Stack Exchange networkの全てのサイトでToo Many Requests - Stack Exchangeと表示される

Question

Stack Exchange networkの全てのサイトでToo Many Requests - Stack Exchangeと表示される

Too many requests
This IP address (...) has performed an unusually high number of requests and has been temporarily rate limited. If you believe this to be in error, please contact us at [e-mail].

When contacting us, please include the following information in the email:

Method: rate limit

XID: ...

IP: ...

X-Forwarded-For: ...

User-Agent: Mozilla/5.0...

Reason: Request rate exceeded.

Time: Sat, 18 Mar 2023 ...

URL: ja.stackoverflow.com

Browser Location: https://ja.stackoverflow.com