443/tcp
TLS
first 2026-09-23 · last 2026-09-23
- TLS
- TLSv1.2
- Certificate for
- *.rtc.qq.com, *.rtc.qcloud.com, rtc.qq.com
- Issued by
- DigiCert Secure Site OV G2 TLS CN RSA4096 SHA256 2022 CA1
- Valid
- 2025-10-10 → 2026-11-10
Raw response
HTTP/1.1 400 Bad Request Server: stgw Date: Wed, 23 Sep 2026 18:29:33 GMT Content-Type: text/html Content-Length: 649 Connection: close <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> <hr><center>stgw</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 -->