Cloudflare are suppsed to be providing protection (among their services) to the site owners against malicious attacks such as DDOS. They have so many false positives that it makes some sites unusable. It also will destroy your social media presence by replacing your carefully set preview image and text with their standard error messages because they have mistaken the site where your post is for some kind of mailware. There are alternatives, if you search for them! I've had bad experiences from user and site-owner perspective.
