Alt Text Health Check

https://mastodon.social/@AltTextHealthCheck

Tracking percent of images with alt text posted to https://mstdn.social public timeline

opensource code here: https://github.com/stefanhayden/AltTextHealthCheck

a bot by stefan@gardenstate.social

Public Key

npub1na4lm5e44tmd8dphess4hvxnzeqtp7zp23ttp9xhrcpkek00kuss5xmq44

NIP-05 Address

alttexthealthcheck_at_mastodon.social@momostr.pink

Profile Code

nprofile1qqsf76la6v664aknksmucg2mkrf3vs9slpq4g44sjnt3uqmvm8hmwggpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0ds3r3plf

Publishing to

nostr.mom

nos.lol

relay.damus.io

Author Public Key

npub1na4lm5e44tmd8dphess4hvxnzeqtp7zp23ttp9xhrcpkek00kuss5xmq44

Show more details

Last Notes

2026-03-30 12:15:05 UTC

Results from tracking 17,695 images across 1,070 instances from the mstdn.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 25 images (1.5x the average).
https://files.mastodon.social/media_attachments/files/116/318/070/704/336/378/original/99455e213e8322fd.png

2026-03-18 12:15:06 UTC

Results from tracking 18,187 images across 1,094 instances from the mstdn.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 25 images (1.5x the average).
https://files.mastodon.social/media_attachments/files/116/250/123/032/522/720/original/449f8ed952731b0f.png

2026-02-14 12:15:06 UTC

Results from tracking 16,219 images across 1,094 instances from the mstdn.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 22 images (1.5x the average).
https://files.mastodon.social/media_attachments/files/116/068/929/124/785/178/original/61d1222f26a394c0.png

2026-02-12 12:15:06 UTC

Results from tracking 16,900 images across 1,062 instances from the mstdn.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 24 images (1.5x the average).
https://files.mastodon.social/media_attachments/files/116/057/604/450/878/011/original/1a040232ad8650fc.png

2026-02-09 23:15:05 UTC

Results from tracking 19,223 images across 1,194 instances from the mstdn.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 24 images (1.5x the average).
https://files.mastodon.social/media_attachments/files/116/043/212/742/961/270/original/3f38d79e0416da78.png

2026-01-13 12:15:05 UTC

Results from tracking 30,991 images across 1,456 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 32 images (1.5x the average).
https://files.mastodon.social/media_attachments/files/115/887/735/090/093/001/original/0c9a2a3431404c28.png

2026-01-08 12:15:06 UTC

Results from tracking 32,630 images across 1,490 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 33 images (1.5x the average).
https://files.mastodon.social/media_attachments/files/115/859/423/599/175/878/original/21c6f65cd1ffc117.png

2025-12-24 23:15:06 UTC

Results from tracking 35,937 images across 1,705 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 32 images (1.5x the average).
https://files.mastodon.social/media_attachments/files/115/777/084/171/935/405/original/f55f9c632f0c5cea.png

2025-12-04 12:15:07 UTC

Results from tracking 33,381 images across 1,564 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 32 images (1.5x the average).
https://files.mastodon.social/media_attachments/files/115/661/242/793/891/994/original/2ea75f6e22ff09d1.png

2025-11-05 23:15:06 UTC

Results from tracking 35,415 images across 1,626 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 44 images (2x the average).
https://files.mastodon.social/media_attachments/files/115/499/630/957/491/263/original/06f3f7a954d058ee.png

2025-09-26 23:00:07 UTC

Tracked 32,114 posts across 2,665 instances.
Federated: 44% - Found 16,749 descriptions set on 37,742 images.
Local: 27% - Found 2,517 descriptions set on 9,330 images.
https://files.mastodon.social/media_attachments/files/115/273/079/607/864/601/original/ebfa06af7c3c6f9f.png

2025-08-21 12:15:06 UTC

Results from tracking 34,715 images across 1,479 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 47 images (2x the average).
https://files.mastodon.social/media_attachments/files/115/066/700/158/116/399/original/d3b6d1486fe8c624.png

2025-07-26 12:15:07 UTC

Results from tracking 34,395 images across 1,467 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 47 images (2x the average).
https://files.mastodon.social/media_attachments/files/114/919/480/114/360/910/original/f3eb607ad9d8be9b.png

2025-07-26 12:00:06 UTC

Tracked 28,980 posts across 2,611 instances.
Federated: 43% - Found 14,630 descriptions set on 34,188 images.
Local: 26% - Found 2,045 descriptions set on 7,868 images.
https://files.mastodon.social/media_attachments/files/114/919/421/108/081/471/original/fe0039440983faa3.png

2025-06-13 12:15:07 UTC

Results from tracking 38,330 images across 1,606 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 48 images (2x the average).
https://files.mastodon.social/media_attachments/files/114/676/000/841/358/605/original/374bb772e765eb6e.png

2025-05-19 23:00:05 UTC

Tracked 32,248 posts across 2,687 instances.
Federated: 43% - Found 16,378 descriptions set on 38,086 images.
Local: 27% - Found 2,793 descriptions set on 10,317 images.
https://files.mastodon.social/media_attachments/files/114/536/979/174/840/212/original/50ea501746252033.png

2025-04-01 23:15:06 UTC

Results from tracking 37,156 images across 1,709 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 43 images (2x the average).
https://files.mastodon.social/media_attachments/files/114/265/247/334/371/547/original/3f8299d0372ce375.png

2025-02-17 12:00:06 UTC

Tracked 27,137 posts across 2,787 instances.
Federated: 43% - Found 13,547 descriptions set on 31,537 images.
Local: 27% - Found 2,243 descriptions set on 8,420 images.
https://files.mastodon.social/media_attachments/files/114/019/113/739/496/517/original/4ae295095d7b24ac.png

2025-02-08 12:15:05 UTC

Results from tracking 34,127 images across 1,584 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 43 images (2x the average).
https://files.mastodon.social/media_attachments/files/113/968/211/900/454/335/original/92a634fa9567643c.png

2025-02-04 12:00:05 UTC

Tracked 28,839 posts across 2,763 instances.
Federated: 40% - Found 13,552 descriptions set on 33,709 images.
Local: 22% - Found 2,191 descriptions set on 9,909 images.
https://files.mastodon.social/media_attachments/files/113/945/503/671/464/298/original/4dab3cb4bd7a98dc.png

2025-01-28 12:15:05 UTC

Results from tracking 32,060 images across 1,611 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 40 images (2x the average).
https://files.mastodon.social/media_attachments/files/113/905/926/493/044/873/original/bddc279c56689031.png

2025-01-28 12:00:05 UTC

Tracked 27,380 posts across 2,841 instances.
Federated: 41% - Found 13,060 descriptions set on 31,798 images.
Local: 27% - Found 2,451 descriptions set on 9,106 images.
https://files.mastodon.social/media_attachments/files/113/905/867/494/392/750/original/347e37835b02bce5.png

2025-01-06 12:15:05 UTC

Results from tracking 27,813 images across 1,461 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 38 images (2x the average).
https://files.mastodon.social/media_attachments/files/113/781/355/668/175/451/original/3f4e2388c32e9129.png

2024-12-28 23:15:06 UTC

Results from tracking 31,699 images across 1,581 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 40 images (2x the average).
https://files.mastodon.social/media_attachments/files/113/732/990/123/334/872/original/0c5d651d297fc489.png

2024-12-10 12:00:05 UTC

Tracked 25,218 posts across 2,764 instances.
Federated: 40% - Found 11,903 descriptions set on 29,478 images.
Local: 21% - Found 1,509 descriptions set on 7,106 images.
https://files.mastodon.social/media_attachments/files/113/628/414/278/809/636/original/5a7542faca1d572e.png

2024-12-04 12:00:05 UTC

Tracked 24,296 posts across 2,765 instances.
Federated: 42% - Found 11,829 descriptions set on 28,312 images.
Local: 23% - Found 1,771 descriptions set on 7,822 images.
https://files.mastodon.social/media_attachments/files/113/594/440/431/522/027/original/567734c515461ab8.png

2024-11-20 23:15:04 UTC

Results from tracking 31,063 images across 1,622 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 38 images (2x the average).
https://files.mastodon.social/media_attachments/files/113/517/822/234/811/834/original/ce8a79c2f83112f0.png

2024-11-12 23:00:09 UTC

Tracked 26,273 posts across 2,737 instances.
Federated: 42% - Found 12,822 descriptions set on 30,640 images.
Local: 23% - Found 2,056 descriptions set on 8,892 images.
https://files.mastodon.social/media_attachments/files/113/472/465/046/805/828/original/86de0b6dca8890f3.png

2024-11-12 12:15:05 UTC

Results from tracking 27,029 images across 1,535 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 35 images (2x the average).
https://files.mastodon.social/media_attachments/files/113/469/928/497/746/251/original/0cfacfd02410ea7c.png

2024-10-08 23:15:05 UTC

Results from tracking 32,938 images across 1,639 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 40 images (2x the average).
https://files.mastodon.social/media_attachments/files/113/274/342/913/160/393/original/edcf596e7b88dc2f.png

2024-09-21 12:15:05 UTC

Results from tracking 28,631 images across 1,534 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 37 images (2x the average).
https://files.mastodon.social/media_attachments/files/113/175/488/436/045/298/original/1daa68de85e8ee4e.png

2024-09-21 12:00:05 UTC

Tracked 24,121 posts across 2,768 instances.
Federated: 39% - Found 11,145 descriptions set on 28,521 images.
Local: 19% - Found 1,347 descriptions set on 7,047 images.
https://files.mastodon.social/media_attachments/files/113/175/429/459/965/006/original/9ddc252e76b1ffc8.png

2024-09-18 12:00:04 UTC

Tracked 26,070 posts across 2,717 instances.
Federated: 38% - Found 11,296 descriptions set on 30,036 images.
Local: 20% - Found 1,549 descriptions set on 7,625 images.
https://files.mastodon.social/media_attachments/files/113/158/442/463/274/652/original/d15a0d63dc336325.png

2024-07-30 12:15:05 UTC

Results from tracking 27,141 images across 1,514 instances from the mastodon.social federated timeline.
Then filtering down to the top 1000 instances by active user from instances.social who had posted at least 36 images (2x the average).
https://files.mastodon.social/media_attachments/files/112/875/385/988/800/104/original/6ee6eaf8a01b35a1.png