Source of b23.wtf, a tracing-free bilibili short URL service.
Here's also a browser userscript for replacing destinations to b23.tv on *.bilibili.com, hosted on GreasyFork.
Identical service is available through: b23.wtf, b23.tf, b23.icu, bili2233.ch
https://b23.wtf/api?full=[url]
302 to URL
https://b23.wtf/api?full=[url]&status=200
200 with URL plain text
https://b23.wtf/setautoredirect[1,0]
set-cookie to turn on/off unconditional auto-redirect