This website is hosted on Google Firebase, because I trust Google to keep their connections and systems secure, and to be responsible stewards of what little information their servers collect. For details, see Privacy and Security in Firebase. In particular, they provide the example that Firebase Hosting "uses IP addresses of incoming requests to detect abuse and provide customers with detailed analysis of usage data" and "retains IP data for a few months" (as of 2018-10-25).
If you have questions, please feel free to e-mail
me at this domain or direct-message me on Twitter.