What if we use a firewall, proxy server, Deep Freeze or other computer moderation software?
LibraryThing does not make network connections in to your servers or clients, but they do need to be able to connect out to us to get our content. Any client that should load our enhancements in the OPAC (such as locked-down OPAC terminals) need to be able to make HTTP/HTTPS requests to our servers at the following addresses: • 74.201.105.30 • 74.201.105.31 • 74.201.105.33 The staff computer(s) used to upload bibliographic data to us needs to be able to make HTTP or FTP requests to our servers at the following addresses, as well as the addresses above: • 74.201.105.27 • 74.201.105.29 If you’re setting up your firewall rules by domain name, you should just allow HTTP connections to *.librarything.com. Specifically, the main code is coming from “www.librarything.com”, the data that gets loaded comes from “ltfl.librarything.com” and the images come from “static.librarything.com”. For the computer used to upload data to us, add fileupload.librarything.com.