Hmmm, some InboxTimeouts are to be expected. The second one could be the result of a scraper or bot. It’s still strange your federation list is empty. I’d take a look at the database, clearing the federation queue (public.federation_queue_state) is a good idea. ‘public.instance’ should be populated with servers (mine has 2836). Peaking into the log files of the database could give some more insight as well.

A successfully federated incoming action will look like this: 2025-07-14T22:40:54.321151Z INFO HTTP request{http.method=POST http.scheme="http" http.host=0d.gs http.target=/inbox otel.kind="server" request_id=61bf0ea2-8df3-42ff-a433-3bec8b37047c}: actix_web::middleware::logger: 10.10.0.1 'POST /inbox HTTP/1.1' 200 0 '-' 'Lemmy/0.19.12; +https://lemmy.ml/' 0.158242

Your outgoing federation seems to be fine now on my end, this is how my server sees yours:

id 2794; ;domain "blog.kaki87.net"; published "2025-06-30T11:35:32.398830Z" ;updated "2025-07-14T00:42:32.758669Z" ;software "lemmy" ;version "0.19.11" ;federation_state: ;instance_id 2794 ;last_successful_id 46037 ;last_successful_published_time "2025-07-14T21:12:27.481507Z" ;fail_count 0

You could try updating or reinstalling your back-end as well, lemmy is at 0.19.12.

I love these so much thanks! On YouTube there’s also a ton in video format, like this one by Brian May.

/inbox is the endpoint for federation with ActivityPub, so definitely on the right track. Try increasing verbosity to get a full stack traceback to where in the code it’s bugging.

InboxTimeout means your server is taking too long to process API calls to /inbox, I’ve had them before too due to misconfiguration of the reverse proxy. Make sure you’re passing on the right headers, especially the IP headers so they aren’t rate limited and the Accept header so your server knows to send json when requested.

Troubleshooting federation gives many options for testing and checking your configuration, running through them might give your more insight.

Lemmy’s docs show how to increase the verbosity of your logs, taking a look at them could point to possibly issues.

Compare https://blog.kaki87.net/api/v3/federated_instances with https://jlai.lu/api/v3/federated_instances and I don’t think your server is federating properly. This graph of instance health shows federation stopped around 20/06.

Since then, your new posts have federated to for example my server and lemmy.world, but 2 new posts from the last week did not make it to my server.

I tried voting on this post with lemmy.world and the same post with 0d.gs which do not seem to federate but are visible on their respective servers.

The strange thing is, in my Lemmy back-end, everything seems normal, and your server is telling mine it’s receiving correctly, but we can see it is not.

I left a comment on your server but it doesn’t seem to be federating so I’ll leave it here as well! original comment

Terribly sorry about nerd sniping you! I’m the owner of martijn.sh, and I’m guessing it was only a matter of time. We’re solving the same problem in a completely different way though, so I’ll definitely be following your progress and might use it for my lemmy instance as well.

The only difficulty I’ve found is when federating our small instances to lemmy. Your community only federates with other servers if at least one user on that instance is subscribed to it. An easy way to fast track federation is using lemmy-federate. If you register your instance and your community, an army of bots will automatically subscribe to your community making it available on many more instances at once. The only reason your server now federates with mine is because I searched for it manually and subscribed that way.

Anyway, best of luck on your blog. If you’ve questions or want to discuss, feel free to send me a message!

My first year professor in electronics started his first lecture “yeah so forget everything you’ve learned about electricity because it’s wrong” - then gave out an infinite matrix of resistors and made us cry.

That episode was probably one of the best in the series! If someone’s wondering: Game Changer by dropout S7E1

PS: I’ve been here the whole time!