Rob Ricci
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ricci.io
Rob Ricci
@ricci.io
Research Professor in the Kahlert School of Computing at the University of Utah

Not planning to be here much, my main account is on the fediverse at https://discuss.systems/@ricci/ - you can follow it directly here as
@ricci.discuss.systems.ap.brid.gy‬
New type of data up on arewedecentralizedyet.online : Bluesky trusted verifiers! Are all those blue checks being given out by the same verifiers? (answer: mostly, but by no means all!)

Many thanks to @bskycheck.com for the data!
January 24, 2026 at 6:36 AM
Launching their new social network, W, the EU posted a map of where other social networks are hosted. It showed nothing in Europe.

But their map is wrong.

Here's what Bluesky and the broader Atmosphere actually look like

arewedecentralizedyet.online/map/?source=at
January 22, 2026 at 1:45 AM
I've moved arewedecentralizedyet.online to new datasources, including actual monthly-active-user counts for the #atproto world. Using actual MAUs, there are a full 1% of active accounts now that are not on Bluesky PBC PDSes.
January 14, 2026 at 6:01 AM
December 24, 2025 at 2:40 AM
December 23, 2025 at 5:21 AM
eg. this is my mastodon feed today, 20% of the posts are from an instance that defederates from the big ones
December 2, 2025 at 8:44 PM
I've been using this site for several months, and I still don't know what this button does, but "viewing the full thread" definitely ain't it
December 2, 2025 at 4:11 PM
atproto on a roll!
October 24, 2025 at 6:42 AM
Wow this past week is by far the biggest jump in the Shannon Index (measure of how spread out users are across PDSes) for the atproto world since I started tracking, right on
October 11, 2025 at 3:19 PM
ICYMI: arewedecentralizedyet.online now has some features that show trends over time so you can watch user data get spread out more, whether you like waffles or not, and as the atproto ecosystem grows
October 4, 2025 at 6:12 PM
Well, the "DEC/ACC" strategy seems to be having a measurable impact
October 3, 2025 at 11:52 PM
Yeah and after a big week of increase in distribution across PDSes, the trend has flattened back out; the userbase on bluesky PDSes grows so fast that it's a race that's hard to win.
September 21, 2025 at 2:25 PM
FYI I'm still pondering this but I used my evening to add another feature that I think highlights the progress the atmosphere is making
September 16, 2025 at 3:22 AM