Display the server IP and Country, with a realtime summary of IPv4, IPv6, and HTTPS information across all page elements.
As the author of the extension IPvBar was forked from, be aware that this contains 50 times more code, and the modifications are not published on GitHub. While the Apache license permits closed source derivatives, it is difficult to know what you're actually running. I would also recommend reading txthinking's privacy policy.
Keep it simple and stupid :>
https://ziad87.net
https://pmarks.net/
boomeasy
vrabel.it
https://dnslytics.com
G2EX
Marnes
https://country-flags.freebusinessapps.net/
yokris.dev