Report Description

This report, much like our original certs and CAs report, focuses on issuers of SSL enabling certificates found on web servers. Unlike our original report, however, this report has a couple of key differences to it:

• Reports on top 100 CAs. The original report only paid attention to the major CAs at the time the report was produced. This report lists the top 100 CAs for the month. You will find here many self-signing organizations such as universities, telecommunications firms, etc.
• Uses issuer name as identifier. Our original report only counted a certificate towards an organization if we were able to prove, by virtue of verifying the key, that the organization in question actually signed the certificate. This had a notable problem with it - we don't always have the public key of the CA. In at least one case, a CA doesn't make their public key available unless you sign a license agreement.

  This report doesn't have that problem, since it only uses the issuer Organization Name to uniquely identify the issuing CA.

CA	February 2018 Count	February 2018 %	January 2018 Count	January 2018 %	Growth %
GoDaddy.com, Inc.	805,222	19.18	803,842	18.77	2.18
COMODO CA Limited	713,405	17.00	748,870	17.49	-2.83
DigiCert	598,681	14.26	514,168	12.01	18.77
GeoTrust Inc.	350,398	8.35	427,512	9.98	-16.40
GlobalSign nv-sa	321,685	7.66	324,438	7.58	1.14
Let's Encrypt	294,324	7.01	290,912	6.79	3.20
Gandi	100,880	2.40	100,999	2.36	1.88
Symantec Corporation	80,327	1.91	123,349	2.88	-33.57
cPanel, Inc.	79,109	1.88	81,465	1.90	-0.95
Unknown	76,978	1.83	77,013	1.80	1.96
Amazon	65,715	1.57	66,152	1.55	1.33
thawte, Inc.	63,301	1.51	72,297	1.69	-10.69
Starfield Technologies, Inc.	58,255	1.39	57,423	1.34	3.48
Microsoft Corporation	43,481	1.04	44,038	1.03	0.71
Google Inc	38,271	0.91	37,987	0.89	2.76
Internet2	30,468	0.73	30,859	0.72	0.71
TERENA	28,211	0.67	28,476	0.67	1.05
Entrust, Inc.	24,565	0.59	25,188	0.59	-0.52
Parallels	20,399	0.49	21,229	0.50	-1.99
Unizeto Technologies S.A.	19,390	0.46	19,442	0.45	1.73
Trustwave Holdings, Inc.	18,882	0.45	19,568	0.46	-1.57
Network Solutions L.L.C.	17,879	0.43	18,166	0.42	0.39
none	17,847	0.43	18,135	0.42	0.38
SomeOrganization	17,622	0.42	17,722	0.41	1.43
ispgateway	17,564	0.42	17,582	0.41	1.90
Apache HTTP Server	14,313	0.34	729	0.02	1902.69
SecureCore	12,516	0.30	12,305	0.29	3.75
Odin	11,033	0.26	11,159	0.26	0.85
QuoVadis Limited	10,360	0.25	10,302	0.24	2.58
Plesk	9,899	0.24	9,210	0.22	9.63
NN.RU	8,883	0.21	8,883	0.21	2.00
Cybertrust Japan Co., Ltd.	8,755	0.21	8,707	0.20	2.56
home.pl S.A.	8,743	0.21	8,311	0.19	7.30
SSL.com	7,905	0.19	7,978	0.19	1.07
StartCom Ltd.	7,192	0.17	7,731	0.18	-5.11
Hostpoint AG	6,709	0.16	6,687	0.16	2.34
Internet Widgits Pty Ltd	6,531	0.16	6,615	0.15	0.71
GeoTrust, Inc.	6,135	0.15	6,533	0.15	-4.21
Google Trust Services	5,337	0.13	5,300	0.12	2.71
io.ua	4,810	0.11	4,804	0.11	2.13
nazwa.pl sp. z o.o.	4,526	0.11	4,591	0.11	0.56
HydrantID (Avalanche Cloud Corporation)	4,471	0.11	4,592	0.11	-0.69
CloudFlare, Inc.	3,759	0.09	3,759	0.09	2.00
Corporation Service Company	3,618	0.09	3,527	0.08	4.63
SECOM Trust Systems CO.,LTD.	3,310	0.08	3,394	0.08	-0.52
Pizza-Taxi.de GmbH / CA	3,230	0.08	3,229	0.08	2.03
Actalis S.p.A./03358520967	3,222	0.08	3,181	0.07	3.32
Trust Provider B.V.	3,155	0.08	3,068	0.07	4.89
Comodo Limited	3,155	0.08	3,440	0.08	-6.45
KDDI Web Communications Inc.	3,138	0.07	3,138	0.07	2.00
TrustAsia Technologies, Inc.	3,066	0.07	925	0.02	238.10
WebSupport, s.r.o.	2,767	0.07	2,753	0.06	2.52
National Institute of Informatics	2,308	0.05	2,321	0.05	1.43
Hosting Ukraine LLC	2,283	0.05	2,311	0.05	0.77
Government of Korea	2,116	0.05	2,204	0.05	-2.07
Default Company Ltd	2,091	0.05	2,063	0.05	3.39
Webhosting	2,021	0.05	1,963	0.05	5.02
DOMENY.PL sp. z o.o	1,927	0.05	1,941	0.05	1.27
Nijimo, Inc.	1,893	0.05	1,590	0.04	21.44
WoSign CA Limited	1,886	0.04	1,933	0.05	-0.48
TAIWAN-CA	1,770	0.04	1,763	0.04	2.41
Japan Registry Services Co., Ltd.	1,689	0.04	1,521	0.04	13.27
Verisign	1,664	0.04	1,757	0.04	-3.40
Thawte, Inc.	1,664	0.04	1,781	0.04	-4.70
T-Systems International GmbH	1,657	0.04	1,701	0.04	-0.64
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	1,576	0.04	1,410	0.03	14.01
Rede Nacional de Ensino e Pesquisa - RNP	1,504	0.04	1,486	0.03	3.24
SwissSign AG	1,400	0.03	1,362	0.03	4.85
DreamHost	1,319	0.03	11,473	0.27	-88.27
KEYNECTIS	1,248	0.03	1,375	0.03	-7.42
NetLock Kft.	1,240	0.03	1,263	0.03	0.14
EUNETIC GmbH	1,227	0.03	1,263	0.03	-0.91
Test Self SSL Company	1,206	0.03	1,214	0.03	1.33
UIC	1,177	0.03	1,177	0.03	2.00
AC Camerfirma S.A.	1,177	0.03	1,161	0.03	3.41
WEDOS Internet, a.s.	1,166	0.03	1,163	0.03	2.27
Equifax (Geotrust)	1,127	0.03	1,305	0.03	-11.91
AlphaSSL	1,080	0.03	1,400	0.03	-21.31
Dreamcommerce S.A.	1,074	0.03	1,125	0.03	-2.62
U.S. Government	1,023	0.02	1,059	0.02	-1.47
SH	937	0.02	970	0.02	-1.47
XX	886	0.02	971	0.02	-6.93
AffirmTrust	828	0.02	793	0.02	6.50
Globe Hosting, Inc.	766	0.02	834	0.02	-6.31
Buypass AS-983163327	764	0.02	759	0.02	2.67
Internet Invest	677	0.02	684	0.02	0.96
Intermediate Certificate	668	0.02	650	0.02	4.83
TBS INTERNET	666	0.02	680	0.02	-0.10
www.sprinthost.ru	634	0.02	636	0.01	1.68
CAcert Inc.	627	0.01	636	0.01	0.56
KAGOYA-JAPAN	562	0.01	0	0.00	N/A
Beijing Knownsec Information Technology Co., Ltd	561	0.01	536	0.01	6.76
Zimbra Collaboration Server	552	0.01	568	0.01	-0.87
PCextreme BV	497	0.01	488	0.01	3.88
FNMT-RCM	487	0.01	527	0.01	-5.74
CertCenter AG	484	0.01	446	0.01	10.69
Root CA	478	0.01	503	0.01	-3.07
OVH	461	0.01	459	0.01	2.45
Comvive Servidores SL	449	0.01	0	0.00	N/A
ICP-Brasil	441	0.01	462	0.01	-2.63

Note: Readers are cautioned that the Growth percentages are based on a CA's market share penetration rather than the absolute number of certificates we detected. Thus, it is possible for the number of certificates to increase, while the growth is actually a negative value.