443/tcp
TLS
first 2026-08-28 · last 2026-08-28
- TLS
- TLSv1.2
- Certificate for
- *.dnsdb.info, dnsdb.info
- Issued by
- Sectigo Public Server Authentication CA DV R36
- Valid
- 2025-08-12 → 2026-09-11
Raw response
HTTP/1.1 400 Bad Request Server: nginx/1.18.0 Date: Fri, 28 Aug 2026 00:14:50 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/1.18.0</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 -->