Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 39163119 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	Apr 2009 Count*	Apr 2009 %	Mar 2009 Count*	Mar 2009 %	Growth %
theplanet.com	1,392,405	3.56	1,413,543	3.54	0.48
schlund.de	1,351,701	3.45	1,344,627	3.37	2.55
y.dns.jp	1,080,690	2.76	1,107,802	2.77	-0.49
secureserver.net	821,098	2.10	819,743	2.05	2.18
sakura.ad.jp	569,379	1.45	617,260	1.55	-5.90
ovh.net	537,698	1.37	534,540	1.34	2.61
a.in-addr.cn	529,256	1.35	527,190	1.32	2.41
softlayer.com	518,853	1.32	517,990	1.30	2.18
lacnic.net	446,664	1.14	466,406	1.17	-2.31
rackspace.com	432,000	1.10	432,093	1.08	1.99
ev1servers.net	429,184	1.10	443,781	1.11	-1.34
your-server.de	407,830	1.04	436,933	1.09	-4.78
fc2.com	387,907	0.99	388,567	0.97	1.84
ntt.net	348,605	0.89	350,779	0.88	1.38
dreamhost.com	336,626	0.86	346,705	0.87	-0.96
dns.kr	312,096	0.80	315,795	0.79	0.82
yourhostingaccount.com	290,691	0.74	288,669	0.72	2.72
peer1.net	282,142	0.72	301,682	0.76	-4.60
a.dns.br	279,840	0.71	296,761	0.74	-3.81
bluehost.com	276,997	0.71	277,145	0.69	1.96
guangzhou.gd.cn	256,496	0.65	261,770	0.66	-0.04
cogentco.com	255,092	0.65	273,974	0.69	-5.02
proxad.net	239,285	0.61	237,521	0.59	2.77
technorail.com	230,854	0.59	233,401	0.58	0.90
leaseweb.nl	202,644	0.52	211,004	0.53	-2.03
zjnbptt.net.cn	183,424	0.47	209,772	0.53	-10.80
gnax.net	176,644	0.45	177,199	0.44	1.69
pnap.net	162,850	0.42	176,557	0.44	-5.91
twnic.net	161,802	0.41	164,126	0.41	0.57
localhost	161,074	0.41	165,566	0.41	-0.76
hosteurope.de	155,516	0.40	151,856	0.38	4.47
nmc1.ptt.js.cn	154,054	0.39	168,020	0.42	-6.47
sourcedns.com	149,501	0.38	154,302	0.39	-1.16
uu.net	146,546	0.37	148,811	0.37	0.46
sta.net.cn	145,343	0.37	146,337	0.37	1.32
namespace4you.de	143,107	0.37	142,493	0.36	2.45
usen.ad.jp	139,086	0.36	140,385	0.35	1.07
mediatemple.net	138,119	0.35	137,696	0.34	2.32
pri-dns.de	135,480	0.35	128,353	0.32	7.67
rz-ip.net	134,854	0.34	138,232	0.35	-0.48
fasthosts.net.uk	133,506	0.34	134,578	0.34	1.20
savvis.net	132,903	0.34	133,901	0.34	1.25
att.net	130,002	0.33	131,982	0.33	0.48
yandex.ru	128,629	0.33	128,452	0.32	2.15
iweb-hosting.com	126,951	0.32	126,419	0.32	2.44
fhe3rz.net	126,832	0.32	114,750	0.29	12.75
interq.or.jp	124,532	0.32	135,584	0.34	-6.30
masterhost.ru	123,887	0.32	126,374	0.32	0.00
geodns.net	123,237	0.31	120,977	0.30	3.92
b-one-dns.net	122,829	0.31	122,552	0.31	2.24
kasserver.com	120,265	0.31	122,324	0.31	0.29
intergenia.de	120,084	0.31	111,319	0.28	10.04
secure.net	119,473	0.31	121,229	0.30	0.53
cncnet.net	119,283	0.30	144,643	0.36	-15.87
level3.net	112,211	0.29	119,209	0.30	-3.98
bluegravity.com	111,956	0.29	132,566	0.33	-13.85
xlink.net	111,152	0.28	102,920	0.26	10.17
dns.fz.fj.cn	109,047	0.28	104,501	0.26	6.45
lunarpages.com	108,549	0.28	108,306	0.27	2.24
layeredtech.com	101,009	0.26	124,150	0.31	-17.00
abac.com	100,323	0.26	100,116	0.25	2.22
cais.com	100,001	0.26	116,066	0.29	-12.11
pair.com	96,360	0.25	97,207	0.24	1.12
ns	96,232	0.25	95,800	0.24	2.47
qwest.net	94,783	0.24	99,693	0.25	-3.01
dion.ne.jp	94,545	0.24	95,182	0.24	1.33
ocn.ad.jp	94,479	0.24	95,982	0.24	0.41
dimenoc.com	93,712	0.24	96,309	0.24	-0.74
msft.net	93,603	0.24	93,414	0.23	2.22
ns01.idc.jp	88,010	0.22	86,887	0.22	3.33
ev1.net	87,113	0.22	99,313	0.25	-10.52
yahoo.com	87,098	0.22	88,574	0.22	0.31
bta.net.cn	86,376	0.22	96,463	0.24	-8.66
lnhi.net	84,889	0.22	85,044	0.21	1.82
webcontrolcenter.com	83,490	0.21	83,532	0.21	1.96
pwebtech.com	83,421	0.21	85,492	0.21	-0.46
nac.net	79,608	0.20	94,199	0.24	-13.79
netart.pl	79,560	0.20	79,758	0.20	1.76
untd.com	79,168	0.20	79,294	0.20	1.85
sparqnet.net	78,219	0.20	81,303	0.20	-1.86
proserve.nl	77,603	0.20	77,820	0.19	1.73
net.ru	76,711	0.20	73,240	0.18	6.84
rain.fr	75,741	0.19	76,369	0.19	1.17
twtelecom.net	74,212	0.19	83,240	0.21	-9.05
sprintlink.net	73,004	0.19	75,933	0.19	-1.92
superhosting.cz	72,088	0.18	71,751	0.18	2.49
tele.dk	71,449	0.18	69,623	0.17	4.69
servint.com	71,242	0.18	64,308	0.16	13.01
fastservers.net	70,831	0.18	81,002	0.20	-10.80
sdjnptt.net.cn	70,793	0.18	72,733	0.18	-0.71
servage.net	70,642	0.18	71,735	0.18	0.46
meganameservers.com	69,666	0.18	70,789	0.18	0.39
ctnt.com.cn	68,807	0.18	55,781	0.14	25.83
ultradns.net	66,759	0.17	59,084	0.15	15.26
dnspro.de	65,518	0.17	74,083	0.19	-9.78
scservers.com	64,858	0.17	66,967	0.17	-1.20
afrinic.net	64,827	0.17	64,676	0.16	2.25
phatservers.com	64,697	0.17	70,340	0.18	-6.17
pochta.ru	64,542	0.16	64,526	0.16	2.04
hananet.net	63,747	0.16	61,903	0.15	5.05
hostlab.nl	63,659	0.16	64,169	0.16	1.20
inetbone.net	63,430	0.16	58,540	0.15	10.53
sphere.ad.jp	63,377	0.16	64,065	0.16	0.91
rr.com	61,098	0.16	65,215	0.16	-4.43
dtag.de	60,818	0.16	61,439	0.15	0.98
tpnet.pl	60,678	0.15	64,516	0.16	-4.06
telecity.net	60,067	0.15	57,268	0.14	7.00
servidoresdns.net	59,703	0.15	60,294	0.15	1.01
xs4all.nl	56,280	0.14	57,700	0.14	-0.50
cnc-idc.com	55,538	0.14	62,223	0.16	-8.95
silkroadtechnologies.com	55,372	0.14	44,472	0.11	27.01
hostway.net	55,165	0.14	59,876	0.15	-6.02
rt-comm.ru	55,096	0.14	55,685	0.14	0.93
isprime.com	54,851	0.14	58,688	0.15	-4.66
mainnameserver.com	54,730	0.14	54,771	0.14	1.93
iprevolution.co.jp	54,307	0.14	54,228	0.14	2.16
ieurop.net	53,517	0.14	53,609	0.13	1.84
burst.net	53,517	0.14	56,353	0.14	-3.12
rapidswitch.com	53,502	0.14	51,128	0.13	6.75
inode.at	53,403	0.14	56,253	0.14	-3.16
maxim.net	53,074	0.14	54,099	0.14	0.08
gblx.net	52,873	0.14	39,616	0.10	36.15
sivit.org	51,984	0.13	55,311	0.14	-4.13
interware.hu	51,834	0.13	47,401	0.12	11.55
aspadmin.com	51,477	0.13	52,465	0.13	0.09
colt.net	51,383	0.13	52,099	0.13	0.61
70.42.30.1	51,300	0.13	0	0.00	0.00
kornet.net	50,665	0.13	52,522	0.13	-1.60
he.net	50,663	0.13	52,863	0.13	-2.23
integraonline.com	49,880	0.13	51,082	0.13	-0.39
elinuxservers.com	49,640	0.13	50,485	0.13	0.30
sc163.net	49,098	0.13	48,961	0.12	2.30
cnmobile.net	49,037	0.13	54,609	0.14	-8.40
hc.ru	48,480	0.12	47,724	0.12	3.63
in2net.com	48,126	0.12	48,861	0.12	0.48
hinet.net	48,111	0.12	47,303	0.12	3.75
dnspartner.de	47,645	0.12	45,588	0.11	6.61
forpsi.net	47,278	0.12	47,612	0.12	1.29
switchnap.com	45,930	0.12	46,100	0.12	1.63
casablanca.cz	45,868	0.12	46,263	0.12	1.14
ipx-server.de	44,971	0.11	45,676	0.11	0.44
tpt.net.cn	44,906	0.11	46,453	0.12	-1.39
dynamicweb.net	44,429	0.11	43,052	0.11	5.27
datapipe.net	43,543	0.11	48,503	0.12	-8.42
kei.pl	42,750	0.11	43,110	0.11	1.16
hbwhptt.net.cn	42,635	0.11	51,302	0.13	-15.22
donhost.co.uk	42,235	0.11	42,650	0.11	1.02
colo4dallas.net	41,711	0.11	41,075	0.10	3.59
datadragon.net	41,492	0.11	40,197	0.10	5.30
steadfast.net	41,450	0.11	55,977	0.14	-24.46
interlink.or.jp	41,377	0.11	40,506	0.10	4.20
clara.net	41,370	0.11	42,040	0.11	0.38
amenworld.com	41,323	0.11	43,998	0.11	-4.19
telia.com	40,474	0.10	42,886	0.11	-3.73
ch-meta.net	40,437	0.10	40,138	0.10	2.77
ensynch.com	39,940	0.10	42,054	0.11	-3.12
xo.com	39,930	0.10	40,561	0.10	0.42
ahhfptt.net.cn	39,718	0.10	40,731	0.10	-0.53
netbenefit.co.uk	38,956	0.10	35,305	0.09	12.56
gyron.net	38,855	0.10	38,966	0.10	1.72
t-online.hu	38,816	0.10	39,049	0.10	1.40
asahi-net.or.jp	38,777	0.10	38,866	0.10	1.78
liquidweb.com	38,510	0.10	39,716	0.10	-1.09
locaweb.com.br	38,460	0.10	37,322	0.09	5.12
keyweb.de	38,390	0.10	34,183	0.09	14.57
webfusion.co.uk	37,401	0.10	34,610	0.09	10.24
west-datacenter.net	37,183	0.09	37,454	0.09	1.27
uk2.net	37,139	0.09	37,140	0.09	2.01
namedserver.net	36,608	0.09	36,141	0.09	3.33
carpathiahost.net	36,552	0.09	43,561	0.11	-14.40
servepath.com	35,590	0.09	38,044	0.10	-4.57
inet.it	35,398	0.09	35,737	0.09	1.04
server260.com	35,348	0.09	34,575	0.09	4.29
calpop.com	35,295	0.09	30,712	0.08	17.23
gxn.net	35,268	0.09	40,897	0.10	-12.03
activeisp.com	35,244	0.09	35,569	0.09	1.08
dn.net	35,162	0.09	35,099	0.09	2.19
fdcservers.net	34,931	0.09	31,998	0.08	11.36
alabanza.com	34,852	0.09	41,232	0.10	-13.77
ripn.net	34,771	0.09	33,863	0.08	4.75
westmaster.com	34,681	0.09	37,618	0.09	-5.95
gzidc.com	34,403	0.09	35,098	0.09	-0.01
alibabaonline.com	34,268	0.09	34,461	0.09	1.44
intercom.com.cn	34,191	0.09	34,550	0.09	0.95
google.com	34,170	0.09	28,879	0.07	20.70
widexs.nl	34,078	0.09	34,297	0.09	1.36
iomart.com	33,609	0.09	0	0.00	0.00
superb.net	33,280	0.08	34,861	0.09	-2.62
cysonet.com	32,852	0.08	33,253	0.08	0.78
myregisteredsite.com	32,731	0.08	32,769	0.08	1.89
ee.net	32,608	0.08	34,441	0.09	-3.42
interbusiness.it	32,259	0.08	32,589	0.08	0.98
bt.net	31,862	0.08	31,902	0.08	1.88
netnation.com	31,584	0.08	36,277	0.09	-11.19
rackforce.com	31,517	0.08	31,745	0.08	1.28
inflow.net	31,447	0.08	32,211	0.08	-0.41
hm23	31,241	0.08	31,597	0.08	0.86
jump.ro	30,664	0.08	30,399	0.08	2.90
noc4hosts.com	30,445	0.08	37,743	0.09	-17.71
uol.com.br	30,199	0.08	48,104	0.12	-35.96
sagonet.com	30,193	0.08	31,061	0.08	-0.84
hesjptt.net.cn	29,821	0.08	23,419	0.06	29.90
gldn.net	29,806	0.08	29,789	0.07	2.07
relcom.ru	29,641	0.08	27,708	0.07	9.13
datanet.hu	29,575	0.08	34,125	0.09	-11.59
swbell.net	29,552	0.08	29,122	0.07	3.52
inet.co.th	29,487	0.08	34,758	0.09	-13.46
propagation.net	29,065	0.07	34,914	0.09	-15.08
infomaniak.ch	29,016	0.07	29,045	0.07	1.91
ocn.ne.jp	28,541	0.07	28,758	0.07	1.24
nationalnet.com	28,459	0.07	27,879	0.07	4.13
surf-town.net	28,457	0.07	28,741	0.07	1.00
nethost.cz	28,155	0.07	28,244	0.07	1.69
above.net	28,040	0.07	33,690	0.08	-15.10
net.ua	28,038	0.07	29,603	0.07	-3.38
bell.ca	28,012	0.07	28,155	0.07	1.49
comcastbusiness.net	27,984	0.07	27,778	0.07	2.77
bellsouth.net	27,957	0.07	29,015	0.07	-1.71
spaceweb.ru	27,922	0.07	28,019	0.07	1.66
serico.de	27,652	0.07	24,255	0.06	16.30
voxel.net	27,598	0.07	32,942	0.08	-14.54
hostpoint.ch	27,433	0.07	27,768	0.07	0.78
ns-px.online.sh.cn	27,357	0.07	28,072	0.07	-0.59
oxeo.com	27,287	0.07	27,675	0.07	0.58
tailormadeservers.com	27,114	0.07	25,372	0.06	9.01
transip.net	27,110	0.07	26,920	0.07	2.73
bezeqint.net	26,981	0.07	27,193	0.07	1.22
lambdanet.net	26,921	0.07	25,069	0.06	9.55
live-servers.net	26,915	0.07	27,655	0.07	-0.72
kidc.net	26,637	0.07	27,068	0.07	0.39
cnchost.com	26,479	0.07	26,541	0.07	1.77
kpn.net	26,278	0.07	26,835	0.07	-0.11
evanzo.com	26,144	0.07	27,243	0.07	-2.10
attractsoft.com	26,127	0.07	26,273	0.07	1.44
viawest.net	26,057	0.07	25,907	0.06	2.60
fastweb.it	26,004	0.07	25,788	0.06	2.86
mastak.ru	25,930	0.07	25,774	0.06	2.63
wtr.ru	25,906	0.07	23,972	0.06	10.24
drcnet.com.cn	25,701	0.07	26,293	0.07	-0.29
gandi.net	25,628	0.07	25,164	0.06	3.89
infobox.org	25,478	0.07	25,367	0.06	2.46
it.net	25,476	0.07	25,843	0.06	0.56
cnuninet.net	25,445	0.06	30,560	0.08	-15.06
nocdirect.com	25,423	0.06	25,678	0.06	1.00
home.pl	25,353	0.06	25,437	0.06	1.67
peterhost.ru	25,300	0.06	25,276	0.06	2.11
majordomo.ru	25,281	0.06	25,005	0.06	3.14
alchemyfx.com	24,907	0.06	24,061	0.06	5.60
hazzptt.net.cn	24,872	0.06	27,701	0.07	-8.41
valuehost.ru	24,820	0.06	23,569	0.06	7.42

* 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.