443/tcp
TLS
first 2026-06-08 · last 2026-06-08
- TLS
- TLSv1.2
- Certificate for
- *.circlon.de, circlon.de
- Issued by
- Starfield Secure Certificate Authority - G2
- Valid
- 2026-03-09 → 2026-09-23
Raw response
HTTP/1.1 400 Bad Request Server: nginx/1.22.1 Date: Mon, 08 Jun 2026 22:19:49 GMT Content-Type: text/html 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/1.22.1</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 -->