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	February 2020 Count	February 2020 %	January 2020 Count	January 2020 %	Growth %
Let's Encrypt	2,111,819	22.25	0	NaN	N/A
COMODO CA Limited	1,431,460	15.08	0	NaN	N/A
DigiCert	1,356,072	14.29	0	NaN	N/A
Sectigo Limited	809,564	8.53	0	NaN	N/A
GlobalSign nv-sa	522,080	5.50	0	NaN	N/A
cPanel, Inc.	491,661	5.18	0	NaN	N/A
GoDaddy.com, Inc.	381,606	4.02	0	NaN	N/A
Unknown	315,264	3.32	0	NaN	N/A
Amazon	181,690	1.91	0	NaN	N/A
Starfield Technologies, Inc.	179,407	1.89	0	NaN	N/A
CloudFlare, Inc.	97,596	1.03	0	NaN	N/A
Plesk	86,034	0.91	0	NaN	N/A
SecureCore	83,944	0.88	0	NaN	N/A
Google Trust Services	72,872	0.77	0	NaN	N/A
SomeOrganization	70,795	0.75	0	NaN	N/A
none	67,270	0.71	0	NaN	N/A
Gehirn Inc.	63,510	0.67	0	NaN	N/A
ispgateway	61,203	0.64	0	NaN	N/A
Microsoft Corporation	55,663	0.59	0	NaN	N/A
TERENA	51,162	0.54	0	NaN	N/A
Unizeto Technologies S.A.	50,864	0.54	0	NaN	N/A
Internet2	50,853	0.54	0	NaN	N/A
DreamHost	39,672	0.42	0	NaN	N/A
GeoTrust Inc.	38,264	0.40	0	NaN	N/A
Parallels	38,191	0.40	0	NaN	N/A
Entrust, Inc.	36,296	0.38	0	NaN	N/A
Odin	36,205	0.38	0	NaN	N/A
Trustwave Holdings, Inc.	34,450	0.36	0	NaN	N/A
Gandi	32,646	0.34	0	NaN	N/A
home.pl S.A.	31,306	0.33	0	NaN	N/A
Actalis S.p.A./03358520967	30,019	0.32	0	NaN	N/A
Webhosting	22,446	0.24	0	NaN	N/A
Cybertrust Japan Co., Ltd.	18,772	0.20	0	NaN	N/A
SECOM Trust Systems CO.,LTD.	17,754	0.19	0	NaN	N/A
QuoVadis Limited	17,125	0.18	0	NaN	N/A
nazwa.pl sp. z o.o.	16,859	0.18	0	NaN	N/A
Network Solutions L.L.C.	16,242	0.17	0	NaN	N/A
Apache HTTP Server	16,190	0.17	0	NaN	N/A
Internet Widgits Pty Ltd	15,211	0.16	0	NaN	N/A
GoGetSSL	14,844	0.16	0	NaN	N/A
TrustAsia Technologies, Inc.	13,916	0.15	0	NaN	N/A
Japan Registry Services Co., Ltd.	13,683	0.14	0	NaN	N/A
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	13,647	0.14	0	NaN	N/A
WebSupport, s.r.o.	12,744	0.13	0	NaN	N/A
Trust Provider B.V.	10,143	0.11	0	NaN	N/A
Caddy Self-Signed	9,868	0.10	0	NaN	N/A
Corporation Service Company	9,751	0.10	0	NaN	N/A
Acme Co	8,685	0.09	0	NaN	N/A
SH	8,619	0.09	0	NaN	N/A
WEDOS Internet, a.s.	8,414	0.09	0	NaN	N/A
World4You Internet Services GmbH	8,345	0.09	0	NaN	N/A
Default Company Ltd	7,681	0.08	0	NaN	N/A
io.ua	6,654	0.07	0	NaN	N/A
The Trustico Group Ltd	6,218	0.07	0	NaN	N/A
KAGOYA-JAPAN	5,882	0.06	0	NaN	N/A
Test Self SSL Company	5,722	0.06	0	NaN	N/A
StartCom Ltd.	5,455	0.06	0	NaN	N/A
DOMENY.PL sp. z o.o	5,431	0.06	0	NaN	N/A
FASTVPS	5,102	0.05	0	NaN	N/A
thawte, Inc.	4,736	0.05	0	NaN	N/A
XX	4,696	0.05	0	NaN	N/A
www.sprinthost.ru	4,627	0.05	0	NaN	N/A
SSL.com	4,209	0.04	0	NaN	N/A
Comodo Limited	4,152	0.04	0	NaN	N/A
GeoTrust, Inc.	4,117	0.04	0	NaN	N/A
Dreamcommerce S.A.	3,980	0.04	0	NaN	N/A
Pizza-Taxi.de GmbH / CA	3,779	0.04	0	NaN	N/A
National Institute of Informatics	3,684	0.04	0	NaN	N/A
SwissSign AG	3,631	0.04	0	NaN	N/A
TAIWAN-CA	3,584	0.04	0	NaN	N/A
Rede Nacional de Ensino e Pesquisa - RNP	3,539	0.04	0	NaN	N/A
Mirohost	3,383	0.04	0	NaN	N/A
T-Systems International GmbH	3,348	0.04	0	NaN	N/A
Buypass AS-983163327	2,995	0.03	0	NaN	N/A
Verisign	2,861	0.03	0	NaN	N/A
dhosting.pl Sp. z o.o.	2,715	0.03	0	NaN	N/A
SSL Corporation	2,675	0.03	0	NaN	N/A
Guardian Inc.	2,673	0.03	0	NaN	N/A
NetLock Kft.	2,646	0.03	0	NaN	N/A
HydrantID (Avalanche Cloud Corporation)	2,596	0.03	0	NaN	N/A
DealerInspire	2,486	0.03	0	NaN	N/A
GMO CLOUD K.K.	2,433	0.03	0	NaN	N/A
o2switch	2,310	0.02	0	NaN	N/A
Symantec Corporation	2,288	0.02	0	NaN	N/A
EUNETIC GmbH	2,230	0.02	0	NaN	N/A
MyCompany	2,213	0.02	0	NaN	N/A
WoSign CA Limited	2,145	0.02	0	NaN	N/A
Unspecified	2,008	0.02	0	NaN	N/A
Basekit Ltd	1,989	0.02	0	NaN	N/A
SSL Server	1,961	0.02	0	NaN	N/A
Soluciones Corporativas IP, SL	1,957	0.02	0	NaN	N/A
ONEsolution s.r.o.	1,925	0.02	0	NaN	N/A
Globe Hosting, Inc.	1,908	0.02	0	NaN	N/A
AC Camerfirma S.A.	1,885	0.02	0	NaN	N/A
N/A	1,870	0.02	0	NaN	N/A
OVH	1,819	0.02	0	NaN	N/A
Comvive Servidores SL	1,817	0.02	0	NaN	N/A
Fasthosts Internet Limited	1,769	0.02	0	NaN	N/A
WoTrus CA Limited	1,578	0.02	0	NaN	N/A
Bitrix	1,534	0.02	0	NaN	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.