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.
I knew to check robots.txt because of fedidb’s Data Sources page, which specifies what data they get, their user agent, and how to opt-out via robots.txt.
One thing I’m noticing in regards to lemmy.world, I wonder if they ever disallowed access to the nodeinfo endpoint in their robots.txt in the past. They don’t currently, but the wording suggests that having that rule at any point will forever remove the instance from fedidb. Which could explain what we’re seeing for that instance.