Of all the ActivityPub servers that have ever been publicly available, how many do you think are still up today?
0 to 25%47%
26% to 50%35%
51% to 75%11%
76% to 100%5%
Replying to @evan@cosocial.ca
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@evan There must be an enormous number of one-person servers, so the number of surviving servers need not tell much about the Fediverse as a whole.
Replying to @mrdk@mathstodon.xyz
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@mrdk As far as I can tell, about 47% of live servers are single-user.
What do you mean that the lifetime of servers doesn't tell much about the Fediverse as a whole?
Replying to @evan@cosocial.ca
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@mrdk Also, as far as I can tell, about 55% of all Fediverse users are on the top 20 biggest servers. About 88% are on the top 100; about 99% are on the top 1000 biggest servers.
Replying to @omkar_foss@mastodon.social
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The method is adding the user count for the top N servers and then dividing that by the total user count for the Fediverse (or at least all known servers).
You can get the user count from a server using Nodeinfo.
Replying to @evan@cosocial.ca
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@evan Thank you!
Replying to @omkar_foss@mastodon.social
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@omkar_foss not all Fediverse software supports Nodeinfo, so it's an estimate rather than a measurement.
You also have to know that a server exists. There's a Mastodon API endpoint that shows which other servers a server has seen; you can use that to do a breadth-first survey of the network.
Replying to @evan@cosocial.ca
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@evan sure, I think an estimate might be good enough to understand Fediverse health.
I guess /instance/peers might be the Mastodon API endpoint that you mention: https://docs.joinmastodon.org/methods/instance/#peers
docs.joinmastodon.org/methods/instance/#peersReplying to @omkar_foss@mastodon.social
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@omkar_foss Yes, I think that's it!