Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 69233873 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 2012 Count*	Dec 2012 %	Nov 2012 Count*	Nov 2012 %	Growth %
ui-dns.de	2,055,529	2.97	2,042,983	2.97	-0.02
secureserver.net	2,039,333	2.95	1,948,732	2.83	3.99
theplanet.com	1,772,328	2.56	1,788,032	2.60	-1.50
your-server.de	1,678,095	2.42	1,663,439	2.42	0.25
networklayer.com	1,574,997	2.27	1,586,454	2.31	-1.35
y.dns.jp	1,524,273	2.20	1,499,960	2.18	0.98
ovh.net	1,474,793	2.13	1,524,401	2.22	-3.86
unifiedlayer.com	1,051,870	1.52	3,693	0.01	28203.24
rackspace.com	965,105	1.39	966,118	1.40	-0.73
a.in-addr.cn	934,459	1.35	958,748	1.39	-3.15
sakura.ad.jp	920,732	1.33	896,753	1.30	2.03
global-datacenter.com	917,994	1.33	925,116	1.34	-1.40
softlayer.com	889,019	1.28	933,428	1.36	-5.36
amazon.com	815,503	1.18	1,028,949	1.50	-21.24
lacnic.net	770,595	1.11	764,690	1.11	0.14
ns	658,330	0.95	648,623	0.94	0.86
yourhostingaccount.com	598,866	0.86	570,444	0.83	4.32
leaseweb.nl	595,861	0.86	581,713	0.85	1.79
dreamhost.com	593,084	0.86	600,074	0.87	-1.79
peer1.net	575,704	0.83	567,409	0.82	0.82
twnic.net	536,342	0.77	521,186	0.76	2.26
dns.kr	513,666	0.74	536,695	0.78	-4.89
a.dns.br	488,527	0.71	485,738	0.71	-0.06
zjnbptt.net.cn	437,395	0.63	409,607	0.60	6.11
ui-dns.com	433,751	0.63	432,768	0.63	-0.40
hosteurope.de	387,034	0.56	382,820	0.56	0.46
ntt.net	386,436	0.56	390,552	0.57	-1.68
interq.or.jp	372,899	0.54	336,984	0.49	9.96
mediatemple.net	353,884	0.51	354,852	0.52	-0.90
technorail.com	351,385	0.51	348,609	0.51	0.16
guangzhou.gd.cn	347,086	0.50	328,469	0.48	5.00
pnap.net	339,917	0.49	328,904	0.48	2.70
b-one-dns.net	316,741	0.46	312,352	0.45	0.77
proxad.net	302,363	0.44	322,344	0.47	-6.79
phatservers.com	299,784	0.43	311,123	0.45	-4.25
xlink.net	296,934	0.43	270,578	0.39	9.05
namespace4you.de	281,782	0.41	278,279	0.40	0.62
sourcedns.com	272,203	0.39	289,640	0.42	-6.61
home.pl	262,108	0.38	255,747	0.37	1.84
kasserver.com	261,208	0.38	257,334	0.37	0.87
sta.net.cn	260,180	0.38	251,298	0.37	2.88
level3.net	245,929	0.36	242,833	0.35	0.64
localhost	245,402	0.35	238,138	0.35	2.40
dns.fz.fj.cn	241,658	0.35	246,488	0.36	-2.58
iweb-hosting.com	237,085	0.34	220,899	0.32	6.65
servercentral.net	236,955	0.34	233,561	0.34	0.81
singlehop.net	235,217	0.34	232,269	0.34	0.63
cogentco.com	227,957	0.33	237,216	0.34	-4.51
intergenia.de	220,033	0.32	218,231	0.32	0.19
burst.net	219,342	0.32	171,031	0.25	27.44
linode.com	214,511	0.31	218,756	0.32	-2.56
mainnameserver.com	201,108	0.29	197,160	0.29	1.36
nmc1.ptt.js.cn	196,749	0.28	189,942	0.28	2.93
dimenoc.com	196,623	0.28	201,744	0.29	-3.15
yandex.ru	194,241	0.28	189,853	0.28	1.67
zzidc.com	192,150	0.28	189,753	0.28	0.62
savvis.net	178,493	0.26	185,157	0.27	-4.21
sparqnet.net	176,606	0.26	167,861	0.24	4.55
netart.pl	175,385	0.25	169,502	0.25	2.82
cais.com	170,077	0.25	147,454	0.21	14.62
cwie.net	169,074	0.24	203,387	0.30	-17.39
geodns.net	168,425	0.24	175,504	0.26	-4.64
trellian.com	168,015	0.24	158,241	0.23	5.51
jump.ro	167,893	0.24	155,624	0.23	7.20
rz-ip.net	163,556	0.24	166,173	0.24	-2.20
masterhost.ru	162,724	0.24	160,695	0.23	0.62
tfn.net.tw	159,939	0.23	158,234	0.23	0.44
he.net	151,317	0.22	142,610	0.21	5.44
hichina.com	148,489	0.21	152,300	0.22	-3.12
lunarpages.com	143,808	0.21	143,909	0.21	-0.70
pwebtech.com	138,240	0.20	119,085	0.17	15.35
gtei.net	137,750	0.20	135,156	0.20	1.28
ns1.xserver.jp	136,508	0.20	134,794	0.20	0.63
locaweb.com.br	135,861	0.20	133,320	0.19	1.26
uu.net	134,083	0.19	145,581	0.21	-8.48
relax.ru	132,523	0.19	123,003	0.18	7.06
nethost.cz	131,057	0.19	129,238	0.19	0.77
fhe3rz.net	129,423	0.19	86,931	0.13	47.94
servint.com	128,803	0.19	127,823	0.19	0.13
qwest.net	127,928	0.18	88,574	0.13	43.52
carpathiahost.net	127,453	0.18	118,705	0.17	6.69
fasthosts.net.uk	126,096	0.18	126,086	0.18	-0.62
secure.net	125,843	0.18	127,026	0.18	-1.56
flexwebhosting.nl	124,747	0.18	131,860	0.19	-5.99
amerinoc.com	124,196	0.18	67,689	0.10	82.32
kornet.net	122,026	0.18	123,928	0.18	-2.16
hananet.net	122,025	0.18	105,108	0.15	15.36
afrinic.net	120,621	0.17	118,551	0.17	1.10
westmaster.com	120,466	0.17	122,524	0.18	-2.30
silkroadtechnologies.com	119,964	0.17	128,017	0.19	-6.88
gnax.net	117,610	0.17	117,374	0.17	-0.43
superhosting.cz	116,816	0.17	107,271	0.16	8.21
ns01.idc.jp	115,292	0.17	115,375	0.17	-0.70
dnsmadeeasy.com	115,197	0.17	90,352	0.13	26.69
nwtgigalink.com	115,149	0.17	114,699	0.17	-0.24
rt-comm.ru	113,029	0.16	110,252	0.16	1.87
net.ru	110,626	0.16	109,234	0.16	0.64
main-hosting.com	109,962	0.16	107,012	0.16	2.11
ucoz.net	109,168	0.16	104,488	0.15	3.82
hinet.net	109,015	0.16	105,198	0.15	2.98
ripn.net	108,750	0.16	106,892	0.16	1.10
pair.com	106,912	0.15	107,102	0.16	-0.81
bta.net.cn	106,655	0.15	100,350	0.15	5.61
gblx.net	105,942	0.15	78,870	0.11	33.48
iprevolution.co.jp	104,961	0.15	113,518	0.17	-8.12
untd.com	101,749	0.15	99,792	0.15	1.32
layeredtech.com	100,810	0.15	99,513	0.14	0.66
kryptdns.com	98,097	0.14	86,150	0.13	13.15
cncnet.net	97,655	0.14	86,477	0.13	12.21
nic.ru	97,578	0.14	95,414	0.14	1.62
yahoo.com	97,301	0.14	59,060	0.09	63.71
pri-dns.de	97,258	0.14	127,236	0.18	-24.04
lnhi.net	95,391	0.14	97,354	0.14	-2.63
msft.net	94,740	0.14	85,710	0.12	9.84
att.net	92,939	0.13	95,732	0.14	-3.53
inmotionhosting.com	92,914	0.13	91,696	0.13	0.69
xs4all.nl	91,981	0.13	92,772	0.13	-1.48
comcastbusiness.net	91,038	0.13	86,741	0.13	4.29
nobistech.net	89,136	0.13	88,950	0.13	-0.42
t-online.hu	86,020	0.12	77,887	0.11	9.75
servidoresdns.net	86,006	0.12	85,841	0.12	-0.44
hbwhptt.net.cn	85,641	0.12	85,756	0.12	-0.76
kei.pl	83,644	0.12	83,112	0.12	0.01
datadragon.net	82,911	0.12	105,207	0.15	-21.69
nocdirect.com	82,884	0.12	84,877	0.12	-2.96
usen.ad.jp	82,080	0.12	89,697	0.13	-9.07
sphere.ad.jp	81,534	0.12	81,073	0.12	-0.07
rr.com	80,314	0.12	81,744	0.12	-2.37
dnspartner.de	80,246	0.12	81,571	0.12	-2.24
inetbone.net	78,918	0.11	77,618	0.11	1.03
casablanca.cz	78,531	0.11	75,005	0.11	4.04
interware.hu	78,142	0.11	77,816	0.11	-0.21
meganameservers.com	77,993	0.11	76,997	0.11	0.65
spaceweb.ru	77,448	0.11	76,358	0.11	0.79
voodoo.com	76,829	0.11	75,073	0.11	1.69
hc.ru	75,736	0.11	75,756	0.11	-0.66
ocn.ad.jp	75,698	0.11	82,141	0.12	-8.42
uk2.net	75,635	0.11	75,288	0.11	-0.17
intercom.com.cn	75,112	0.11	73,806	0.11	1.13
ahhfptt.net.cn	74,945	0.11	68,175	0.10	9.24
uol.com.br	74,899	0.11	79,473	0.12	-6.35
gzidc.com	74,689	0.11	71,982	0.10	3.11
ch-meta.net	74,283	0.11	73,563	0.11	0.34
sv.madame.jp	73,974	0.11	70,002	0.10	5.01
steadfast.net	72,997	0.11	65,676	0.10	10.45
colo4dallas.net	72,372	0.10	71,404	0.10	0.72
cyso.nl	72,255	0.10	71,639	0.10	0.22
sc163.net	71,666	0.10	68,001	0.10	4.73
usiphosting.com	71,341	0.10	73,319	0.11	-3.31
dynamicweb.net	71,133	0.10	71,440	0.10	-1.06
twtelecom.net	70,820	0.10	71,132	0.10	-1.07
deninet.hu	70,566	0.10	60,046	0.09	16.78
bjtelecom.net	70,351	0.10	71,527	0.10	-2.26
homestead.com	70,047	0.10	65,260	0.09	6.66
tele.dk	69,719	0.10	70,433	0.10	-1.64
forpsi.net	69,688	0.10	62,412	0.09	10.95
edatahome.com	67,436	0.10	60,239	0.09	11.24
hbtele.com	66,706	0.10	61,339	0.09	8.06
xl-internetservices.com	65,923	0.10	62,070	0.09	5.54
sdjnptt.net.cn	65,455	0.09	65,129	0.09	-0.13
dtag.de	65,092	0.09	73,413	0.11	-11.89
rain.fr	64,887	0.09	63,756	0.09	1.13
ns-px.online.sh.cn	64,718	0.09	69,110	0.10	-6.95
wiredtree.com	64,581	0.09	63,879	0.09	0.46
advancedhosters.com	63,919	0.09	64,282	0.09	-1.19
ispsystem.net	63,853	0.09	61,573	0.09	3.05
cds-china.com	63,736	0.09	56,606	0.08	11.89
sharktech.net	63,712	0.09	78,848	0.11	-19.71
register.it	63,616	0.09	77,914	0.11	-18.87
ns.topnew.cn	63,518	0.09	57,864	0.08	9.08
dynect.net	63,226	0.09	79,203	0.12	-20.68
eukhost.com	63,151	0.09	62,561	0.09	0.31
as29550.net	62,925	0.09	62,531	0.09	0.00
virtualxs.com	62,902	0.09	43,833	0.06	42.60
aspadmin.com	62,635	0.09	59,609	0.09	4.41
server260.com	62,534	0.09	62,303	0.09	-0.26
webcontrolcenter.com	62,506	0.09	62,748	0.09	-1.01
drive.ne.jp	61,937	0.09	59,065	0.09	4.20
hivelocity.net	61,038	0.09	60,062	0.09	0.98
gyron.net	60,819	0.09	61,078	0.09	-1.05
cpi.ad.jp	60,420	0.09	59,021	0.09	1.72
nsserve.de	59,248	0.09	59,348	0.09	-0.80
hispalisdns.com	59,015	0.09	64,945	0.09	-9.70
ns1	58,965	0.09	58,275	0.08	0.55
seeweb.it	58,713	0.08	63,506	0.09	-8.13
servage.net	58,602	0.08	59,654	0.09	-2.38
isprime.com	58,549	0.08	58,620	0.09	-0.75
bhpr.net	57,883	0.08	55,123	0.08	4.34
privatesystems.net	56,784	0.08	63,386	0.09	-10.98
midphase.com	56,467	0.08	55,986	0.08	0.22
donhost.co.uk	56,276	0.08	56,049	0.08	-0.23
colt.net	56,208	0.08	57,586	0.08	-3.01
yandex.net	55,840	0.08	54,546	0.08	1.73
bezeqint.net	55,468	0.08	52,954	0.08	4.09
volia.com	55,336	0.08	52,473	0.08	4.79
limestonenetworks.com	54,833	0.08	50,245	0.07	8.44
softonic.com	54,713	0.08	47,402	0.07	14.70
webnx.com	54,678	0.08	54,848	0.08	-0.94
rapidswitch.com	54,673	0.08	52,759	0.08	2.97
skyrock.net	54,142	0.08	38,651	0.06	39.20
cattelecom.com	54,099	0.08	54,020	0.08	-0.49
surf-town.net	53,688	0.08	53,713	0.08	-0.68
hostpoint.ch	52,759	0.08	52,102	0.08	0.62
telia.com	52,343	0.08	50,051	0.07	3.92
lambdanet.net	52,337	0.08	52,708	0.08	-1.33
dinahosting.com	51,557	0.07	51,775	0.08	-1.05
cmmail.com	51,512	0.07	55,691	0.08	-8.09
typo3server.com	51,465	0.07	50,388	0.07	1.49
gogrid.com	50,963	0.07	68,777	0.10	-26.37
transip.net	50,948	0.07	47,198	0.07	7.26
hoster.ru	50,750	0.07	60,938	0.09	-17.24
udagdns.net	50,588	0.07	48,695	0.07	3.23
netbenefit.co.uk	50,459	0.07	50,263	0.07	-0.24
marchex.com	50,422	0.07	49,773	0.07	0.67
google.com	50,061	0.07	73,286	0.11	-32.12
nebula.fi	49,778	0.07	48,911	0.07	1.13
loopia.se	49,751	0.07	49,177	0.07	0.53
uhost.ro	49,743	0.07	62,497	0.09	-20.91
take2hosting.com	49,445	0.07	49,641	0.07	-1.02
sprintlink.net	49,435	0.07	51,983	0.08	-5.50
infomaniak.ch	49,344	0.07	48,906	0.07	0.26
jino.ru	49,332	0.07	48,763	0.07	0.53
in2net.com	49,324	0.07	48,574	0.07	0.90
webazilla.com	49,236	0.07	48,020	0.07	1.89
kidc.net	49,221	0.07	58,983	0.09	-17.08
viawest.net	48,673	0.07	69,609	0.10	-30.52
mastak.ru	48,645	0.07	47,544	0.07	1.67
sivit.org	48,290	0.07	48,040	0.07	-0.11
ee.net	48,230	0.07	42,215	0.06	13.53
myregisteredsite.com	47,627	0.07	44,271	0.06	6.90
a.ns	47,575	0.07	38,960	0.06	21.34
inode.at	46,531	0.07	46,790	0.07	-1.18
hostmar.com	46,314	0.07	45,764	0.07	0.56
accelerated.de	46,114	0.07	46,393	0.07	-1.23
live-servers.net	45,925	0.07	46,107	0.07	-1.02
ecotel.net	45,862	0.07	44,227	0.06	3.04
keyweb.de	45,449	0.07	45,308	0.07	-0.32
servernap.com	45,353	0.07	45,358	0.07	-0.64
iomart.com	45,253	0.07	44,523	0.06	1.00
cnc-gd.net	45,223	0.07	36,623	0.05	22.70
combell.net	45,203	0.07	44,964	0.07	-0.10
datanet.hu	45,193	0.07	44,540	0.06	0.83
dn-s.nl	45,056	0.07	46,232	0.07	-3.16
webhosted.nl	45,022	0.07	31,387	0.05	42.54
atman.pl	44,736	0.06	38,179	0.06	16.44
liquidweb.com	44,495	0.06	41,883	0.06	5.57
gandi.net	44,082	0.06	52,956	0.08	-17.28
wedos.net	43,974	0.06	42,558	0.06	2.68
hix.nl	43,876	0.06	43,762	0.06	-0.37
ns1.serveriai.lt	43,597	0.06	43,024	0.06	0.69

* 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.