That first one, cloudaways, puts your content on Amazon or Google or some other platform. When those providers deplatform you, you are done. The second one is a mass emailer. Nobody other than a business do anything with that.
Cloudways manages cloud hosting services besides AWS and Google Cloud. You can also choose Digital Ocean, Vultr, or Linode. (Vultr gives you the most speed for the buck).
SendInBlue is a replacement for Mail Chimp, the service mentioned in the article. If you’re worried about personal email try Proton Mail.