS is configured is often convoluted, requiring excessive layers of gratuitous lookups. It sometimes borders on absurd, much worse than I have ever seen with CDNs.
Fastly is doing a much better job with minimizing DNS queries. Certainly better than Akakami ever did.
Cumulatively I think AWS is adding a hefty amount of latency.
The way their DNS is configured is often convoluted, requiring excessive layers of gratuitous lookups. It sometimes borders on absurd, much worse than I have ever seen with CDNs.
Fastly is doing a much better job with minimizing DNS queries. Certainly better than Akakami ever did.