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	August 2019 Count	August 2019 %	July 2019 Count	July 2019 %	Growth %
COMODO CA Limited	1,466,912	20.53	1,414,602	21.67	-5.26
Let's Encrypt	1,400,841	19.61	1,225,602	18.78	4.43
DigiCert	1,103,706	15.45	1,027,892	15.75	-1.90
GlobalSign nv-sa	443,922	6.21	416,671	6.38	-2.66
Sectigo Limited	386,833	5.41	327,914	5.02	7.78
cPanel, Inc.	318,352	4.46	278,642	4.27	4.39
GoDaddy.com, Inc.	300,028	4.20	273,169	4.19	0.35
Unknown	217,738	3.05	195,313	2.99	1.86
Amazon	142,636	2.00	126,106	1.93	3.34
Starfield Technologies, Inc.	109,985	1.54	102,886	1.58	-2.33
CloudFlare, Inc.	65,112	0.91	57,228	0.88	3.95
Google Trust Services	64,892	0.91	63,128	0.97	-6.08
Plesk	57,108	0.80	49,569	0.76	5.26
SecureCore	49,810	0.70	41,525	0.64	9.59
SomeOrganization	49,706	0.70	44,307	0.68	2.50
none	45,846	0.64	40,641	0.62	3.07
ispgateway	45,603	0.64	41,091	0.63	1.40
Internet2	43,835	0.61	41,409	0.63	-3.28
TERENA	41,991	0.59	39,297	0.60	-2.37
Unizeto Technologies S.A.	41,484	0.58	36,439	0.56	4.01
Gehirn Inc.	36,147	0.51	29,488	0.45	12.00
GeoTrust Inc.	34,206	0.48	32,158	0.49	-2.82
Trustwave Holdings, Inc.	32,665	0.46	29,762	0.46	0.28
Entrust, Inc.	31,960	0.45	30,842	0.47	-5.32
Parallels	31,503	0.44	28,980	0.44	-0.68
Gandi	28,543	0.40	26,714	0.41	-2.38
Odin	26,443	0.37	23,661	0.36	2.11
DreamHost	22,910	0.32	18,940	0.29	10.52
home.pl S.A.	22,088	0.31	19,996	0.31	0.92
Microsoft Corporation	20,550	0.29	25,586	0.39	-26.62
Actalis S.p.A./03358520967	18,233	0.26	15,307	0.23	8.83
Network Solutions L.L.C.	16,555	0.23	15,438	0.24	-2.02
Apache HTTP Server	15,405	0.22	15,224	0.23	-7.55
Cybertrust Japan Co., Ltd.	15,296	0.21	14,560	0.22	-4.02
QuoVadis Limited	14,709	0.21	14,100	0.22	-4.69
Webhosting	14,214	0.20	12,169	0.19	6.72
SECOM Trust Systems CO.,LTD.	14,065	0.20	12,524	0.19	2.61
Internet Widgits Pty Ltd	12,428	0.17	11,809	0.18	-3.85
nazwa.pl sp. z o.o.	12,330	0.17	11,068	0.17	1.78
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	11,414	0.16	11,020	0.17	-5.37
Caddy Self-Signed	9,944	0.14	2,458	0.04	269.62
WebSupport, s.r.o.	8,807	0.12	7,769	0.12	3.57
TrustAsia Technologies, Inc.	8,310	0.12	7,020	0.11	8.15
Japan Registry Services Co., Ltd.	8,241	0.12	7,735	0.12	-2.66
Trust Provider B.V.	7,529	0.11	6,817	0.10	0.91
Corporation Service Company	7,339	0.10	6,895	0.11	-2.75
Hosting Ukraine LLC	7,064	0.10	6,451	0.10	0.05
io.ua	6,225	0.09	6,134	0.09	-7.28
SH	5,643	0.08	4,796	0.07	7.50
The Trustico Group Ltd	5,586	0.08	5,226	0.08	-2.34
StartCom Ltd.	5,579	0.08	5,479	0.08	-6.97
WEDOS Internet, a.s.	5,327	0.07	4,584	0.07	6.17
World4You Internet Services GmbH	4,878	0.07	4,089	0.06	8.99
thawte, Inc.	4,828	0.07	4,656	0.07	-5.26
Acme Co	4,746	0.07	4,011	0.06	8.11
Default Company Ltd	4,539	0.06	4,045	0.06	2.52
GeoTrust, Inc.	3,878	0.05	3,775	0.06	-6.14
KAGOYA-JAPAN	3,840	0.05	3,396	0.05	3.31
Test Self SSL Company	3,623	0.05	3,218	0.05	2.86
Pizza-Taxi.de GmbH / CA	3,560	0.05	3,508	0.05	-7.28
HydrantID (Avalanche Cloud Corporation)	3,554	0.05	3,511	0.05	-7.52
Comodo Limited	3,546	0.05	3,146	0.05	2.98
XX	3,348	0.05	3,157	0.05	-3.11
National Institute of Informatics	3,038	0.04	2,900	0.04	-4.29
Dreamcommerce S.A.	3,038	0.04	2,811	0.04	-1.26
SwissSign AG	3,015	0.04	2,564	0.04	7.44
DOMENY.PL sp. z o.o	2,982	0.04	2,721	0.04	0.13
www.sprinthost.ru	2,971	0.04	2,575	0.04	5.42
TAIWAN-CA	2,818	0.04	2,628	0.04	-2.03
Rede Nacional de Ensino e Pesquisa - RNP	2,792	0.04	2,615	0.04	-2.45
T-Systems International GmbH	2,672	0.04	2,395	0.04	1.93
Symantec Corporation	2,498	0.03	2,560	0.04	-10.85
Mirohost	2,432	0.03	2,179	0.03	1.97
Buypass AS-983163327	2,201	0.03	1,957	0.03	2.76
WoSign CA Limited	2,110	0.03	1,976	0.03	-2.44
NetLock Kft.	2,036	0.03	1,876	0.03	-0.84
Guardian Inc.	1,995	0.03	1,922	0.03	-5.16
Verisign	1,971	0.03	1,755	0.03	2.61
EUNETIC GmbH	1,966	0.03	1,804	0.03	-0.43
SSL.com	1,944	0.03	1,846	0.03	-3.78
Nijimo, Inc.	1,924	0.03	2,099	0.03	-16.25
MyCompany	1,816	0.03	1,805	0.03	-8.08
GoGetSSL	1,725	0.02	1,375	0.02	14.62
AC Camerfirma S.A.	1,725	0.02	1,631	0.02	-3.37
dhosting.pl Sp. z o.o.	1,707	0.02	1,563	0.02	-0.22
CertCenter AG	1,690	0.02	1,409	0.02	9.59
SSL Server	1,547	0.02	1,200	0.02	17.78
GMO CLOUD K.K.	1,488	0.02	1,254	0.02	8.41
DealerInspire	1,417	0.02	1,163	0.02	11.32
OVH	1,415	0.02	1,233	0.02	4.85
Soluciones Corporativas IP, SL	1,413	0.02	2,403	0.04	-46.28
Government of Korea	1,322	0.02	1,373	0.02	-12.03
N/A	1,319	0.02	1,151	0.02	4.70
Globe Hosting, Inc.	1,311	0.02	1,190	0.02	0.66
WoTrus CA Limited	1,307	0.02	1,146	0.02	4.20
o2switch	1,290	0.02	0	0.00	N/A
SSL Corporation	1,287	0.02	1,112	0.02	5.74
Comvive Servidores SL	1,239	0.02	1,108	0.02	2.17
KDDI Web Communications Inc.	1,209	0.02	1,449	0.02	-23.77
Fasthosts Internet Limited	1,189	0.02	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.