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 2017 Count	February 2017 %	January 2017 Count	January 2017 %	Growth %
DigiCert	836,892	23.16	608,993	18.30	26.53
GoDaddy.com, Inc.	647,584	17.92	635,650	19.10	-6.20
COMODO CA Limited	503,405	13.93	495,942	14.91	-6.54
GeoTrust Inc.	419,295	11.60	419,453	12.61	-7.96
GlobalSign nv-sa	240,129	6.64	231,607	6.96	-4.54
Symantec Corporation	119,022	3.29	123,772	3.72	-11.46
Gandi	92,742	2.57	91,638	2.75	-6.82
Let's Encrypt	91,606	2.53	75,751	2.28	11.34
thawte, Inc.	72,927	2.02	73,015	2.19	-8.04
Starfield Technologies, Inc.	44,535	1.23	43,502	1.31	-5.74
Unizeto Technologies S.A.	34,518	0.96	34,121	1.03	-6.86
Microsoft Corporation	34,468	0.95	33,805	1.02	-6.12
Unknown	31,765	0.88	30,097	0.90	-2.83
StartCom Ltd.	30,051	0.83	33,187	1.00	-16.63
Internet2	29,245	0.81	28,878	0.87	-6.76
Amazon	28,693	0.79	18,511	0.56	42.72
Entrust, Inc.	26,087	0.72	25,963	0.78	-7.49
TERENA	24,345	0.67	24,140	0.73	-7.15
cPanel, Inc.	21,009	0.58	17,397	0.52	11.19
Network Solutions L.L.C.	20,854	0.58	20,945	0.63	-8.33
Google Inc	18,099	0.50	16,520	0.50	0.87
Parallels	17,590	0.49	17,582	0.53	-7.89
GeoTrust, Inc.	13,101	0.36	15,071	0.45	-19.96
Trustwave Holdings, Inc.	12,682	0.35	12,623	0.38	-7.50
SomeOrganization	12,195	0.34	11,737	0.35	-4.34
QuoVadis Limited	8,637	0.24	8,426	0.25	-5.62
none	8,451	0.23	7,800	0.23	-0.24
Verizon Enterprise Solutions	7,530	0.21	7,842	0.24	-11.59
Cybertrust Japan Co., Ltd.	6,594	0.18	6,416	0.19	-5.37
Odin	5,661	0.16	5,177	0.16	0.68
WoSign CA Limited	5,595	0.15	5,645	0.17	-8.74
DreamHost	5,591	0.15	5,211	0.16	-1.21
SecureCore	4,143	0.11	3,760	0.11	1.45
Comodo Limited	4,075	0.11	4,115	0.12	-8.82
Verisign	3,610	0.10	4,149	0.12	-19.89
SECOM Trust Systems CO.,LTD.	3,558	0.10	3,563	0.11	-8.06
Thawte, Inc.	3,416	0.09	3,852	0.12	-18.35
ispgateway	3,320	0.09	3,287	0.10	-7.00
Internet Widgits Pty Ltd	3,249	0.09	2,950	0.09	1.40
Corporation Service Company	2,937	0.08	2,946	0.09	-8.21
nazwa.pl sp. z o.o.	2,840	0.08	2,738	0.08	-4.50
Hostpoint GmbH	2,745	0.08	2,410	0.07	4.87
home.pl S.A.	2,721	0.08	2,278	0.07	9.98
KDDI Web Communications Inc.	2,536	0.07	2,493	0.07	-6.34
CloudFlare, Inc.	2,201	0.06	2,134	0.06	-5.04
National Institute of Informatics	2,070	0.06	2,027	0.06	-5.98
AlphaSSL	2,054	0.06	2,209	0.07	-14.39
Trust Provider B.V.	1,951	0.05	1,664	0.05	7.95
Government of Korea	1,939	0.05	1,975	0.06	-9.61
SSL.com	1,871	0.05	1,684	0.05	2.30
T-Systems International GmbH	1,721	0.05	1,720	0.05	-7.88
Equifax (Geotrust)	1,640	0.05	1,744	0.05	-13.42
TAIWAN-CA	1,462	0.04	1,414	0.04	-4.80
Pizza-Taxi.de GmbH / CA	1,422	0.04	1,249	0.04	4.82
DOMENY.PL sp. z o.o	1,403	0.04	1,352	0.04	-4.46
Volusion, Inc.	1,372	0.04	1,504	0.05	-16.01
EUNETIC GmbH	1,238	0.03	1,228	0.04	-7.18
UIC	1,162	0.03	1,159	0.03	-7.69
U.S. Government	1,141	0.03	1,168	0.04	-10.06
SwissSign AG	1,112	0.03	1,012	0.03	1.17
KEYNECTIS	1,100	0.03	1,059	0.03	-4.36
NetLock Kft.	998	0.03	970	0.03	-5.27
Plesk	977	0.03	594	0.02	51.44
Trend Micro Inc	928	0.03	980	0.03	-12.81
Rede Nacional de Ensino e Pesquisa - RNP	867	0.02	1,059	0.03	-24.62
WebSupport, s.r.o.	830	0.02	765	0.02	-0.11
CAcert Inc.	764	0.02	804	0.02	-12.51
Intermediate Certificate	729	0.02	894	0.03	-24.92
Dreamcommerce S.A.	701	0.02	657	0.02	-1.76
Actalis S.p.A./03358520967	694	0.02	627	0.02	1.91
Root CA	662	0.02	663	0.02	-8.07
Zimbra Collaboration Server	629	0.02	621	0.02	-6.74
Comodo CA Limited	616	0.02	657	0.02	-13.67
TBS INTERNET	614	0.02	603	0.02	-6.25
FNMT-RCM	606	0.02	620	0.02	-10.01
AC Camerfirma S.A.	603	0.02	534	0.02	3.97
Globe Hosting, Inc.	592	0.02	587	0.02	-7.14
ICP-Brasil	561	0.02	527	0.02	-1.99
Thawte	559	0.02	581	0.02	-11.41
Hosting Ukraine LLC	527	0.01	438	0.01	10.78
Buypass AS-983163327	526	0.01	484	0.01	0.06
KPN Corporate Market BV	511	0.01	527	0.02	-10.72
ACCV	503	0.01	505	0.02	-8.29
Japan Registry Services Co., Ltd.	490	0.01	409	0.01	10.31
SWsoft, Inc.	461	0.01	461	0.01	-7.93
XX	452	0.01	399	0.01	4.30
Default Company Ltd	446	0.01	420	0.01	-2.23
Parallels, Inc.	440	0.01	492	0.01	-17.66
WEDOS Internet, a.s.	414	0.01	365	0.01	4.43
GANDI SAS	414	0.01	467	0.01	-18.38
FIDUCIA & GAD IT AG	373	0.01	377	0.01	-8.91
Universitaet Stuttgart	355	0.01	348	0.01	-6.08
Firstserver, Inc	349	0.01	360	0.01	-10.74
Test Self SSL Company	340	0.01	292	0.01	7.21
Apache HTTP Server	330	0.01	315	0.01	-3.54
CrossTrust	323	0.01	329	0.01	-9.61
Snake Oil, Ltd	320	0.01	342	0.01	-13.85
Yandex LLC	319	0.01	313	0.01	-6.16
Dell Inc.	285	0.01	283	0.01	-7.28
HydrantID (Avalanche Cloud Corporation)	284	0.01	0	0.00	N/A

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.