The domain https://fediverse.observer/ redirects to sedo now.
On October 11th these two commits where made to the repo:
this will be my final release, glad to have contributed since 2011 to some fediverse stats, https://fedidb.com/ is a great resource with more interest
this software is no longer developed
Sad to have lost such a great resource.


Do they do any math? I assumed it’s simply additive. They get the MAU from individual instances via their crawler, then display a total?
Differences to other sites is probably due to the set of instances checked, not anything math related.
You’d think it’s straightforward and additive. I added up all their listed instances for a couple different softwares. The math was wrong and overestimated the MAU count. I checked it a few times across a couple weeks. Couldn’t quickly figure out a pattern to how the math was wrong each time.
Maybe they fixed it in the last ~6 months, but I wouldn’t count on it. I believe it’s the same Dev as pixelfed and loops. So, not sure they’ve done any work on fedidb in years (to my knowledge, they’ve focused on Loops and Pixelfed).
Edit: to clarify, adding the MAU of all their listed instances for a particular software was lower than the total MAU they reported for the software.