I've wanted a badge that shows the instance uptime and couldn't find any, so I created one. It's available at https://uptime.lemmings.world/{your-domain}.svg and gets its data from fediverse.observer.
Examples:
- Lemmings.world:
- https://uptime.lemmings.world/lemmings.world.svg - Lemmy.world:
- https://uptime.lemmings.world/lemmy.world.svg - Lemmy.ml:
- https://uptime.lemmings.world/lemmy.ml.svg - discuss.tchncs.de:
- https://uptime.lemmings.world/discuss.tchncs.de.svg (congrats on that uptime, by the way!) - and so on
The documentation is available at https://uptime.lemmings.world. Feel free to use it for your instance if you wish to.
An IP can nearly always be tied to an individual, as it is linked to a physical location. IANAL, maybe you are right in regards to the GDPR, but from a privacy perspective it is still a really bad idea to embed this kind of potential tracking into your website with no way for users to opt out.
Feels like a moot point, especially here on Lemmy (or Fediverse in general), where almost everything you send is automatically sent to hundreds of other servers. But, well, I promise I don't care about your IP and don't store it even in system logs. Would it calm you a bit if I included a privacy policy?
The data send to other servers via Federation is not critical private information like an IP address, however you are right that due to the way Lemmy loads images from other instances, IP addresses are currently leaked to other servers. But I hope that will be improved with a better image proxy in the next version (Lemmy 0.19.x in combination with Pictrs 0.5.x).
It's nice that you promise to not abuse this and I trust that you are not lying about it, but this is a general problem and I don't think services like this should be used as your instance's users are usually not aware of the implications.