Couldn't retrieve http://loole.info, and the only explanation I have is:
HTTP/1.1 400 Bad Request
Connection: close
Date: Wed, 30 Jul 2025 13:30:55 GMT
Server: cloudflare
Content-Type: text/html
Alt-Svc: h3=":443"; ma=86400
Cf-Cache-Status: DYNAMIC
CF-RAY: 9675369d6b3c4f77-EWR
Client-Date: Wed, 30 Jul 2025 13:30:55 GMT
Client-Peer: 104.21.80.1:80
Client-Response-Num: 1
Client-Transfer-Encoding: chunked
Nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Report-To: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=UhS2OkY2jYuYco%2Bzd7s0EVjsVuooRenccmjznPY3Hf7wvETcY0D0Qu1%2BhraSGRO34C%2Bb%2F%2FTgYgBiodBppwimR0z%2FuMxw0uQn%2BH8%3D"}]}
Title: 400 Bad Request
400 Bad Request
400 Bad Request
nginx