Probably it was slow for a short period of time, but I hate being blocked because of discriminating/evil external services, which main function of a site is dependent on. .
Dan landing pages don't work, take too long to load.
Dynadot has cloudflare.
Epik has bitmigitate.
Namesilo has quora.com?
Such services may help, but they can do monitoring (spying)
and prevent some sites from working properly, depending on the user, or IP.