443/tcp
TLS
first 2026-06-07 · last 2026-06-07
- TLS
- TLSv1.2
- Certificate for
- *.schulergroup.com, schulergroup.com
- Issued by
- Sectigo Public Server Authentication CA OV R36
- Valid
- 2025-08-10 → 2026-09-10
Raw response
HTTP/1.1 400 Bad Request Date: Sun, 07 Jun 2026 09:11:43 GMT Server: server X-XSS-Protection: 1; mode=block Referrer-Policy: strict-origin-when-cross-origin Content-Length: 438 Connection: close Content-Type: text/html; charset=iso-8859-1 <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>400 Bad Request</title> </head><body> <h1>Bad Request</h1> <p>Your browser sent a request that this server could not understand.<br /> Reason: You're speaking plain HTTP to an SSL-enabled server port.<br /> Instead use the HTTPS scheme to access this URL, please.<br /> </p> <hr> <address>server Server at mobile01.schulergroup.com Port 443</address> </body></html>