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	March 2020 Count	March 2020 %	February 2020 Count	February 2020 %	Growth %
Let's Encrypt	2,160,447	22.18	2,111,819	22.25	-0.32
COMODO CA Limited	1,411,135	14.49	1,431,460	15.08	-3.95
DigiCert	1,390,690	14.28	1,356,072	14.29	-0.07
Sectigo Limited	875,029	8.98	809,564	8.53	5.32
GlobalSign nv-sa	538,058	5.52	522,080	5.50	0.42
cPanel, Inc.	507,651	5.21	491,661	5.18	0.61
GoDaddy.com, Inc.	388,460	3.99	381,606	4.02	-0.81
Unknown	333,704	3.43	315,264	3.32	3.14
Amazon	190,569	1.96	181,690	1.91	2.20
Starfield Technologies, Inc.	185,315	1.90	179,407	1.89	0.65
CloudFlare, Inc.	102,649	1.05	97,596	1.03	2.48
Plesk	89,646	0.92	86,034	0.91	1.53
SecureCore	87,568	0.90	83,944	0.88	1.64
Google Trust Services	74,451	0.76	72,872	0.77	-0.45
SomeOrganization	73,361	0.75	70,795	0.75	0.97
none	70,057	0.72	67,270	0.71	1.47
Unizeto Technologies S.A.	67,551	0.69	50,864	0.54	29.40
Gehirn Inc.	66,391	0.68	63,510	0.67	1.86
ispgateway	61,631	0.63	61,203	0.64	-1.88
Microsoft Corporation	56,552	0.58	55,663	0.59	-1.01
TERENA	52,199	0.54	51,162	0.54	-0.59
Internet2	51,200	0.53	50,853	0.54	-1.90
DreamHost	41,628	0.43	39,672	0.42	2.24
Parallels	38,600	0.40	38,191	0.40	-1.52
GeoTrust Inc.	38,143	0.39	38,264	0.40	-2.87
Odin	36,932	0.38	36,205	0.38	-0.61
Entrust, Inc.	36,688	0.38	36,296	0.38	-1.51
Trustwave Holdings, Inc.	34,297	0.35	34,450	0.36	-2.99
Gandi	33,357	0.34	32,646	0.34	-0.44
home.pl S.A.	32,098	0.33	31,306	0.33	-0.10
Actalis S.p.A./03358520967	31,417	0.32	30,019	0.32	1.98
Webhosting	23,396	0.24	22,446	0.24	1.56
Cybertrust Japan Co., Ltd.	19,191	0.20	18,772	0.20	-0.39
SECOM Trust Systems CO.,LTD.	17,438	0.18	17,754	0.19	-4.30
QuoVadis Limited	17,403	0.18	17,125	0.18	-0.98
GoGetSSL	16,904	0.17	14,844	0.16	10.96
Apache HTTP Server	16,215	0.17	16,190	0.17	-2.41
Network Solutions L.L.C.	16,157	0.17	16,242	0.17	-3.07
TrustAsia Technologies, Inc.	15,524	0.16	13,916	0.15	8.70
Internet Widgits Pty Ltd	15,019	0.15	15,211	0.16	-3.79
Japan Registry Services Co., Ltd.	14,777	0.15	13,683	0.14	5.23
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	13,953	0.14	13,647	0.14	-0.38
WebSupport, s.r.o.	13,233	0.14	12,744	0.13	1.18
Trust Provider B.V.	10,357	0.11	10,143	0.11	-0.51
Caddy Self-Signed	10,211	0.10	9,868	0.10	0.82
Corporation Service Company	9,971	0.10	9,751	0.10	-0.36
SH	9,275	0.10	8,619	0.09	4.85
Acme Co	9,166	0.09	8,685	0.09	2.83
WEDOS Internet, a.s.	8,873	0.09	8,414	0.09	2.75
Default Company Ltd	8,811	0.09	7,681	0.08	11.77
World4You Internet Services GmbH	8,600	0.09	8,345	0.09	0.42
io.ua	6,684	0.07	6,654	0.07	-2.12
KAGOYA-JAPAN	6,239	0.06	5,882	0.06	3.35
The Trustico Group Ltd	6,099	0.06	6,218	0.07	-4.43
Test Self SSL Company	6,076	0.06	5,722	0.06	3.47
DOMENY.PL sp. z o.o	5,442	0.06	5,431	0.06	-2.36
StartCom Ltd.	5,393	0.06	5,455	0.06	-3.67
FASTVPS	5,212	0.05	5,102	0.05	-0.46
www.sprinthost.ru	4,950	0.05	4,627	0.05	4.24
XX	4,865	0.05	4,696	0.05	0.94
thawte, Inc.	4,600	0.05	4,736	0.05	-5.36
Comodo Limited	4,231	0.04	4,152	0.04	-0.71
SSL.com	4,189	0.04	4,209	0.04	-3.03
Dreamcommerce S.A.	4,074	0.04	3,980	0.04	-0.26
GeoTrust, Inc.	4,039	0.04	4,117	0.04	-4.41
National Institute of Informatics	3,743	0.04	3,684	0.04	-1.00
Rede Nacional de Ensino e Pesquisa - RNP	3,726	0.04	3,539	0.04	2.59
TAIWAN-CA	3,724	0.04	3,584	0.04	1.24
SwissSign AG	3,686	0.04	3,631	0.04	-1.09
Mirohost	3,519	0.04	3,383	0.04	1.35
T-Systems International GmbH	3,462	0.04	3,348	0.04	0.76
Buypass AS-983163327	3,057	0.03	2,995	0.03	-0.55
SSL Corporation	2,923	0.03	2,675	0.03	6.47
dhosting.pl Sp. z o.o.	2,876	0.03	2,715	0.03	3.22
Verisign	2,857	0.03	2,861	0.03	-2.70
N/A	2,747	0.03	1,870	0.02	43.13
HydrantID (Avalanche Cloud Corporation)	2,736	0.03	2,596	0.03	2.69
NetLock Kft.	2,722	0.03	2,646	0.03	0.24
Guardian Inc.	2,710	0.03	2,673	0.03	-1.21
DealerInspire	2,586	0.03	2,486	0.03	1.36
GMO CLOUD K.K.	2,580	0.03	2,433	0.03	3.32
o2switch	2,520	0.03	2,310	0.02	6.30
Unspecified	2,417	0.02	2,008	0.02	17.28
nazwa.pl sp. z o.o.	2,341	0.02	16,859	0.18	-86.47
Symantec Corporation	2,294	0.02	2,288	0.02	-2.31
MyCompany	2,206	0.02	2,213	0.02	-2.87
EUNETIC GmbH	2,156	0.02	2,230	0.02	-5.80
Basekit Ltd	2,132	0.02	1,989	0.02	4.44
Soluciones Corporativas IP, SL	2,058	0.02	1,957	0.02	2.47
WoSign CA Limited	2,037	0.02	2,145	0.02	-7.47
ONEsolution s.r.o.	2,019	0.02	1,925	0.02	2.20
SSL Server	1,963	0.02	1,961	0.02	-2.46
Globe Hosting, Inc.	1,958	0.02	1,908	0.02	-0.01
AC Camerfirma S.A.	1,905	0.02	1,885	0.02	-1.53
OVH	1,849	0.02	1,819	0.02	-0.96
Fasthosts Internet Limited	1,841	0.02	1,769	0.02	1.40
Comvive Servidores SL	1,837	0.02	1,817	0.02	-1.49
Greenhost	1,718	0.02	0	0.00	N/A
WoTrus CA Limited	1,712	0.02	1,578	0.02	5.71
Bitrix	1,660	0.02	1,534	0.02	5.44

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.