Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 61896247 web servers by the ISPs' networks over which their traffic flows, the report provides a view of the top ISPs on the Internet.

ISP Domain Name	Dec 2011 Count*	Dec 2011 %	Nov 2011 Count*	Nov 2011 %	Growth %
theplanet.com	2,091,989	3.38	2,186,285	3.57	-5.30
schlund.de	1,844,756	2.98	1,831,686	2.99	-0.32
networklayer.com	1,777,014	2.87	1,828,270	2.98	-3.80
secureserver.net	1,662,560	2.69	1,644,840	2.68	0.04
y.dns.jp	1,505,300	2.43	1,522,363	2.49	-2.14
ovh.net	1,302,819	2.10	1,264,025	2.06	2.01
your-server.de	1,218,587	1.97	1,192,033	1.95	1.18
a.in-addr.cn	958,596	1.55	946,254	1.54	0.26
global-datacenter.com	848,945	1.37	828,679	1.35	1.39
rackspace.com	825,930	1.33	800,535	1.31	2.11
sakura.ad.jp	767,921	1.24	781,375	1.28	-2.73
lacnic.net	717,693	1.16	691,696	1.13	2.69
bluehost.com	690,480	1.12	669,308	1.09	2.10
softlayer.com	664,396	1.07	639,601	1.04	2.81
dreamhost.com	558,869	0.90	559,780	0.91	-1.19
yourhostingaccount.com	508,596	0.82	497,112	0.81	1.26
dns.kr	488,745	0.79	470,263	0.77	2.86
amazon.com	464,464	0.75	474,749	0.77	-3.17
peer1.net	452,744	0.73	425,897	0.70	5.21
a.dns.br	449,797	0.73	430,977	0.70	3.30
1and1.com	435,600	0.70	437,539	0.71	-1.47
twnic.net	421,152	0.68	433,560	0.71	-3.86
ntt.net	404,333	0.65	369,816	0.60	8.21
ns	392,968	0.63	382,084	0.62	1.79
leaseweb.nl	392,117	0.63	376,808	0.62	2.99
guangzhou.gd.cn	368,181	0.59	350,425	0.57	3.99
zjnbptt.net.cn	362,935	0.59	328,988	0.54	9.19
proxad.net	333,242	0.54	334,043	0.55	-1.26
hosteurope.de	330,870	0.53	322,553	0.53	1.53
pnap.net	329,462	0.53	354,031	0.58	-7.90
technorail.com	323,317	0.52	320,552	0.52	-0.17
interq.or.jp	315,521	0.51	327,943	0.54	-4.78
mediatemple.net	293,688	0.47	290,264	0.47	0.14
localhost	266,593	0.43	265,014	0.43	-0.44
b-one-dns.net	262,158	0.42	257,741	0.42	0.67
level3.net	255,837	0.41	239,567	0.39	5.69
singlehop.net	246,493	0.40	236,457	0.39	3.17
sta.net.cn	245,416	0.40	241,316	0.39	0.65
sourcedns.com	243,737	0.39	240,081	0.39	0.48
iweb-hosting.com	242,565	0.39	239,812	0.39	0.11
intergenia.de	238,593	0.39	240,646	0.39	-1.87
namespace4you.de	234,384	0.38	229,960	0.38	0.88
cogentco.com	226,312	0.37	259,151	0.42	-13.57
kasserver.com	214,558	0.35	210,639	0.34	0.81
dns.fz.fj.cn	209,347	0.34	211,966	0.35	-2.25
xlink.net	205,027	0.33	179,183	0.29	13.25
home.pl	204,527	0.33	199,929	0.33	1.25
nmc1.ptt.js.cn	192,549	0.31	197,636	0.32	-3.57
dimenoc.com	186,637	0.30	0	0.00	0.00
yandex.ru	180,629	0.29	176,212	0.29	1.45
geodns.net	177,049	0.29	190,558	0.31	-8.04
savvis.net	176,583	0.29	171,603	0.28	1.85
masterhost.ru	164,177	0.27	172,046	0.28	-5.55
servercentral.net	163,058	0.26	193,049	0.32	-16.40
slicehost.net	161,713	0.26	147,296	0.24	8.66
phatservers.com	159,804	0.26	136,467	0.22	15.90
gtei.net	159,022	0.26	153,427	0.25	2.58
cais.com	158,990	0.26	144,072	0.24	9.22
rz-ip.net	158,413	0.26	155,532	0.25	0.81
netart.pl	158,329	0.26	157,619	0.26	-0.58
mainnameserver.com	154,281	0.25	148,186	0.24	3.04
sparqnet.net	149,945	0.24	154,537	0.25	-3.97
msft.net	145,103	0.23	142,726	0.23	0.62
linode.com	144,394	0.23	135,089	0.22	5.79
lunarpages.com	142,227	0.23	141,605	0.23	-0.59
gldn.net	141,514	0.23	141,174	0.23	-0.79
he.net	139,392	0.23	123,346	0.20	11.85
burst.net	137,322	0.22	124,377	0.20	9.27
zzidc.com	135,379	0.22	129,152	0.21	3.75
dion.ne.jp	135,068	0.22	151,741	0.25	-11.90
secure.net	134,197	0.22	133,491	0.22	-0.50
gnax.net	133,510	0.22	126,222	0.21	4.69
fasthosts.net.uk	132,757	0.21	132,075	0.22	-0.52
pri-dns.de	129,176	0.21	144,631	0.24	-11.60
fhe3rz.net	123,648	0.20	107,841	0.18	13.48
jump.ro	122,619	0.20	126,239	0.21	-3.86
bta.net.cn	122,507	0.20	108,036	0.18	12.23
servint.com	122,329	0.20	118,669	0.19	2.03
pwebtech.com	122,003	0.20	122,027	0.20	-1.05
ocn.ad.jp	120,028	0.19	125,480	0.20	-5.33
carpathiahost.net	119,363	0.19	128,822	0.21	-8.29
ns01.idc.jp	118,382	0.19	117,962	0.19	-0.67
vpls.net	116,750	0.19	111,386	0.18	3.74
relax.ru	116,271	0.19	116,164	0.19	-0.94
trellian.com	115,334	0.19	120,789	0.20	-5.50
silkroadtechnologies.com	114,639	0.19	109,949	0.18	3.19
cncnet.net	111,844	0.18	96,684	0.16	14.49
locaweb.com.br	106,952	0.17	105,347	0.17	0.48
pair.com	106,423	0.17	106,446	0.17	-1.05
uu.net	106,224	0.17	111,385	0.18	-5.61
gblx.net	105,394	0.17	125,992	0.21	-17.21
net.ru	104,764	0.17	103,784	0.17	-0.09
iprevolution.co.jp	101,465	0.16	96,504	0.16	4.06
westmaster.com	101,436	0.16	108,478	0.18	-7.45
lnhi.net	99,314	0.16	99,829	0.16	-1.54
untd.com	98,411	0.16	96,021	0.16	1.44
google.com	96,460	0.16	94,489	0.15	1.04
tfn.net.tw	96,266	0.16	105,634	0.17	-9.80
nethost.cz	95,709	0.15	91,143	0.15	3.93
afrinic.net	94,830	0.15	92,752	0.15	1.19
rt-comm.ru	93,172	0.15	86,135	0.14	7.06
att.net	92,566	0.15	91,567	0.15	0.05
usen.ad.jp	92,551	0.15	133,448	0.22	-31.36
ripn.net	90,986	0.15	88,210	0.14	2.09
superhosting.cz	90,892	0.15	93,226	0.15	-3.50
flexwebhosting.nl	90,170	0.15	88,632	0.14	0.69
yahoo.com	90,112	0.15	70,348	0.11	26.78
kornet.net	88,077	0.14	79,313	0.13	9.91
confluence-networks.com	87,774	0.14	38,293	0.06	126.86
hinet.net	86,787	0.14	85,935	0.14	-0.05
ns1.xserver.jp	86,495	0.14	81,980	0.13	4.42
datadragon.net	86,204	0.14	106,448	0.17	-19.85
inetbone.net	85,704	0.14	87,399	0.14	-2.95
securedservers.com	85,291	0.14	58,525	0.10	44.24
layeredtech.com	84,614	0.14	81,438	0.13	2.83
sdjnptt.net.cn	83,392	0.13	77,350	0.13	6.70
uol.com.br	82,299	0.13	75,821	0.12	7.43
easpnet.com	81,961	0.13	88,307	0.14	-8.14
qwest.net	81,232	0.13	83,237	0.14	-3.41
xs4all.nl	81,194	0.13	80,706	0.13	-0.43
servidoresdns.net	80,957	0.13	80,624	0.13	-0.62
ucoz.net	79,685	0.13	77,064	0.13	2.34
hc.ru	79,495	0.13	71,153	0.12	10.58
dnspartner.de	79,214	0.13	78,954	0.13	-0.70
nocdirect.com	78,718	0.13	77,042	0.13	1.13
netdirekt.de	78,651	0.13	78,350	0.13	-0.65
meganameservers.com	77,609	0.13	77,514	0.13	-0.91
sphere.ad.jp	76,577	0.12	76,157	0.12	-0.48
kei.pl	76,571	0.12	75,506	0.12	0.37
rr.com	76,111	0.12	79,689	0.13	-5.47
interware.hu	74,429	0.12	80,625	0.13	-8.63
comcastbusiness.net	73,417	0.12	71,725	0.12	1.31
hbtele.com	72,876	0.12	90,153	0.15	-19.99
tele.dk	72,692	0.12	73,268	0.12	-1.80
t-online.hu	72,450	0.12	71,536	0.12	0.24
ch-meta.net	72,105	0.12	69,767	0.11	2.29
fastservers.net	71,127	0.11	81,207	0.13	-13.31
cysonet.com	69,704	0.11	67,765	0.11	1.81
tailormadeservers.com	68,361	0.11	29,637	0.05	128.29
dynamicweb.net	68,360	0.11	67,728	0.11	-0.10
inmotionhosting.com	68,306	0.11	65,560	0.11	3.12
cwie.net	67,799	0.11	56,241	0.09	19.31
colo4dallas.net	67,624	0.11	67,701	0.11	-1.14
main-hosting.com	67,605	0.11	70,629	0.12	-5.26
webcontrolcenter.com	67,167	0.11	67,143	0.11	-0.99
spaceweb.ru	66,210	0.11	65,146	0.11	0.59
rain.fr	65,796	0.11	69,048	0.11	-5.69
twtelecom.net	65,704	0.11	65,471	0.11	-0.67
intercom.com.cn	65,563	0.11	64,060	0.10	1.30
hbwhptt.net.cn	65,538	0.11	63,101	0.10	2.80
nic.ru	65,118	0.11	63,396	0.10	1.66
aspadmin.com	64,873	0.10	62,181	0.10	3.26
namedserver.net	64,784	0.10	63,182	0.10	1.48
sc163.net	64,741	0.10	72,177	0.12	-11.22
casablanca.cz	64,647	0.10	63,360	0.10	0.98
hichina.com	64,589	0.10	55,709	0.09	14.75
dtag.de	64,107	0.10	74,166	0.12	-14.45
forpsi.net	64,053	0.10	63,667	0.10	-0.43
wiredtree.com	64,023	0.10	63,751	0.10	-0.60
uk2.net	62,862	0.10	53,914	0.09	15.40
virtualxs.com	62,050	0.10	43,710	0.07	40.50
drcnet.com.cn	61,531	0.10	54,371	0.09	12.01
deninet.hu	61,114	0.10	61,454	0.10	-1.57
ctnt.com.cn	60,831	0.10	55,825	0.09	7.85
uhost.ro	60,155	0.10	49,886	0.08	19.35
servage.net	59,947	0.10	58,861	0.10	0.80
viawest.net	59,748	0.10	45,638	0.07	29.57
ee.net	59,306	0.10	58,233	0.10	0.80
server260.com	59,060	0.10	58,646	0.10	-0.33
gyron.net	58,005	0.09	58,924	0.10	-2.57
midphase.com	57,809	0.09	60,234	0.10	-5.01
drive.ne.jp	57,480	0.09	55,797	0.09	1.96
isprime.com	57,203	0.09	54,719	0.09	3.47
sivit.org	56,940	0.09	55,742	0.09	1.10
colt.net	56,809	0.09	57,154	0.09	-1.62
ns1	56,304	0.09	54,655	0.09	1.96
fdcservers.net	56,221	0.09	59,178	0.10	-5.97
marchex.com	56,069	0.09	55,953	0.09	-0.82
hananet.net	55,788	0.09	54,975	0.09	0.44
xl-internetservices.com	55,757	0.09	53,031	0.09	4.06
gzidc.com	54,535	0.09	51,551	0.08	4.70
ezzi.net	54,474	0.09	46,040	0.08	17.10
take2hosting.com	53,049	0.09	47,467	0.08	10.61
homestead.com	52,485	0.08	46,593	0.08	11.49
donhost.co.uk	52,090	0.08	52,210	0.09	-1.25
ahhfptt.net.cn	51,928	0.08	51,147	0.08	0.48
demandmedia.com	51,761	0.08	37,528	0.06	36.51
as29550.net	51,750	0.08	50,443	0.08	1.54
voodoo.com	51,725	0.08	47,183	0.08	8.50
singlehop.com	51,394	0.08	50,083	0.08	1.56
datanet.hu	51,116	0.08	50,280	0.08	0.62
nsserve.de	50,849	0.08	50,528	0.08	-0.40
dn-s.nl	50,582	0.08	44,534	0.07	12.41
seeweb.it	50,571	0.08	49,375	0.08	1.37
skyrock.net	50,385	0.08	59,895	0.10	-16.74
eukhost.com	50,183	0.08	50,114	0.08	-0.89
dnsmadeeasy.com	49,869	0.08	48,086	0.08	2.64
sprintlink.net	49,599	0.08	53,200	0.09	-7.73
edatahome.com	49,589	0.08	42,080	0.07	16.63
cattelecom.com	48,724	0.08	48,457	0.08	-0.48
inode.at	48,665	0.08	47,486	0.08	1.43
privatesystems.net	48,595	0.08	47,751	0.08	0.72
in2net.com	48,558	0.08	48,410	0.08	-0.72
netbenefit.co.uk	48,154	0.08	47,783	0.08	-0.26
lambdanet.net	48,013	0.08	46,987	0.08	1.13
rapidswitch.com	47,565	0.08	46,622	0.08	0.98
volia.com	47,212	0.08	45,815	0.07	1.99
hispalisdns.com	47,191	0.08	45,495	0.07	2.66
infomaniak.ch	46,995	0.08	46,533	0.08	-0.04
surf-town.net	46,927	0.08	46,242	0.08	0.44
myregisteredsite.com	46,862	0.08	44,020	0.07	5.36
keyweb.de	46,744	0.08	43,447	0.07	6.48
mastak.ru	46,730	0.08	46,142	0.08	0.23
steadfast.net	46,523	0.08	45,080	0.07	2.14
ns-px.online.sh.cn	46,113	0.07	37,723	0.06	20.99
hoster.ru	45,564	0.07	54,658	0.09	-17.49
kidc.net	45,408	0.07	47,501	0.08	-5.39
bt.net	45,187	0.07	44,806	0.07	-0.19
nwtgigalink.com	45,059	0.07	41,272	0.07	8.05
elinuxservers.com	45,048	0.07	44,840	0.07	-0.57
caravan.ru	44,719	0.07	39,127	0.06	13.12
hostpoint.ch	44,095	0.07	44,275	0.07	-1.43
hazzptt.net.cn	44,079	0.07	45,197	0.07	-3.48
pcextreme.nl	43,834	0.07	41,276	0.07	5.11
ispsystem.net	43,826	0.07	43,447	0.07	-0.16
transip.net	43,742	0.07	42,956	0.07	0.78
cpi.ad.jp	43,684	0.07	42,601	0.07	1.49
loopia.se	43,527	0.07	43,094	0.07	-0.03
hesjptt.net.cn	43,394	0.07	46,370	0.08	-7.38
telia.com	43,376	0.07	52,684	0.09	-18.51
sinnet.com.cn	43,355	0.07	41,326	0.07	3.83
interlink.or.jp	43,281	0.07	39,555	0.06	8.30
webnx.com	43,170	0.07	46,408	0.08	-7.93
tpnet.pl	42,765	0.07	41,422	0.07	2.18
dinahosting.com	42,463	0.07	41,042	0.07	2.40
dialtelecom.cz	42,098	0.07	41,357	0.07	0.75
iomart.com	41,893	0.07	41,532	0.07	-0.17
servepath.com	41,759	0.07	40,073	0.07	3.14
usiphosting.com	41,724	0.07	48,827	0.08	-15.42
live-servers.net	41,684	0.07	41,442	0.07	-0.45
udagdns.net	41,567	0.07	39,995	0.07	2.86
webazilla.com	41,480	0.07	41,434	0.07	-0.92
interia.pl	41,409	0.07	36,897	0.06	11.08
qweb.nl	41,360	0.07	44,742	0.07	-8.51
bhpr.net	41,257	0.07	31,190	0.05	30.92
advancedhosters.com	40,808	0.07	48,921	0.08	-17.44
atw.hu	40,777	0.07	40,159	0.07	0.50
bezeqint.net	40,763	0.07	34,666	0.06	16.38
sv.madame.jp	40,652	0.07	39,107	0.06	2.88
servernap.com	40,623	0.07	39,877	0.07	0.82

* An ISP is said to host a server if its name servers have control over the block of IP addresses that the server is in. Since a large ISP might delegate subnets to a smaller one, a single web server may be counted several times towards an ISP and its upstream providers.

Beginning with the February 2006 data set on which the March 1st, 2006 reports are based, a new algorithm was implemented for determining which webservers are assigned to which ISP. This new algorithm catches a significant number of servers which previously were unable to be assigned to an ISP.