rundll32.exe access to Akamai/Cloudflare as well as Comodo

Am using CIS as a firewall of a server. The setting is pretty tight, say, rundll32.exe can access to trusted sites only.
As the result, I found that rundll32 accesses Comodo(178.255.83.*) for a five bytes file, which is probably OK, and allowed it.
But, it also accesses Akamai and Cloudflare.

What is this?
I think CIS is letting rundll32 sccess to Akamai/Cloudflare, because the requesting file is the same kind of Comodo’s case.
Should I allow this outgoing request?