Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 60783630 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	Sep 2011 Count*	Sep 2011 %	Aug 2011 Count*	Aug 2011 %	Growth %
theplanet.com	2,248,099	3.70	2,284,981	3.79	-2.48
networklayer.com	1,885,733	3.10	0	0.00	0.00
schlund.de	1,805,449	2.97	1,791,785	2.97	-0.13
secureserver.net	1,598,860	2.63	1,571,250	2.61	0.86
y.dns.jp	1,513,457	2.49	1,530,876	2.54	-2.01
ovh.net	1,301,491	2.14	1,282,795	2.13	0.56
global-datacenter.com	1,230,729	2.02	1,291,463	2.14	-5.55
your-server.de	1,115,955	1.84	1,100,229	1.83	0.53
a.in-addr.cn	896,545	1.47	899,317	1.49	-1.19
sakura.ad.jp	783,163	1.29	838,255	1.39	-7.40
rackspace.com	770,077	1.27	752,639	1.25	1.41
lacnic.net	710,154	1.17	699,164	1.16	0.67
bluehost.com	650,438	1.07	634,293	1.05	1.64
softlayer.com	566,950	0.93	699,596	1.16	-19.68
dreamhost.com	554,014	0.91	547,081	0.91	0.37
yourhostingaccount.com	487,103	0.80	492,429	0.82	-1.96
dns.kr	466,996	0.77	476,722	0.79	-2.91
a.dns.br	448,026	0.74	442,350	0.73	0.39
peer1.net	447,062	0.74	418,497	0.69	5.88
amazon.com	440,854	0.73	409,894	0.68	6.60
1and1.com	432,644	0.71	430,512	0.71	-0.39
twnic.net	432,565	0.71	421,584	0.70	1.70
ntt.net	377,937	0.62	368,340	0.61	1.70
leaseweb.nl	373,223	0.61	380,897	0.63	-2.88
ns	372,570	0.61	352,085	0.58	4.88
guangzhou.gd.cn	346,940	0.57	341,681	0.57	0.64
zjnbptt.net.cn	337,523	0.56	331,194	0.55	1.01
proxad.net	326,544	0.54	330,144	0.55	-1.97
technorail.com	322,978	0.53	319,381	0.53	0.23
hosteurope.de	317,280	0.52	314,326	0.52	0.05
interq.or.jp	311,870	0.51	349,501	0.58	-11.56
pnap.net	304,146	0.50	317,245	0.53	-4.98
mediatemple.net	285,261	0.47	279,364	0.46	1.21
localhost	257,399	0.42	264,086	0.44	-3.39
b-one-dns.net	251,469	0.41	248,597	0.41	0.26
sourcedns.com	246,344	0.41	236,855	0.39	3.09
xlink.net	240,728	0.40	215,327	0.36	10.81
sta.net.cn	240,654	0.40	265,044	0.44	-10.01
level3.net	237,990	0.39	216,486	0.36	8.96
namespace4you.de	231,667	0.38	229,020	0.38	0.26
iweb-hosting.com	231,258	0.38	231,198	0.38	-0.86
intergenia.de	226,359	0.37	224,224	0.37	0.06
singlehop.net	222,734	0.37	208,208	0.35	6.03
cogentco.com	221,705	0.36	232,976	0.39	-5.68
dns.fz.fj.cn	214,047	0.35	211,927	0.35	0.11
kasserver.com	205,583	0.34	201,829	0.34	0.96
home.pl	196,720	0.32	204,071	0.34	-4.45
nmc1.ptt.js.cn	188,711	0.31	190,657	0.32	-1.90
geodns.net	183,558	0.30	172,723	0.29	5.33
yandex.ru	180,327	0.30	174,143	0.29	2.64
savvis.net	176,866	0.29	174,436	0.29	0.50
phatservers.com	175,261	0.29	138,021	0.23	25.86
masterhost.ru	169,546	0.28	168,481	0.28	-0.26
netart.pl	166,697	0.27	166,123	0.28	-0.54
gtei.net	156,741	0.26	133,264	0.22	16.58
sparqnet.net	155,084	0.26	144,908	0.24	6.08
rz-ip.net	155,053	0.26	151,966	0.25	1.13
servercentral.net	149,406	0.25	149,914	0.25	-1.22
dimenoc.com	144,296	0.24	142,819	0.24	0.14
fasthosts.net.uk	142,928	0.24	142,943	0.24	-0.89
mainnameserver.com	142,887	0.24	140,076	0.23	1.10
pri-dns.de	141,617	0.23	150,713	0.25	-6.87
lunarpages.com	140,704	0.23	139,829	0.23	-0.26
dion.ne.jp	138,550	0.23	132,754	0.22	3.44
cais.com	137,418	0.23	123,526	0.21	10.26
gldn.net	136,724	0.22	135,998	0.23	-0.36
secure.net	136,075	0.22	136,653	0.23	-1.30
jump.ro	135,709	0.22	120,347	0.20	11.77
fhe3rz.net	133,504	0.22	102,790	0.17	28.73
slicehost.net	132,066	0.22	126,619	0.21	3.38
burst.net	132,007	0.22	127,718	0.21	2.44
msft.net	131,859	0.22	124,700	0.21	4.81
carpathiahost.net	130,924	0.22	121,326	0.20	6.96
gnax.net	128,065	0.21	132,680	0.22	-4.33
pwebtech.com	124,152	0.20	119,801	0.20	2.72
ocn.ad.jp	121,845	0.20	116,762	0.19	3.43
he.net	119,202	0.20	123,000	0.20	-3.94
linode.com	115,109	0.19	112,702	0.19	1.23
servint.com	114,306	0.19	120,886	0.20	-6.28
relax.ru	111,869	0.18	111,299	0.18	-0.38
uu.net	111,132	0.18	113,739	0.19	-3.16
gblx.net	110,679	0.18	95,753	0.16	14.57
ns01.idc.jp	110,389	0.18	111,667	0.19	-2.02
silkroadtechnologies.com	107,936	0.18	105,371	0.17	1.53
trellian.com	107,878	0.18	85,986	0.14	24.35
pair.com	106,656	0.18	105,678	0.18	0.03
usen.ad.jp	106,510	0.18	86,070	0.14	22.65
iprevolution.co.jp	104,381	0.17	101,184	0.17	2.25
untd.com	103,414	0.17	101,430	0.17	1.05
amerinoc.com	102,173	0.17	118,003	0.20	-14.18
superhosting.cz	101,965	0.17	91,220	0.15	10.79
cncnet.net	101,108	0.17	100,730	0.17	-0.51
lnhi.net	100,818	0.17	100,290	0.17	-0.36
net.ru	100,335	0.17	98,282	0.16	1.19
locaweb.com.br	100,065	0.16	99,507	0.17	-0.33
tfn.net.tw	99,400	0.16	88,192	0.15	11.71
hbtele.com	98,526	0.16	74,996	0.12	30.21
easpnet.com	97,607	0.16	96,733	0.16	0.01
att.net	96,765	0.16	94,458	0.16	1.54
vpls.net	96,608	0.16	88,923	0.15	7.68
bta.net.cn	94,619	0.16	131,787	0.22	-28.84
westmaster.com	91,475	0.15	97,055	0.16	-6.58
afrinic.net	91,282	0.15	89,927	0.15	0.61
qwest.net	90,668	0.15	92,094	0.15	-2.42
uol.com.br	90,535	0.15	87,083	0.14	3.04
rt-comm.ru	87,267	0.14	84,545	0.14	2.31
kornet.net	86,998	0.14	86,228	0.14	0.00
datadragon.net	86,395	0.14	81,544	0.14	5.01
inetbone.net	85,158	0.14	86,259	0.14	-2.15
yahoo.com	84,650	0.14	97,901	0.16	-14.30
hinet.net	84,628	0.14	83,771	0.14	0.13
flexwebhosting.nl	84,344	0.14	91,773	0.15	-8.91
nethost.cz	84,210	0.14	80,815	0.13	3.28
aspadmin.com	82,970	0.14	78,699	0.13	4.49
ripn.net	82,097	0.14	90,376	0.15	-9.96
layeredtech.com	81,340	0.13	78,420	0.13	2.81
rr.com	81,335	0.13	79,917	0.13	0.87
servidoresdns.net	80,452	0.13	80,065	0.13	-0.41
hc.ru	80,219	0.13	77,797	0.13	2.20
interware.hu	79,639	0.13	72,667	0.12	8.63
netdirekt.de	78,746	0.13	79,404	0.13	-1.71
sphere.ad.jp	78,725	0.13	78,265	0.13	-0.30
xs4all.nl	78,431	0.13	78,262	0.13	-0.67
dnspartner.de	78,378	0.13	77,981	0.13	-0.38
meganameservers.com	77,023	0.13	76,806	0.13	-0.60
ns1.xserver.jp	75,744	0.12	72,345	0.12	3.77
kei.pl	74,761	0.12	74,498	0.12	-0.53
fastservers.net	73,987	0.12	71,639	0.12	2.36
tele.dk	73,900	0.12	74,747	0.12	-2.01
ucoz.net	73,107	0.12	70,770	0.12	2.39
websitewelcome.com	72,731	0.12	35,103	0.06	105.36
t-online.hu	71,325	0.12	70,605	0.12	0.13
hananet.net	69,843	0.11	64,871	0.11	6.71
nocdirect.com	69,591	0.11	70,205	0.12	-1.75
comcastbusiness.net	69,350	0.11	66,766	0.11	2.95
dtag.de	68,168	0.11	64,258	0.11	5.15
twtelecom.net	67,958	0.11	68,331	0.11	-1.43
sc163.net	67,469	0.11	60,444	0.10	10.64
colo4dallas.net	67,318	0.11	67,370	0.11	-0.96
ch-meta.net	67,268	0.11	66,430	0.11	0.37
webcontrolcenter.com	67,240	0.11	67,626	0.11	-1.45
dynamicweb.net	66,914	0.11	66,546	0.11	-0.34
main-hosting.com	65,426	0.11	63,590	0.11	1.98
cysonet.com	65,264	0.11	63,850	0.11	1.31
namedserver.net	65,219	0.11	64,513	0.11	0.20
sdjnptt.net.cn	64,738	0.11	81,828	0.14	-21.58
deninet.hu	64,656	0.11	63,278	0.11	1.27
fdcservers.net	64,036	0.11	61,907	0.10	2.52
rain.fr	63,992	0.11	58,147	0.10	9.08
spaceweb.ru	63,866	0.11	63,014	0.10	0.46
inmotionhosting.com	63,442	0.10	61,228	0.10	2.70
forpsi.net	62,829	0.10	61,888	0.10	0.62
casablanca.cz	62,337	0.10	61,368	0.10	0.68
google.com	61,112	0.10	72,250	0.12	-16.16
intercom.com.cn	60,911	0.10	70,467	0.12	-14.33
uk2.net	60,745	0.10	60,596	0.10	-0.64
wiredtree.com	59,841	0.10	59,121	0.10	0.32
hbwhptt.net.cn	58,863	0.10	61,311	0.10	-4.84
servage.net	58,769	0.10	58,986	0.10	-1.25
midphase.com	58,311	0.10	46,821	0.08	23.44
server260.com	58,107	0.10	57,916	0.10	-0.56
take2hosting.com	57,860	0.10	57,228	0.09	0.21
ctnt.com.cn	57,707	0.09	51,352	0.09	11.38
gyron.net	56,883	0.09	56,052	0.09	0.59
xo.com	56,134	0.09	73,224	0.12	-24.02
colt.net	56,130	0.09	55,833	0.09	-0.36
inode.at	55,701	0.09	55,920	0.09	-1.27
marchex.com	55,486	0.09	55,904	0.09	-1.63
drcnet.com.cn	54,691	0.09	52,676	0.09	2.91
ee.net	54,515	0.09	62,204	0.10	-13.14
isprime.com	53,923	0.09	52,181	0.09	2.42
sivit.org	53,544	0.09	52,825	0.09	0.46
sprintlink.net	53,257	0.09	51,529	0.09	2.44
drive.ne.jp	52,702	0.09	47,783	0.08	9.32
bezeqint.net	52,440	0.09	50,930	0.08	2.05
donhost.co.uk	52,291	0.09	52,335	0.09	-0.97
as29550.net	51,113	0.08	50,177	0.08	0.96
nic.ru	50,630	0.08	58,465	0.10	-14.17
gzidc.com	50,034	0.08	49,676	0.08	-0.17
myregisteredsite.com	49,602	0.08	47,597	0.08	3.29
dn-s.nl	49,507	0.08	46,801	0.08	4.85
ns1	49,470	0.08	49,595	0.08	-1.13
eukhost.com	49,081	0.08	49,159	0.08	-1.04
tpt.net.cn	49,025	0.08	42,564	0.07	14.16
in2net.com	48,930	0.08	48,879	0.08	-0.78
homestead.com	48,762	0.08	42,669	0.07	13.27
hoster.ru	48,435	0.08	41,782	0.07	14.90
datanet.hu	48,294	0.08	45,403	0.08	5.43
seeweb.it	48,187	0.08	46,649	0.08	2.38
advancedhosters.com	48,132	0.08	40,463	0.07	17.90
singlehop.com	47,866	0.08	48,381	0.08	-1.94
viawest.net	47,830	0.08	52,471	0.09	-9.65
webnx.com	47,763	0.08	45,340	0.08	4.41
zzidc.com	47,220	0.08	40,499	0.07	15.56
netbenefit.co.uk	47,204	0.08	45,985	0.08	1.74
datapipe.net	47,104	0.08	47,472	0.08	-1.65
cattelecom.com	47,045	0.08	46,644	0.08	-0.03
hesjptt.net.cn	47,040	0.08	46,894	0.08	-0.58
ahhfptt.net.cn	46,914	0.08	47,398	0.08	-1.90
rapidswitch.com	46,748	0.08	46,733	0.08	-0.85
demandmedia.com	46,182	0.08	45,473	0.08	0.66
surf-town.net	46,104	0.08	45,260	0.08	0.96
register.it	45,695	0.08	39,723	0.07	14.02
infomaniak.ch	45,625	0.08	45,079	0.07	0.32
mastak.ru	45,253	0.07	44,681	0.07	0.38
kidc.net	45,145	0.07	45,838	0.08	-2.38
bt.net	44,694	0.07	44,298	0.07	0.00
elinuxservers.com	44,407	0.07	54,473	0.09	-19.20
keyweb.de	43,987	0.07	41,365	0.07	5.40
pcextreme.nl	43,879	0.07	54,753	0.09	-20.57
hazzptt.net.cn	43,803	0.07	48,299	0.08	-10.11
conepuppy.com	43,768	0.07	43,348	0.07	0.08
usiphosting.com	43,377	0.07	40,318	0.07	6.64
antagus.de	43,121	0.07	42,491	0.07	0.59
loopia.se	42,862	0.07	42,266	0.07	0.51
hostpoint.ch	42,797	0.07	42,726	0.07	-0.72
tpnet.pl	42,709	0.07	42,704	0.07	-0.87
softonic.com	42,549	0.07	38,648	0.06	9.12
tucows.com	42,461	0.07	41,398	0.07	1.66
qweb.nl	42,086	0.07	59,188	0.10	-29.52
ezzi.net	42,027	0.07	59,714	0.10	-30.24
steadfast.net	41,919	0.07	39,774	0.07	4.46
transip.net	41,828	0.07	40,469	0.07	2.44
hichina.com	41,586	0.07	35,973	0.06	14.58
proserve.nl	41,410	0.07	43,401	0.07	-5.43
lambdanet.net	41,395	0.07	38,365	0.06	6.94
caravan.ru	41,381	0.07	34,622	0.06	18.47
hostmar.com	41,348	0.07	35,747	0.06	14.65
virtualxs.com	41,319	0.07	58,117	0.10	-29.53
hispalisdns.com	41,105	0.07	39,148	0.06	4.07
iomart.com	41,078	0.07	40,865	0.07	-0.37
webazilla.com	41,051	0.07	40,231	0.07	1.14
cpi.ad.jp	40,902	0.07	39,889	0.07	1.63
live-servers.net	40,825	0.07	40,685	0.07	-0.54
bell.ca	40,738	0.07	40,641	0.07	-0.65
ispsystem.net	40,640	0.07	38,866	0.06	3.64
cnc-gd.net	40,440	0.07	34,845	0.06	15.03
volia.com	40,292	0.07	28,780	0.05	38.76
privatesystems.net	40,084	0.07	38,271	0.06	3.81
myhostcenter.com	39,883	0.07	40,155	0.07	-1.56
integraonline.com	39,803	0.07	41,371	0.07	-4.64
sinnet.com.cn	39,655	0.07	38,832	0.06	1.22
dinahosting.com	39,639	0.07	38,058	0.06	3.23
telia.com	39,274	0.06	46,543	0.08	-16.36
limestonenetworks.com	39,208	0.06	38,757	0.06	0.27
codero.com	39,126	0.06	29,930	0.05	29.57
servernap.com	38,943	0.06	38,236	0.06	0.95
nwtgigalink.com	38,930	0.06	36,392	0.06	6.03
hospedagem.net	38,865	0.06	36,925	0.06	4.32
servepath.com	38,763	0.06	37,897	0.06	1.38

* 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.