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 doesn't verify the signatures of the certificates it finds, it only uses the issuer Organization Name to uniquely identify the issuing CA.

CA	January 2019 Count	January 2019 %	December 2018 Count	December 2018 %	Growth %
COMODO CA Limited	1,247,861	29.41	1,219,565	30.05	-2.12
DigiCert	692,141	16.31	653,520	16.10	1.31
Let's Encrypt	619,842	14.61	570,998	14.07	3.84
GlobalSign nv-sa	311,415	7.34	300,442	7.40	-0.85
GoDaddy.com, Inc.	296,601	6.99	290,426	7.16	-2.31
cPanel, Inc.	125,010	2.95	113,310	2.79	5.54
Unknown	111,297	2.62	104,109	2.57	2.26
Amazon	83,922	1.98	79,867	1.97	0.52
Google Trust Services	54,332	1.28	53,028	1.31	-1.99
Starfield Technologies, Inc.	47,607	1.12	43,465	1.07	4.78
Internet2	31,934	0.75	30,693	0.76	-0.47
TERENA	30,714	0.72	30,083	0.74	-2.33
GeoTrust Inc.	28,549	0.67	33,999	0.84	-19.67
SomeOrganization	25,185	0.59	23,567	0.58	2.23
Entrust, Inc.	24,801	0.58	24,167	0.60	-1.83
Microsoft Corporation	24,432	0.58	22,707	0.56	2.93
ispgateway	24,244	0.57	22,995	0.57	0.86
Unizeto Technologies S.A.	23,506	0.55	22,467	0.55	0.08
Plesk	22,069	0.52	20,076	0.49	5.16
none	21,319	0.50	20,053	0.49	1.70
Gandi	21,046	0.50	20,719	0.51	-2.83
Parallels	19,359	0.46	18,827	0.46	-1.64
Trustwave Holdings, Inc.	15,556	0.37	14,310	0.35	3.99
Apache HTTP Server	14,541	0.34	14,498	0.36	-4.06
Odin	13,874	0.33	13,060	0.32	1.62
Network Solutions L.L.C.	13,652	0.32	13,471	0.33	-3.05
home.pl S.A.	12,964	0.31	12,604	0.31	-1.61
SecureCore	12,287	0.29	10,013	0.25	17.39
QuoVadis Limited	11,535	0.27	11,256	0.28	-1.97
Cybertrust Japan Co., Ltd.	10,919	0.26	10,590	0.26	-1.37
NN.RU	8,883	0.21	8,883	0.22	-4.34
Internet Widgits Pty Ltd	8,253	0.19	8,087	0.20	-2.38
Actalis S.p.A./03358520967	6,379	0.15	5,809	0.14	5.05
SSL.com	5,868	0.14	5,780	0.14	-2.88
Gehirn Inc.	5,711	0.13	3,899	0.10	40.12
StartCom Ltd.	5,578	0.13	5,691	0.14	-6.24
nazwa.pl sp. z o.o.	5,464	0.13	5,186	0.13	0.79
thawte, Inc.	5,144	0.12	6,489	0.16	-24.17
Corporation Service Company	5,083	0.12	4,935	0.12	-1.47
io.ua	4,949	0.12	4,927	0.12	-3.91
Webhosting	4,923	0.12	4,450	0.11	5.83
Trust Provider B.V.	4,469	0.11	4,366	0.11	-2.08
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	4,229	0.10	3,704	0.09	9.22
DreamHost	4,168	0.10	2,911	0.07	36.97
The Trustico Group Ltd	4,121	0.10	3,970	0.10	-0.70
SECOM Trust Systems CO.,LTD.	4,078	0.10	3,516	0.09	10.95
WebSupport, s.r.o.	4,055	0.10	3,835	0.09	1.15
Hosting Ukraine LLC	3,806	0.09	3,578	0.09	1.76
Nijimo, Inc.	3,569	0.08	3,376	0.08	1.13
TrustAsia Technologies, Inc.	3,557	0.08	3,407	0.08	-0.13
GeoTrust, Inc.	3,474	0.08	3,492	0.09	-4.83
Symantec Corporation	3,391	0.08	4,044	0.10	-19.79
Japan Registry Services Co., Ltd.	3,376	0.08	3,122	0.08	3.44
Pizza-Taxi.de GmbH / CA	3,306	0.08	3,297	0.08	-4.08
HydrantID (Avalanche Cloud Corporation)	3,026	0.07	3,291	0.08	-12.04
KDDI Web Communications Inc.	2,958	0.07	3,069	0.08	-7.80
DOMENY.PL sp. z o.o	2,796	0.07	2,678	0.07	-0.12
Default Company Ltd	2,250	0.05	2,088	0.05	3.08
SH	2,220	0.05	2,070	0.05	2.59
National Institute of Informatics	2,149	0.05	2,374	0.06	-13.41
WEDOS Internet, a.s.	2,046	0.05	1,897	0.05	3.17
Comodo Limited	2,009	0.05	1,917	0.05	0.25
CloudFlare, Inc.	1,988	0.05	896	0.02	112.25
T-Systems International GmbH	1,865	0.04	1,783	0.04	0.06
Rede Nacional de Ensino e Pesquisa - RNP	1,830	0.04	1,726	0.04	1.42
KAGOYA-JAPAN	1,806	0.04	1,711	0.04	0.97
SwissSign AG	1,794	0.04	1,696	0.04	1.19
TAIWAN-CA	1,768	0.04	1,743	0.04	-2.97
Test Self SSL Company	1,751	0.04	1,666	0.04	0.54
XX	1,673	0.04	1,618	0.04	-1.09
Government of Korea	1,628	0.04	1,645	0.04	-5.33
WoSign CA Limited	1,543	0.04	1,540	0.04	-4.15
Acme Co	1,406	0.03	1,116	0.03	20.52
AC Camerfirma S.A.	1,405	0.03	1,367	0.03	-1.68
World4You Internet Services GmbH	1,344	0.03	1,164	0.03	10.45
MyCompany	1,319	0.03	1,008	0.02	25.17
NetLock Kft.	1,314	0.03	1,234	0.03	1.86
www.sprinthost.ru	1,283	0.03	1,166	0.03	5.26
AffirmTrust	1,210	0.03	1,165	0.03	-0.64
UIC	1,169	0.03	1,169	0.03	-4.34
Mirohost	1,166	0.03	1,096	0.03	1.77
EUNETIC GmbH	1,153	0.03	1,101	0.03	0.18
Verisign	1,084	0.03	1,053	0.03	-1.52
Buypass AS-983163327	1,069	0.03	1,036	0.03	-1.29
Soluciones Corporativas IP, SL	948	0.02	797	0.02	13.78
CertCenter AG	899	0.02	778	0.02	10.54
dhosting.pl Sp. z o.o.	885	0.02	833	0.02	1.63
Thawte, Inc.	860	0.02	877	0.02	-6.19
KEYNECTIS	839	0.02	900	0.02	-10.82
Comvive Servidores SL	810	0.02	741	0.02	4.57
U.S. Government	785	0.02	790	0.02	-4.95
Equifax (Geotrust)	739	0.02	755	0.02	-6.37
Globe Hosting, Inc.	715	0.02	674	0.02	1.48
FIDUCIA & GAD IT AG	683	0.02	686	0.02	-4.76
Beijing Knownsec Information Technology Co., Ltd	666	0.02	654	0.02	-2.58
OVH	645	0.02	598	0.01	3.18
DHIMYOTIS	603	0.01	580	0.01	-0.55
TBS INTERNET	601	0.01	592	0.01	-2.89
KPN B.V.	562	0.01	557	0.01	-3.48
Dreamcommerce S.A.	538	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.