Overview of services running on Port 591 TCP.
~14 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 Count Percent
http367624.741
httpSonicWALL354523.859
chatAIM or ICQ server155910.493
no match-/-9356.293
httpAIM6714.516
httplighttpd6684.496
httpFileMaker Web Publishing httpd5603.769
httpApache4382.948
httpMicrosoft IIS httpd3652.457
httpNetwork Associates ePolicy Orchestrator1491.003
httpFileMakerPro httpd1400.942
httpthttpd1350.909
httpDrcomServer1.01100.74
httpApache Tomcat/Coyote JSP engine940.633
httpWebCompanion httpd 6.0v1920.619
httpNetwave IP camera http config880.592
ssh870.586
httpGoAhead-Webs810.545
httpAvtech AVN801 network camera700.471
httpWebCompanion httpd 6.0v3690.464
sshOpenSSH590.397
httpBoa HTTPd520.35
httpPDR-M800500.337
telnet420.283
smtp420.283
vncVNC400.269
httpmini_httpd370.249
httpWebCompanion httpd 6.0Jv1280.188
httpHikvision-Webs260.175
httpuc-httpd240.162
httpnginx240.162
ftpMicrosoft ftpd230.155
mysqlMySQL220.148
httpMbedthis-Appweb210.141
httpWebCompanion httpd 5.5v3200.135
http-proxySquid http proxy190.128
httpGadspot/Avtech AV787 webcam http config190.128
httpFileMakerPro170.114
httpCross Web Server170.114
smtpMicrosoft ESMTP160.108
httpuTorrent WebUI160.108
httpWebCompanion httpd 5.5v4150.101
directconnectDirect Connect P2P150.101
httpGoAhead-Webs embedded httpd140.094
httpWebCompanion httpd 6.0v2130.087
http-proxyF5 BIG-IP load balancer http proxy130.087
httpMicrosoft HTTPAPI httpd130.087
httpWebCompanion httpd 6.0Jv3120.081
httpSecure Computing Sidewinder firewall http admin120.081
httpGeoVision GeoHttpServer for webcams120.081
ftpProFTPD120.081
ftp120.081
httpAIM HTTP110.074
ftpServ-U ftpd110.074
httpNAI EPO Agent framework100.067