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fosstodon.org
Languages English (en)
Users 62,487
Active users (last month) 8,407
Active users (last six months) 12,636
Characters per post (max) 500
Known instances 65,331
First sight Before Oct 14, 2020 UTC [?]
Last successful check Nov 15, 2025 UTC
Noxious No
New No
Software Mastodon 4.5.1
Registrations Closed
Meta’s Threads moderation Unknown (this instance is not listed in the Anti-Meta Fedi Pact list), and its list of moderated instances is not accessible.
Most used hashtags (last week) FensterFreitag, WindowFriday, TOTP, VendrediLecture, FootpathFriday, FurSuitFriday, JukeboxFridayNight, Friday, FungiFriday, LetterboxdFriday
Short description
Fosstodon is an invite only Mastodon instance that is open to those who are interested in technology; particularly free & open source software.

If you wish to join, contact us for an invite.
Long description
Proudly powered by Fastly

We've teamed up with Fastly to provide both CDN and DDoS mitigation to our users, improving both performance and uptime.

Huge thanks to the team at Fastly for supporting Fosstodon.

Code of Conduct

The code of conduct at Fosstodon can be simply summarised as "don't be a jerk". However, if you need more detail as to what we consider unacceptable behaviour, please take a look at our code of conduct.

Support Fosstodon

If you enjoy your time on Fosstodon and want to support what we're doing here, you can do so in a number of ways. To find out how, use the link below:
https://hub.fosstodon.org/support

Fosstodon Hub

We have created a mini-site called the Fosstodon Hub. It contains useful information about Fosstodon in the form of a blog.
https://hub.fosstodon.org

Longevity and Fosstodon

One of the issues with a federated social network like Mastodon is users need to be sure their instance isn’t going to disappear overnight. This has happened a number of occasions we've seen, and we want to ease your mind in that regard should you choose Fosstodon.
Our Commitment to You
Instance rules
  1. DO NOT disparage individuals or groups
  2. DO NOT use slurs
  3. DO NOT harass
  4. DO NOT knowingly post misleading information
  5. DO NOT participate in engagement that is intended to antagonize, inflame, or cause confrontation.
  6. DO NOT post adult or age-restricted content. This includes nudity and other sexualized or violent content.
  7. DO NOT post commercial promotions, or advertise
  8. DO NOT use automated tools to post without also monitoring and/or interacting from your account.
Moderated instances [?]
Not available
Instances certainly moderating this instance [?]
  1. ailbhean.co-shaoghal.net: limitation
  2. arff.archandle.net: suspension
  3. artisan.chat: limitation
  4. awaymessage.club: suspension
  5. bdsm-jp.club: limitation
  6. biscuit.town: limitation
  7. breizh.social: suspension
  8. butts.team: suspension
  9. cathode.church: limitation
  10. ceilidh.online: suspension
  11. chilemasto.casa: suspension
  12. connectified.com: suspension
  13. corneill.es: limitation
  14. cutie.city: limitation
  15. deadinsi.de: limitation
  16. eldritch.cafe: suspension
  17. fandom.garden: limitation
  18. flipping.rocks: suspension
  19. freethought.online: limitation
  20. furry.community: suspension
  21. fv.technogothic.net: limitation
  22. glaceon.social: suspension
  23. glauca.space: suspension
  24. glitch-dev.pixie.town: suspension
  25. goblin.camp: suspension
  26. h-i.social: limitation
  27. icosahedron.website: suspension
  28. is.nota.live: limitation
  29. jubi.life: suspension
  30. koehlercode.dev: limitation
  31. krgr.social: limitation
  32. lacommu.net: limitation
  33. lgbt.io: suspension
  34. m.noxie.ch: suspension
  35. masto.donte.com.br: suspension
  36. masto.nd2.uk: suspension
  37. mastodon.art: suspension
  38. mastodon.balamb.fr: limitation
  39. mastodon.koehlercode.dev: limitation
  40. mastodon.parleur.net: suspension
  41. mastodon.sandwich.net: limitation
  42. mastodon.slightlycyberpunk.com: suspension
  43. mastodon.yurialbuquerque.dev: suspension
  44. meerjungfrauengrotte.de: limitation
  45. metroholografix.ca: suspension
  46. miserables.net: limitation
  47. monads.online: suspension
  48. monsterfuckers.online: suspension
  49. mstdn.isometry.group: limitation
  50. myasstodon.xyz: suspension
  51. mytter.jp: suspension
  52. neopaquita.es: limitation
  53. neuropaganes.masto.host: suspension
  54. octodon.social: limitation
  55. oomfie.city: limitation
  56. pagan.plus: limitation
  57. pizza.enby.city: limitation
  58. plush.city: limitation
  59. polyglot.city: limitation
  60. rage.love: suspension
  61. religion.masto.host: limitation
  62. simcha.lgbt: suspension
  63. social.finkhaeuser.de: suspension
  64. social.mootech.eu: suspension
  65. social.pawsitiv.space: limitation
  66. social.zvavybir.eu: suspension
  67. solarpunk.moe: limitation
  68. spanner.works: suspension
  69. starlite.rodeo: limitation
  70. strangeobject.space: limitation
  71. toot.beep.computer: suspension
  72. toot.mrah.live: suspension
  73. weirder.earth: suspension
  74. wolfbunny.lgbt: suspension
  75. writeout.ink: limitation
  76. www.librepunk.club: limitation
  77. yazoocity.us: suspension
  78. zeal.center: limitation
Admin account Opted out of search engines indexing
Date of creation Not available
Display name Not available
Bio
Not available
Statistics
Last 12 weeks activity (totals: 147127 statuses, 75049 logins, 85 registrations)
S: 12285
L: 6556
R: 8		S: 13474
L: 6499
R: 4		S: 13484
L: 6618
R: 3		S: 13521
L: 6626
R: 12		S: 12983
L: 6496
R: 7		S: 13311
L: 6529
R: 6		S: 13235
L: 6445
R: 8		S: 13146
L: 6491
R: 7		S: 13678
L: 6422
R: 11		S: 13118
L: 6449
R: 10		S: 12975
L: 6429
R: 9		S: 1917
L: 3489
R: 0
Last checks (green: OK; red: KO)
11/8/25, 3:33:32 AM UTC11/9/25, 2:38:30 AM UTC11/10/25, 2:23:08 AM UTC11/11/25, 3:32:57 AM UTC11/12/25, 2:22:59 AM UTC11/13/25, 2:38:13 AM UTC11/14/25, 2:31:38 AM UTC11/15/25, 3:02:37 AM UTC
Succesful checks: 1176/1177 (99.92%)