i want to have for each one SSL certificate in order to use HTTP2 and ServerPush.
From what i understood, Fastly support TLS but I need to pay $100 / month.
This means about $600 in my scenario since I have 6 domains.
There would be a number of ways to reduce this from $600. By talking to a Sales person (via email@example.com), you’re likely to be able to do this by either reducing the amount you pay per certificate or changing to using a hosted certificate with the domains added as SANs. Of course, whatever the cost, it isn’t as low as free, so if that’s what you’re looking to get, it doesn’t make sense to start the discussion.
There are some good and cheaper way to enable HTTP2 on Fastly?
HTTP/2 needs TLS, and if you want TLS + your own custom domain on Fastly you’ll have to choose either SAN entries on a shared certificate or a hosted certificate, as mentioned here.
Why Fastly just don’t use Let’s Encrypt library?
I’m sure you’ll appreciate there’s more to it than just using Let’s Encrypt! Whatever method we use for TLS certificate provisioning, there still has to be methods of keeping them up to date and synchronizing them across all our servers, keeping everything secure and so on. Thus the just soon becomes something that is a more involved undertaking.
Amazon EC2 is able to support certificate generation for free, why Fastly is so expensive?
EC2 is a platform for provisioning server instances in the cloud. We’re a CDN, which is a lot different, so that’s not comparing similar things. I guess the point you wanted to make is that if you go to some other CDN providers you may get a lower price for TLS certificates. Perhaps that is true, but you need to evaluate all features, performance and other needs (such as good support!) and see which really has the lower cost over time. If something is completely free but when you have a problem with it you have to struggle without assistance because support is either a Google search or nothing, then it’s not really ‘free’ (unless your time is worth nothing).
Having said all that, pricing of our TLS offerings is something we’ve been looking at and we will strive to keep our offering competitive over time.