Overview of services running on Port 636 TCP.
~98 Thousand IP addresses observed from May to December 2012
To get raw lists of the data go to Download. For an explanation of what this data is and how it was obtained, see Paper.

Servicename Product Version Count Percent
sslTLSv16734368.694
sslSSLv32103621.458
sslMicrosoft IIS SSL32333.298
chatAIM or ICQ server23002.346
no match-/--/-16661.699
http4150.423
httplighttpd1.4.194070.415
httpMicrosoft IIS httpd1940.198
httpGoAhead-Webs httpd1290.132
httpMicrosoft HTTPAPI httpd2.01160.118
httpthttpd2.241000.102
ssh980.1
vncVNC500.051
telnet470.048
arcserveARCserve Discovery390.04
httpHikvision-Webs360.037
sslmulti-vendor SSL340.035
httpthttpd2.25b330.034
httpBoa HTTPd0.94.14rc21320.033
httpApache Tomcat/Coyote JSP engine1.1310.032
ftp230.023
http-proxySquid http proxy2.6.STABLE12220.022
httpthttpd160.016
ftpvsftpd2.0.8 or later160.016
ftpMicrosoft ftpd160.016