This plugin is a really simple and quick plugin that puts the hostname of the server that the page was viewed from. This is useful if you are hosting your blog on many servers and want to see which one the current page came from. It puts the hostname as a HTML comment in the source code where the footer is.

Yes! In the "Blocked Bots" tab, you can use the "Update Missing Hostnames" button to resolve hostnames for IPs that don't have them, or "Force Refresh All Hostnames" to clear the cache and re-resolve all hostnames.