100% uptime with CloudFlare?

Question

cloudflare

Not a programmer, site owner.
1) Is it true that if you install CloudFlare, you can provide 100% uptime? and the site will not go down at all due to some possible problems at the hosting level.
If yes, is it included in the free CloudFlare plan?

2) I heard that our Roskomnadzor often blocks IPs from Cloudflare.
As a protection against this, is it possible to buy a dedicated IP there?

Answer 1

1) Is it true that if you install CloudFlare, you can provide 100% uptime? and the site will not go down at all due to some possible problems at the hosting level.

Well, how would you turn on the logic, how can CF make your hosting always online?
Naturally, he will not help in this.
The cache can be given away or a stub that the site is lying, but this does not particularly apply to the uptime of your hosting.

Answer 2

1 Partly, if the hosting is dead. then the site is dead. cloudflare will pull up a static copy from the cache.
2 You can buy if you buy a business plan for $200 per month.

Answer 3

1) true, but not all
2) haha, no, but you can minimize a thousand for 5 USD

Answer 4

1. 100% no. On the free plan, sites are not available, while the site itself works fine (to check this, I made a technical subdomain that was not proxied through the CA).
-SLL-certificate from CF - neutered, old Chrome/WinXP can't access sites - incompatible encryption protocol.
You put a certificate from letsencrypt - everything is fine and compatible.
Otherwise - CF works like clockwork.
2. If Cloudflare's IP is blocked by the RKN - write to them, explain that it was not you who was blocked, and they change the IP. You can also create a new account - it will be tied to a different IP.