The Fediverse is built on open standard protocols. Testing that implementations conform to those standards is important for interoperability. That's what we are working on with the FediTest project.
Here's a first draft report of Webfinger server conformance for almost 100 Fediverse applications. A total of 1615 tests were run.
Overview: https://feditest.org/contrib/results/2024-06-16/ -- more details by clicking through.
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