@kmcphillips I'd have to dig into the mastodon source to be sure about what's happening here, but here's my hunch:

1. I know that it will try to "verify" the page by checking for a "rel=me" meta tag, and that process might start with a HEAD request.
2. when you change your profile, that gets broadcast to other servers in the fediverse, and they'll all be trying to do that same verification.

... so that might explain the different IPs. It probably won't last _forever_, but... maybe? 🤷