Display the server IP address, with a realtime summary of IPv4, IPv6, and HTTPS information across all page elements.
IPvFoo uses the webRequest API to extract protocol-related information as a web page downloads, and summarizes it into a convenient table. Everything is captured and displayed privately, without creating any additional network traffic.
A large 4 or 6 on the extension icon shows whether the outer page was fetched using IPv4 or IPv6. If the page contains elements from other domains, a smaller 4 or 6 appears alongside.
When you click the icon, a table appears with a row for each domain:
- A padlock icon for http://, https://, or a mix of both.
- The IPv4 or IPv6 address. If connections span more than one address, the most recent one wins. The address is highlighted in yellow while connections are open.
- A "cached" symbol, meaning that no actual connections took place, so the IP address might be stale.
- An "S" for WebSocket handshakes in Chrome 58+.
Clicking on a hostname or address will select it for convenient copying. There's also a right-click option to look up addresses with bgp.he.net. I'm not affiliated with that service, but it's my personal favorite.
IPvFoo is Free Software (Apache 2.0 license).
