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 Version Count Percent
http367624.741
httpSonicWALL354523.859
chatAIM or ICQ server155910.493
no match-/--/-9356.293
httpAIM1.06714.516
httpFileMaker Web Publishing httpd5603.769
httplighttpd1.4.193802.558
httplighttpd1.4.292561.723
httpMicrosoft IIS httpd6.01891.272
httpNetwork Associates ePolicy Orchestrator1491.003
httpDrcomServer1.01100.74
httpApache Tomcat/Coyote JSP engine1.1930.626
httpWebCompanion httpd 6.0v1920.619
httpNetwave IP camera http config880.592
ssh870.586
httpFileMakerPro httpd4.0820.552
httpGoAhead-Webs810.545
httpthttpd2.24 26oct2003780.525
httpMicrosoft IIS httpd7.5740.498
httpAvtech AVN801 network camera1.0700.471
httpWebCompanion httpd 6.0v3690.464
httpApache670.451
httpFileMakerPro httpd5.0580.39
httpPDR-M8001.0500.337
httpMicrosoft IIS httpd7.0470.316
httpApache2.2.3460.31
telnet420.283
smtp420.283
httpApache2.2.14410.276
vncVNC400.269
httpmini_httpd1.19 19dec2003370.249
httpBoa HTTPd0.94.14rc21350.236
httpApache2.2.22350.236
httpApache2.2.21300.202
httpWebCompanion httpd 6.0Jv1280.188
httpthttpd2.25b 29dec2003270.182
httpMicrosoft IIS httpd260.175
httpHikvision-Webs260.175
httpuc-httpd1.0.0240.162
ftpMicrosoft ftpd220.148
httpthttpd210.141
httpApache2.2.17210.141
httpWebCompanion httpd 5.5v3200.135
httpMbedthis-Appweb2.0.4200.135
httpApache2.2.16200.135
httpGadspot/Avtech AV787 webcam http config190.128
httpMicrosoft IIS httpd5.1170.114
httpCross Web Server170.114
httpApache2.2.9170.114
httpuTorrent WebUI160.108
httpWebCompanion httpd 5.5v4150.101
httpApache2.2.8150.101
httpApache2.0.53150.101
directconnectDirect Connect P2P150.101