Overview of services running on Port 84 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	Count	Percent
http		24226	24.598
http	Apache	8676	8.809
http	Microsoft IIS httpd	7437	7.551
http	Netwave webcam http config	4573	4.643
http	SonicWALL	4036	4.098
http	thttpd	3584	3.639
http	Netwave IP camera http config	3373	3.425
chat	AIM or ICQ server	2406	2.443
http	Boa HTTPd	2344	2.38
http	lighttpd	2280	2.315
no match	-/-	2162	2.195
http	GoAhead-Webs httpd	1902	1.931
http	Hikvision-Webs	1498	1.521
http	Cdn Cache Server V2.0	1402	1.424
http	Boa httpd	1339	1.36
http	mini_httpd	1194	1.212
http	Avtech AVN801 network camera	1037	1.053
http	GeoVision GeoHttpServer for webcams	1029	1.045
http	uc-httpd	974	0.989
http	dcs-lig-httpd	870	0.883
http	nginx	798	0.81
http	Cisco IOS http config	795	0.807
http	AIM	723	0.734
http	Microsoft HTTPAPI httpd	688	0.699
http	D-Link/Airlink IP webcam http config	644	0.654
http	Apache Tomcat/Coyote JSP engine	585	0.594
http	Cross Web Server	513	0.521
http	TRENDnet TV-IP100 or TV-IP110 webcam display httpd	468	0.475
http	GoAhead-Webs embedded httpd	446	0.453
http	Airlink 101 or TRENDnet TVIP-422w webcam http config	445	0.452
http	BusyBox httpd	417	0.423
http	Linux	399	0.405
ssh	OpenSSH	388	0.394
http	Mbedthis-Appweb	375	0.381
http	WindWeb	307	0.312
http	D-Link DIR-300 WAP http admin	298	0.303
http	WebServer(IPCamera_Logo)	288	0.292
http	OpenSource C	272	0.276
http-proxy	Squid http proxy	257	0.261
http	Allegro RomPager	230	0.234
http	DVR Systems webcam http interface	228	0.232
http	TRENDnet TV-IP110w or TV-IP422W webcam display httpd	209	0.212
http	D-Link DCS-900 webcam http config	191	0.194
http	WYM httpd	190	0.193
rtsp		186	0.189
http	D-Link Internet Camera	184	0.187
http	Gadspot/Avtech AV787 webcam http config	173	0.176
http	Webs	161	0.163
http	D-Link DCS-920 webcam http config	157	0.159
http	Boa	157	0.159
http	TwistedWeb httpd	155	0.157
http	Mobotix Camera http config	152	0.154
http	ImagiaTek	152	0.154
http	sbcache	144	0.146
http	IQinVision Embedded 1.0	144	0.146
http	D-Link DCS-910 webcam http config	143	0.145
http	Vivotek Network Camera	142	0.144
http	DrcomServer1.0	135	0.137
http	SideBit.Net	131	0.133
arcserve	ARCserve Discovery	130	0.132
http	Panasonic BB-HCM331 Network Camera http config	127	0.129
http	FC	125	0.127
http	RapidLogic httpd	119	0.121
http	Jetty	114	0.116
http	Indy	114	0.116
http	DD-WRT milli_httpd	114	0.116
http	WEB SERVER	112	0.114
http	Ubicom	112	0.114
http	avtech	107	0.109
ssh		106	0.108
http	Stanley NT500 access control system httpd	106	0.108
http	GoAhead-Webs	104	0.106
http	Aperio Digital Slide Conferencing httpd	103	0.105
http	uTorrent utserver web interface	100	0.102
http	avtech httpd	100	0.102
http	D-Link MiniAVServer	97	0.098
http	ver2.4 rev0	93	0.094
http	PDR-M800	93	0.094
http	Linksys SPA942 VoIP phone http config	90	0.091
http	GS-Webs	90	0.091
http	Network Camera	89	0.09
http	HomeSeer Home Control Web Interface	88	0.089
vnc	VNC	82	0.083
http	HTTPsrv	82	0.083
http	MikroTik router config httpd	79	0.08
http	D-Link DCS-3220 webcam http config	79	0.08
http	David WebBox httpd	78	0.079
http	MikroTik router http config	77	0.078
http	Microsoft-HTTPAPI	75	0.076
rtsp	Avtech MPEG4 DVR control rtspd	73	0.074
http	httpd	71	0.072
http	Tridium Niagara httpd	70	0.071
http	D-Link printer/webcam http config	67	0.068
http	webserver	65	0.066
http	DrayTek Vigor 2800-series ADSL router httpd	64	0.065
http	Vivotek 3102 Camera http config	62	0.063
http	alphapd	62	0.063
http	Gnway Web Server	59	0.06
http	ADAM-6000	59	0.06
http	Lotus Domino httpd	58	0.059
http	http server 1.0	58	0.059
telnet		57	0.058
http	wg_httpd	57	0.058
http	WebLogic httpd	57	0.058
http	vid	57	0.058
http	W3MFC	55	0.056
http	Microsoft IIS	55	0.056
http	Dreambox httpd	55	0.056
http	Wireless Network Camera	54	0.055
http	D-Link web camera http config	54	0.055
ftp	Microsoft ftpd	54	0.055
remoting	MS .NET Remoting services	50	0.051
http	Linksys PAP2 VoIP http config	49	0.05
http	FlashCom	48	0.049
http	SNF	45	0.046
http	Snom 300 VoIP phone http config	44	0.045
http	Router	43	0.044
http	IPCamera-Webs	42	0.043
http	Generic router http config	42	0.043
http	httpd 1.1	41	0.042
http	Techno Vision Security System http config	40	0.041
http	SonicWALL firewall http config	40	0.041
http	Network Dome Camera	40	0.041
http	MS-SDK-HttpServer	40	0.041
http	IBM HTTP Server	40	0.041
http	go1984	39	0.04
http	ChipPC Extreme httpd	39	0.04
http	Httpd	38	0.039
http	CherryPy httpd	37	0.038
mysql	MySQL	36	0.037
http	U S Software Web Server	36	0.037
http	IQhttpD	36	0.037
http	Caucho Resin JSP engine	36	0.037
http	HeiTel GmbH Web Server	35	0.036
ftp		35	0.036
ssh	Dropbear sshd	34	0.035
http	uTorrent WebUI	34	0.035
http	WebServer	33	0.034
http	OwnServer1.0	33	0.034
http	Micro-Dev Software HTTP Server	33	0.034
http	WebFS httpd	31	0.031
http	dvr1614n web-cam httpd	31	0.031
http	Virata-EmWeb	30	0.03
http	TibetSystem Server 2.0	30	0.03
http	D-Link DCS-6620 webcam http config	30	0.03
ftp	FileZilla ftpd	30	0.03
http	ics-cache	29	0.029
http	D-Link DCS-6620G webcam http config	27	0.027
http	build-in http server	27	0.027
http	u-Server	26	0.026
http	Speedr	26	0.026
http	Oracle Application Server 10g httpd	26	0.026
http	BlueIris-HTTP	26	0.026
ftp	ProFTPD	26	0.026
soap	gSOAP soap	25	0.025
http	ViewSonic PJD6521 projector http config	25	0.025
http	TeamViewer httpd	25	0.025
spy-net	Spy-Net or CyberGate backdoor	24	0.024
http	VB	24	0.024
http	TP-LINK Router	24	0.024
http	MiniServ	24	0.024
http	HttpFileServer httpd	24	0.024
http	Kerio MailServer http config	23	0.023
http	Dreambox DVB Enigma httpd	23	0.023
http	Sipura SPA VoIP http config	22	0.022
http	NETWORK	22	0.022
http	iTools-Admin-Server	22	0.022
http	iRMC S2 Webserver	22	0.022
ssl	TLS	21	0.021
irc	Unreal ircd	21	0.021
http	IQ3	20	0.02
http	HTTPServer	20	0.02
http	Web-Based Enterprise Management CIM serverOpenPegasus WBEM httpd	19	0.019
http	Sun Niagara httpd	19	0.019
http	NetPort httpd	19	0.019
http	D-Link DCS-3220G webcam http config	19	0.019
http	Allegro-Software-RomPager	19	0.019
ftp	vsftpd (before 2.0.8) or WU-FTPD	19	0.019
http	Vivotek Video Server	18	0.018
http	SEEnergy SVR-116	18	0.018
http-proxy	MikroTik http proxy	18	0.018
http	nginx/C	18	0.018
http	gen5th	18	0.018
telnet	Allied Telesis x900-series switch telnetd	17	0.017
smtp	Microsoft ESMTP	17	0.017
http	VigorAccess Web Server	17	0.017
http	RapidLogic	17	0.017
http	iDVRhttpSvr	17	0.017
http	AXIS 205 network camera web interface	17	0.017
ftp	vsftpd	17	0.017
vnc		16	0.016
http	Zope httpd	16	0.016
http	Video server	16	0.016
http	Siemens Gigaset PBX/TARGA DIP VoIP phone http config	16	0.016
http	Serverdoc remote httpd	16	0.016
http	RemotelyAnywhere remote PC management httpd	16	0.016
http-proxy	F5 BIG-IP load balancer http proxy	16	0.016
http	Fnord httpd	16	0.016
http	Draytek Vigor ADSL router webadmin	16	0.016
ftp	Serv-U ftpd	16	0.016
http	Microsoft Windows Media Server	15	0.015
http	go1984 httpd	15	0.015
http	Debut embedded httpd	15	0.015
http	ADH-Web	15	0.015
vnc	RealVNC Personal	14	0.014
shoutcast	SHOUTcast server	14	0.014
http	Z-World Rabbit	14	0.014
http	Zimbra http config	14	0.014
http	webcamXP httpd	14	0.014
http	Velazquez 6.2	14	0.014
http	http server	14	0.014
http	HTTPD	14	0.014
http	ESET NOD32 anti-virus update httpd	14	0.014
telnet	Pocket CMD telnetd	13	0.013
smtp	Microsoft Exchange smtpd	13	0.013
http	Sun ONE Web Server	13	0.013
http-proxy	Microsoft Foundation Class httpd	13	0.013
http	KFWebServer	13	0.013
http	HP StorageWorks AG118A tape autoloader http config	13	0.013
http	D-Link DCS-3420 webcam http config	13	0.013
http	CCProxy	13	0.013
http	CCcam card sharing system http config	13	0.013
http	World Client WDaemon httpd	12	0.012
http	Siemens Gigaset A580 or S450 VoIP phone http config	12	0.012
http-proxy	CCProxy http proxy	12	0.012
http	NetBox httpd	12	0.012
http	NetApp DFM httpd	12	0.012
http	MayGion WebServer(www.maygion.com)	12	0.012
http	Mathopd httpd	12	0.012
http	Grandstream HT502 VoIP router http config	12	0.012
http	DECORUM	12	0.012
http	AIM HTTP	12	0.012
ftp	Pure-FTPd	12	0.012
http	Varnish	11	0.011
http	TP-LINK WR740N WAP http config	11	0.011
http	Satel ETHM-1 alarm control unit	11	0.011
http	Router Web Config System	11	0.011
http	QNAP TS-219P NAS http config	11	0.011
http	PunkBuster http config	11	0.011
http	Mongoose httpd	11	0.011
http	Miktotik Dude network monitor	11	0.011
http	Kerio MailServer Webmail	11	0.011
http	IPC	11	0.011
http	Embedded HTTP Server	11	0.011
http	D-Link DCS-2121 webcam http config	11	0.011
http	David-WebBox	11	0.011
http	Cisco SPA502G VoIP phone http config	11	0.011
http	Bosch Divar Security Systems http config	11	0.011
http	Barix Instreamer audio encoder http config	11	0.011
http	Alpha Five Application Server	11	0.011
geovision-audio	Geovision webcam audio	11	0.011
smtp		10	0.01
http	Web Switch	10	0.01
http	VPON Server	10	0.01
http	UltiDev Cassini httpd	10	0.01
http	Switch	10	0.01
http	Small Home Server httpd	10	0.01
http	Polycom SoundPoint VoIP phone http config	10	0.01
http	Panasonic DVR slinger http config	10	0.01
http	NetTalk-WebServer	10	0.01
http	MWS	10	0.01
http	Microsiga httpd	10	0.01
http	HTTPD 1.0	10	0.01
http	Crestron MPS-200 AV routing system http config	10	0.01
http	Cisco SPA504G VoIP phone http config	10	0.01
http	AVR_Small_Webserver	10	0.01
http	antid	10	0.01