Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 24834852 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	Mar 2007 Count*	Mar 2007 %	Feb 2007 Count*	Feb 2007 %	Growth %
theplanet.com	970,713	3.91	901,819	3.78	3.52
schlund.de	910,429	3.67	900,094	3.77	-2.72
y.dns.jp	651,064	2.62	637,396	2.67	-1.76
ev1servers.net	539,934	2.17	547,341	2.29	-5.13
lacnic.net	307,615	1.24	316,126	1.32	-6.42
secureserver.net	281,378	1.13	268,121	1.12	0.93
verio.net	278,246	1.12	341,225	1.43	-21.58
dns.kr	270,608	1.09	263,265	1.10	-1.14
rackspace.com	265,517	1.07	255,100	1.07	0.10
sakura.ad.jp	220,958	0.89	223,639	0.94	-4.98
layeredtech.com	218,968	0.88	201,687	0.84	4.41
isprime.com	216,836	0.87	161,720	0.68	28.95
a.in-addr.cn	210,423	0.85	196,194	0.82	3.15
pnap.net	203,792	0.82	166,447	0.70	17.75
uu.net	199,815	0.80	215,848	0.90	-10.97
a.dns.br	192,997	0.78	203,643	0.85	-8.85
your-server.de	165,039	0.66	146,672	0.61	8.22
cogentco.com	158,725	0.64	287,246	1.20	-46.86
ovh.net	155,855	0.63	133,827	0.56	12.00
yahoo.com	154,868	0.62	148,087	0.62	0.58
savvis.net	150,108	0.60	197,698	0.83	-26.98
dreamhost.com	149,846	0.60	143,902	0.60	0.15
nac.net	148,196	0.60	135,083	0.57	5.51
ipowerweb.net	144,162	0.58	140,828	0.59	-1.55
att.net	142,737	0.57	152,302	0.64	-9.87
level3.net	141,386	0.57	139,655	0.58	-2.63
peer1.net	140,635	0.57	143,760	0.60	-5.92
leaseweb.nl	140,634	0.57	128,631	0.54	5.15
technorail.com	131,818	0.53	127,734	0.53	-0.75
proxad.net	124,010	0.50	120,742	0.51	-1.22
guangzhou.gd.cn	123,686	0.50	112,394	0.47	5.84
cais.com	108,686	0.44	97,737	0.41	6.95
gnax.net	106,110	0.43	104,495	0.44	-2.34
yourhostingaccount.com	105,873	0.43	103,280	0.43	-1.41
secure.net	101,251	0.41	100,367	0.42	-2.98
fasthosts.net.uk	100,957	0.41	103,921	0.44	-6.57
localhost	98,511	0.40	81,561	0.34	16.16
sprintlink.net	97,344	0.39	110,358	0.46	-15.17
sta.net.cn	97,136	0.39	97,116	0.41	-3.81
softlayer.com	96,197	0.39	73,291	0.31	26.23
hosteurope.de	92,993	0.37	88,650	0.37	0.89
pair.com	92,648	0.37	93,129	0.39	-4.32
interland.net	92,323	0.37	92,390	0.39	-3.90
qwest.net	91,432	0.37	92,933	0.39	-5.38
pwebtech.com	89,049	0.36	85,961	0.36	-0.37
yandex.ru	88,862	0.36	81,231	0.34	5.21
pri-dns.de	87,646	0.35	85,257	0.36	-1.13
fc2.com	87,204	0.35	73,700	0.31	13.80
rz-ip.net	84,276	0.34	78,639	0.33	3.07
cncnet.net	83,117	0.33	73,333	0.31	9.01
dialtoneinternet.net	79,996	0.32	159,429	0.67	-51.74
namespace4you.de	77,538	0.31	74,318	0.31	0.34
zjnbptt.net.cn	76,781	0.31	67,196	0.28	9.89
masterhost.ru	76,418	0.31	71,687	0.30	2.52
scservers.com	75,403	0.30	76,373	0.32	-5.05
dns.fz.fj.cn	74,077	0.30	67,862	0.28	4.98
alabanza.com	73,668	0.30	75,233	0.31	-5.83
eli.net	71,336	0.29	65,355	0.27	4.98
xlink.net	71,021	0.29	39,654	0.17	72.25
intergenia.de	70,672	0.28	70,955	0.30	-4.21
ipx-server.de	70,208	0.28	70,111	0.29	-3.69
interq.or.jp	69,081	0.28	66,079	0.28	0.54
dimenoc.com	69,015	0.28	68,642	0.29	-3.30
abac.com	66,222	0.27	64,299	0.27	-0.95
ocn.ad.jp	65,538	0.26	59,836	0.25	5.34
geodns.net	64,914	0.26	63,761	0.27	-2.09
3fn.net	63,673	0.26	50,648	0.21	20.91
tpnet.pl	62,905	0.25	55,154	0.23	9.69
dtag.de	61,484	0.25	60,835	0.25	-2.80
datapipe.net	57,779	0.23	68,719	0.29	-19.14
fastservers.net	56,940	0.23	48,753	0.20	12.32
usen.ad.jp	56,656	0.23	52,080	0.22	4.62
kasserver.com	56,595	0.23	55,739	0.23	-2.35
cnc-idc.com	56,270	0.23	48,837	0.20	10.81
twnic.net	56,151	0.23	52,748	0.22	2.38
rt-comm.ru	55,889	0.23	44,155	0.18	21.73
lunarpages.com	55,247	0.22	50,608	0.21	4.99
nmc1.ptt.js.cn	54,290	0.22	54,017	0.23	-3.34
tele.dk	53,289	0.21	52,775	0.22	-2.89
liquidweb.com	53,288	0.21	59,401	0.25	-13.72
managedsg-inc.com	52,177	0.21	34,803	0.15	44.18
ns01.idc.jp	51,607	0.21	48,748	0.20	1.81
inode.at	51,226	0.21	47,979	0.20	2.68
twtelecom.net	50,976	0.21	52,460	0.22	-6.55
hostway.net	50,668	0.20	55,624	0.23	-12.39
rain.fr	49,989	0.20	45,489	0.19	5.69
home.pl	49,842	0.20	46,332	0.19	3.46
kornet.net	49,436	0.20	51,369	0.22	-7.45
servint.com	48,031	0.19	49,518	0.21	-6.71
hichina.com	47,778	0.19	42,216	0.18	8.84
bta.net.cn	47,512	0.19	48,203	0.20	-5.20
bluehost.com	46,558	0.19	42,153	0.18	6.22
inetbone.net	45,703	0.18	44,926	0.19	-2.16
pilosoft.com	45,438	0.18	46,178	0.19	-5.37
b-one-dns.net	45,357	0.18	42,586	0.18	2.43
valueweb.net	45,112	0.18	45,023	0.19	-3.64
sagonet.com	44,640	0.18	43,772	0.18	-1.92
zipa.com	44,638	0.18	63,368	0.27	-32.25
rr.com	44,281	0.18	40,919	0.17	4.08
cihost.com	44,245	0.18	49,678	0.21	-14.34
afrinic.net	43,981	0.18	44,673	0.19	-5.32
he.net	43,325	0.17	46,456	0.19	-10.31
ipipe.net	43,120	0.17	36,758	0.15	12.82
sphere.ad.jp	41,367	0.17	40,644	0.17	-2.12
inflow.net	41,207	0.17	60,639	0.25	-34.65
bluegravity.com	41,193	0.17	52,416	0.22	-24.42
in2net.com	40,800	0.16	38,770	0.16	1.21
colt.net	40,565	0.16	48,490	0.20	-19.54
net.ru	39,594	0.16	37,463	0.16	1.64
servidoresdns.net	39,010	0.16	37,392	0.16	0.34
lnhi.net	38,695	0.16	37,616	0.16	-1.07
hananet.net	38,142	0.15	38,570	0.16	-4.89
cn.net	38,133	0.15	37,242	0.16	-1.53
aspadmin.com	38,098	0.15	34,374	0.14	6.59
iweb-hosting.com	36,520	0.15	37,254	0.16	-5.72
mediatemple.net	36,354	0.15	33,781	0.14	3.50
dion.ne.jp	36,226	0.15	34,398	0.14	1.28
clara.net	35,922	0.14	35,736	0.15	-3.33
casablanca.cz	35,851	0.14	32,320	0.14	6.68
sourcedns.com	35,810	0.14	31,546	0.13	9.17
backwoodsmedia.com	35,660	0.14	20,556	0.09	66.84
xs4all.nl	34,983	0.14	32,873	0.14	2.35
atrivo.com	34,702	0.14	31,005	0.13	7.64
qsc.de	33,722	0.14	31,084	0.13	4.34
netart.pl	33,285	0.13	30,438	0.13	5.17
hbwhptt.net.cn	33,145	0.13	25,080	0.11	27.10
interbusiness.it	33,122	0.13	32,327	0.14	-1.46
dns2.xm.fj.cn	32,962	0.13	33,055	0.14	-4.10
gxn.net	32,787	0.13	28,260	0.12	11.58
webcontrolcenter.com	32,382	0.13	37,498	0.16	-16.95
telecity.net	32,246	0.13	25,197	0.11	23.08
swbell.net	32,201	0.13	37,108	0.16	-16.54
phatservers.com	32,084	0.13	31,997	0.13	-3.56
c.ns	31,931	0.13	30,674	0.13	0.12
interware.hu	31,609	0.13	37,860	0.16	-19.71
primarydns.com	31,202	0.13	34,943	0.15	-14.12
host4u.net	31,178	0.13	33,649	0.14	-10.89
amenworld.com	31,120	0.13	29,743	0.12	0.63
bellsouth.net	30,847	0.12	30,422	0.13	-2.48
servepath.com	30,817	0.12	27,122	0.11	9.28
donhost.co.uk	30,679	0.12	30,103	0.13	-1.99
meganameservers.com	30,288	0.12	38,648	0.16	-24.63
elinuxservers.com	29,911	0.12	35,429	0.15	-18.80
iomart.co.uk	29,503	0.12	29,121	0.12	-2.56
orbus.fr	29,337	0.12	145	0.00	19358.31
calpop.com	29,334	0.12	40,429	0.17	-30.22
sippia.de	29,295	0.12	43,861	0.18	-35.76
west-datacenter.net	29,140	0.12	28,466	0.12	-1.55
above.net	28,991	0.12	27,786	0.12	0.34
telia.com	28,818	0.12	27,390	0.11	1.19
inhoster.com	28,631	0.12	29,173	0.12	-5.61
hinet.net	28,513	0.11	27,957	0.12	-1.91
proserve.nl	28,438	0.11	26,542	0.11	3.04
netnation.com	28,002	0.11	27,897	0.12	-3.46
datanet.hu	27,867	0.11	26,618	0.11	0.69
netbenefit.co.uk	27,379	0.11	26,166	0.11	0.63
dn.net	27,320	0.11	26,601	0.11	-1.23
deftechgroup.com	27,216	0.11	27,242	0.11	-3.92
widexs.nl	27,051	0.11	28,093	0.12	-7.39
earthlink.net	26,801	0.11	49,343	0.21	-47.76
kidc.net	26,755	0.11	26,362	0.11	-2.39
intercom.com.cn	26,674	0.11	23,473	0.10	9.29
hopone.net	26,463	0.11	28,024	0.12	-9.18
burst.net	26,365	0.11	31,886	0.13	-20.48
easynet.co.uk	26,098	0.11	24,481	0.10	2.53
pbi.net	25,820	0.10	28,219	0.12	-12.00
anonymous-servers.com	25,748	0.10	24,871	0.10	-0.43
ns-px.online.sh.cn	25,596	0.10	20,419	0.09	20.56
rackforce.com	25,538	0.10	25,532	0.11	-3.80
pipex.net	24,992	0.10	28,151	0.12	-14.62
sdjnptt.net.cn	24,891	0.10	23,981	0.10	-0.18
uk2.net	24,801	0.10	26,727	0.11	-10.76
dnspro.de	24,593	0.10	22,161	0.09	6.73
iprevolution.co.jp	24,230	0.10	21,616	0.09	7.80
keyweb.de	24,184	0.10	20,959	0.09	10.97
alchemyfx.com	24,074	0.10	52,646	0.22	-56.02
mcbone.net	24,025	0.10	23,284	0.10	-0.77
tmag.de	23,801	0.10	23,313	0.10	-1.81
cnchost.com	23,721	0.10	23,745	0.10	-3.92
xo.com	23,714	0.10	59,577	0.25	-61.72
uslec.net	23,639	0.10	41,578	0.17	-45.32
inet.it	23,524	0.09	22,330	0.09	1.32
uunet.ca	23,498	0.09	24,074	0.10	-6.13
valuehost.ru	23,434	0.09	21,830	0.09	3.24
aitcom.net	23,250	0.09	22,963	0.10	-2.62
server260.com	23,006	0.09	22,388	0.09	-1.17
crystaltech.com	22,868	0.09	18,348	0.08	19.87
spylog.com	22,684	0.09	18,154	0.08	20.17
ip-plus.net	22,648	0.09	22,574	0.09	-3.51
corbina.net	22,633	0.09	22,614	0.09	-3.75
hosting.com	22,554	0.09	35,208	0.15	-38.39
demon.co.uk	22,474	0.09	22,463	0.09	-3.78
gldn.net	22,302	0.09	25,692	0.11	-16.52
gyron.net	22,190	0.09	21,503	0.09	-0.75
ctnt.com.cn	22,008	0.09	14,427	0.06	46.71
untd.com	21,955	0.09	16,145	0.07	30.78
kei.pl	21,954	0.09	21,038	0.09	0.36
forpsi.net	21,850	0.09	18,141	0.08	15.84
webfusion.co.uk	21,747	0.09	21,588	0.09	-3.12
as5587.net	21,733	0.09	21,966	0.09	-4.85
cybercon.com	21,692	0.09	88,661	0.37	-76.47
trouble-free.net	21,656	0.09	21,532	0.09	-3.27
sc163.net	21,597	0.09	0	0.00	0.00
fastdns.net	21,577	0.09	22,877	0.10	-9.29
tera-byte.com	21,453	0.09	20,655	0.09	-0.11
sw-core.net	21,453	0.09	19,591	0.08	5.31
4ph.com	21,440	0.09	50,145	0.21	-58.88
hivelocity.net	21,349	0.09	83,276	0.35	-75.34
speakeasy.net	21,289	0.09	22,114	0.09	-7.41
vwh1.net	21,288	0.09	21,488	0.09	-4.72
keyway.net	21,279	0.09	19,290	0.08	6.09
fastweb.it	21,211	0.09	20,370	0.09	0.14
pochta.ru	21,164	0.09	15,760	0.07	29.15
server-dns.com	21,107	0.08	20,939	0.09	-3.05
gblx.net	21,096	0.08	31,072	0.13	-34.70
dynamicweb.net	21,007	0.08	19,526	0.08	3.47
futuro.pl	20,894	0.08	20,517	0.09	-2.06
home.nl	20,811	0.08	13,362	0.06	49.79
cox.net	20,720	0.08	19,773	0.08	0.78
national-net.com	20,547	0.08	19,195	0.08	2.95
ocn.ne.jp	20,489	0.08	19,910	0.08	-1.03
fibercloud.com	20,481	0.08	14,612	0.06	34.80
cnuninet.net	20,157	0.08	19,545	0.08	-0.81
evanzo.com	20,155	0.08	19,927	0.08	-2.73
sivit.org	19,808	0.08	16,825	0.07	13.23
ttnet.net.tr	19,651	0.08	18,799	0.08	0.53
activeisp.com	19,601	0.08	19,512	0.08	-3.39
hm23	19,541	0.08	19,306	0.08	-2.66
bt.net	19,507	0.08	24,355	0.10	-22.97
colo4dallas.net	19,246	0.08	21,497	0.09	-13.90
enta.net	19,159	0.08	19,137	0.08	-3.72
ieurop.net	19,156	0.08	17,604	0.07	4.65
tierra.net	19,105	0.08	18,032	0.08	1.90
ilse.net	19,064	0.08	18,301	0.08	0.18
infobox.org	19,049	0.08	21,259	0.09	-13.82
dialtelecom.cz	19,045	0.08	289	0.00	6237.83
lambdanet.net	18,938	0.08	18,824	0.08	-3.24
dnsjunction.com	18,903	0.08	18,405	0.08	-1.22
t-online.hu	18,832	0.08	17,430	0.07	3.91
westmaster.com	18,765	0.08	13,107	0.05	37.69
ikp.pl	18,528	0.07	18,339	0.08	-2.83
superb.net	18,432	0.07	21,452	0.09	-17.37
alphared.com	18,344	0.07	16,137	0.07	9.33
globalcompass.com	18,229	0.07	15,701	0.07	11.66
bell.ca	18,041	0.07	17,089	0.07	1.53
cnmobile.net	17,979	0.07	16,183	0.07	6.85
voxel.net	17,912	0.07	22,189	0.09	-22.36
sbcidc.com	17,890	0.07	19,028	0.08	-9.58
firstserver.ne.jp	17,809	0.07	17,278	0.07	-0.87
v-ns.de	17,692	0.07	17,037	0.07	-0.13

* 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.