Port 636LDAPS
LDAP over TLS
About Port 636
LDAPS provides encrypted LDAP communication using TLS. It is the secure counterpart to plain LDAP on port 389, commonly used for Active Directory access.
Security NotesEnsure valid certificates and modern TLS versions. LDAPS should still be restricted to internal networks when possible.
Total Hosts
505.8K
TLS Encrypted
99.9%
Vulnerable Hosts
1.6K
Countries
10+
Top Services
| http | 274,385 |
| https | 226,509 |
| nas | 861 |
| home-automation | 660 |
| firewall | 570 |
| telnet | 325 |
| upnp | 311 |
| http-proxy | 291 |
| mongodb | 179 |
| camera | 164 |
Top Countries
 United States | 215,380 |
 Germany | 37,831 |
 Switzerland | 24,355 |
 Israel | 21,419 |
 China | 18,457 |
 France | 12,518 |
 Hong Kong | 12,344 |
 Italy | 10,704 |
 United Kingdom | 9,186 |
 Netherlands | 8,660 |
Top Products
| HTTP | 45,364 |
| Tengine | 28,150 |
| Synology DSM | 5,303 |
| Nginx | 2,435 |
| Plex Media Server httpd | 2,315 |
| Apache HTTP Server | 1,414 |
| OpenResty | 930 |
| Apache | 881 |
| Microsoft HTTPAPI httpd | 877 |
| Python | 750 |