443/tcp
TLS
first 2026-09-23 · last 2026-09-23
- TLS
- TLSv1.2
- Certificate for
- *.qwbx.ouc-online.com.cn, qwbx.ouc-online.com.cn
- Issued by
- RapidSSL TLS RSA CA G1
- Valid
- 2026-09-08 → 2027-02-26
Raw response
HTTP/1.1 400 Bad Request Date: Wed, 23 Sep 2026 17:10:24 GMT Content-Type: text/html Content-Length: 622 Connection: close Server: elb <html> <head><title>400 The plain HTTP request was sent to HTTPS port</title></head> <body> <center><h1>400 Bad Request</h1></center> <center>The plain HTTP request was sent to HTTPS port</center> </body> </html> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page -->