The awesome-lemmy-instances repo on GitHub displays uptime:

• https://github.com/maltfield/awesome-lemmy-instances/

See this list of “Privacy-Conscious Email Services”

• https://prxbx.com/email/

I found this site that tracks uptime of lemmy services. They have an API that helps you construct a query in the WUI.

• • https://api.fediverse.observer/

Or you can use cURL to get the uptime of all known lemmy instances

curl 'https://api.fediverse.observer/' -X POST -H 'Accept: */*' -H 'Accept-Language: en-US,en;q=0.5' -H 'Content-Type: application/json' --data-raw '{"query":"query{\n  nodes (softwarename: \"lemmy\") {\ndomain uptime_alltime\n  }\n}\n"}'

See also:

• https://github.com/maltfield/awesome-lemmy-instances/issues/7

@mobiuscoffee@sh.itjust.works found one that monitors uptime!

• https://lemmy.fediverse.observer/list

Anyone know who runs that site? Do they have an account here on lemmy?

See also

• https://softwarerecs.stackexchange.com/questions/87230/lightweight-cli-website-uptime-monitoring

Ideally I’d want something that I just feed a config file, a sqlite db file, tell it to “run”, and then it spits-out the uptime for each site

Interesting. So I guess that functionality is disabled when the admin has a non-null list set for allowed

So if a user searches for a community on another instance, does that mean that the instance that they’re following is automatically added to the linked list or no?

If so, does that happen when they subscribe or when they search?

Linked just means they actively federate

What does “actively federate” mean? What does it mean to be “inactively federating”?

What impact does it have on the user of these instances?

See also

• https://github.com/LemmyNet/joinlemmy-site/issues/157#issuecomment-1579588891

Regarding “federation state”: You can have a blocklist, then Lemmy will federate with every instance except blocked ones. Or have an allowlist, then it will only federate with the allowed ones. If neither is set then it also federate with everything. Using allowlist and blocklist together doesnt make much sense, then it would only federate with allowed instances which are not in the blocklist.

…but this doesn’t address what linked does

See also Is it possible to query a lemmy instance’s Federation State?

• https://lemmy.ml/comment/463055

Thanks. See also https://github.com/LemmyNet/lemmy-stats-crawler/issues/4

wait but there’s three states. If it’s not allowlist then it’s either open or blocklist – according to the documentation.

Are you suggesting that if both are null then the federation state is set to open?

Thanks! I can’t find any field that specifies open or blocklist or allowlist but I do see arrays for linked and allowed and blocked. My best-guess is:

• if allowed is not null, then the server’s federation is in allowlist state
• if blocked is not null, then the server’s federation is in blocklist state

…but I could be totally wrong

And I don’t know how to determine if the server’s federation state is open.

It would be good if we had three example servers – one in each state (open, blocklist, and allowlist) so that I could compare the API’s output for each.

Edit: /u/Nutomic clarified this on GitHub:

• https://github.com/LemmyNet/joinlemmy-site/issues/157#issuecomment-1579588891

Regarding “federation state”: You can have a blocklist, then Lemmy will federate with every instance except blocked ones. Or have an allowlist, then it will only federate with the allowed ones. If neither is set then it also federate with everything. Using allowlist and blocklist together doesnt make much sense, then it would only federate with allowed instances which are not in the blocklist.

The sourcecode is here afaict https://codeberg.org/wintermute/lemmymap

It says they use lemmy-stats-crawler, but I can’t get it to run on Debian 11. And I can’t open issues on that repo.

thanks! Unfortunately that site is basically unuseable for me, but perhaps if we dig into their code, we’ll find how they figure out the federation state…

anyway, I’m posting here to figure out what data can be queried. Otherwise, it’s manual entry and that’s a maintenance nightmare.

that’s my issue ;)

Related: see also my feature request for join-lemmy.org to display this information about each instance in a data table that compares each instance available:

• https://github.com/LemmyNet/joinlemmy-site/issues/157