443/tcp
TLS
first 2026-06-08 · last 2026-06-08
- TLS
- TLSv1.2
- Certificate for
- *.corp.retn.net, owa.corp.retn.net, mail.corp.retn.net, autodiscover.corp.retn.net, www.corp.retn.net, corp.retn.net
- Issued by
- GlobalSign GCC R3 DV TLS CA 2020
- Valid
- 2026-05-15 → 2026-11-30
Raw response
HTTP/1.1 400 Bad Request Server: nginx/1.23.1 Date: Mon, 08 Jun 2026 06:40:55 GMT Content-Type: text/html; charset=utf-8 Content-Length: 657 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>nginx/1.23.1</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 -->