Couldn't retrieve http://jmatlab.org, and the only explanation I have is:
HTTP/1.1 400 Bad Request
Connection: close
Date: Wed, 30 Jul 2025 13:11:04 GMT
Server: openresty/1.13.6.1
Content-Type: text/plain
Client-Date: Wed, 30 Jul 2025 13:11:04 GMT
Client-Peer: 198.58.118.167:80
Client-Response-Num: 1
Client-Transfer-Encoding: chunked
Invalid Request