2020-01-12 UTC
# 
@t 🎉🎂 Happy 3rd birthday #Webmention! https://indieweb.org/Webmention @W3C Recommendation published 2017-01-12 with a still live robust test suite, Webmention has more interoperable implementations than any other federated peer-to-peer social web protocol, ...
https://tantek.com/t54Z1 (twitter.com/_/status/1216380158812123136)