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 2017 Count	August 2017 %	July 2017 Count	July 2017 %	Growth %
DigiCert	4,156,140	56.66	3,478,968	53.10	6.70
GoDaddy.com, Inc.	709,156	9.67	689,705	10.53	-8.17
COMODO CA Limited	607,056	8.28	587,771	8.97	-7.75
GeoTrust Inc.	425,847	5.81	421,810	6.44	-9.83
GlobalSign nv-sa	281,381	3.84	272,053	4.15	-7.62
Let's Encrypt	181,499	2.47	164,666	2.51	-1.55
Symantec Corporation	126,251	1.72	124,844	1.91	-9.68
Gandi	96,847	1.32	96,043	1.47	-9.94
thawte, Inc.	74,268	1.01	72,025	1.10	-7.90
Starfield Technologies, Inc.	49,230	0.67	47,669	0.73	-7.76
Unknown	48,463	0.66	44,130	0.67	-1.92
cPanel, Inc.	46,659	0.64	42,066	0.64	-0.93
Amazon	45,752	0.62	43,593	0.67	-6.26
Microsoft Corporation	38,134	0.52	37,257	0.57	-8.58
Internet2	30,279	0.41	29,854	0.46	-9.41
Google Inc	28,013	0.38	25,963	0.40	-3.63
TERENA	26,395	0.36	25,809	0.39	-8.66
Entrust, Inc.	23,467	0.32	23,204	0.35	-9.67
Network Solutions L.L.C.	19,651	0.27	19,544	0.30	-10.20
Parallels	18,891	0.26	18,172	0.28	-7.15
StartCom Ltd.	18,482	0.25	18,143	0.28	-9.02
Trustwave Holdings, Inc.	16,631	0.23	15,922	0.24	-6.71
SomeOrganization	14,346	0.20	13,794	0.21	-7.11
Unizeto Technologies S.A.	14,056	0.19	13,393	0.20	-6.26
none	12,367	0.17	11,367	0.17	-2.83
QuoVadis Limited	9,280	0.13	9,098	0.14	-8.90
NN.RU	8,882	0.12	7,039	0.11	12.70
GeoTrust, Inc.	8,601	0.12	8,827	0.13	-12.97
DreamHost	8,099	0.11	7,578	0.12	-4.54
Odin	7,879	0.11	7,264	0.11	-3.12
Cybertrust Japan Co., Ltd.	7,439	0.10	7,241	0.11	-8.24
SecureCore	6,795	0.09	6,108	0.09	-0.64
home.pl S.A.	5,945	0.08	4,478	0.07	18.57
Internet Widgits Pty Ltd	4,792	0.07	4,455	0.07	-3.93
SSL.com	4,694	0.06	4,189	0.06	0.08
Plesk	4,602	0.06	4,103	0.06	0.18
Hostpoint GmbH	4,457	0.06	4,043	0.06	-1.54
nazwa.pl sp. z o.o.	3,860	0.05	3,513	0.05	-1.86
Comodo Limited	3,613	0.05	3,585	0.05	-9.99
ispgateway	3,518	0.05	3,448	0.05	-8.87
SECOM Trust Systems CO.,LTD.	3,396	0.05	3,385	0.05	-10.39
Corporation Service Company	2,943	0.04	2,868	0.04	-8.35
CloudFlare, Inc.	2,813	0.04	2,653	0.04	-5.30
KDDI Web Communications Inc.	2,766	0.04	2,713	0.04	-8.94
Verisign	2,740	0.04	2,365	0.04	3.48
io.ua	2,660	0.04	2,399	0.04	-0.97
Trust Provider B.V.	2,514	0.03	2,333	0.04	-3.76
Thawte, Inc.	2,243	0.03	2,302	0.04	-12.97
Pizza-Taxi.de GmbH / CA	2,236	0.03	2,074	0.03	-3.71
National Institute of Informatics	2,126	0.03	2,127	0.03	-10.73
Government of Korea	2,062	0.03	2,018	0.03	-8.74
WoSign CA Limited	2,025	0.03	2,040	0.03	-11.34
T-Systems International GmbH	1,709	0.02	1,685	0.03	-9.41
WebSupport, s.r.o.	1,695	0.02	1,504	0.02	0.66
DOMENY.PL sp. z o.o	1,577	0.02	1,521	0.02	-7.40
Actalis S.p.A./03358520967	1,562	0.02	1,321	0.02	5.61
Equifax (Geotrust)	1,550	0.02	1,547	0.02	-10.51
TAIWAN-CA	1,480	0.02	1,533	0.02	-13.77
Hosting Ukraine LLC	1,302	0.02	1,115	0.02	4.29
KEYNECTIS	1,259	0.02	1,213	0.02	-7.30
SwissSign AG	1,258	0.02	1,245	0.02	-9.75
Rede Nacional de Ensino e Pesquisa - RNP	1,257	0.02	1,199	0.02	-6.36
AlphaSSL	1,200	0.02	1,216	0.02	-11.86
EUNETIC GmbH	1,194	0.02	1,211	0.02	-11.94
UIC	1,168	0.02	1,167	0.02	-10.61
Default Company Ltd	1,110	0.02	986	0.02	0.55
U.S. Government	1,073	0.01	1,091	0.02	-12.16
NetLock Kft.	1,040	0.01	1,029	0.02	-9.73
Japan Registry Services Co., Ltd.	993	0.01	935	0.01	-5.14
AC Camerfirma S.A.	936	0.01	897	0.01	-6.80
Dreamcommerce S.A.	900	0.01	853	0.01	-5.76
Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.	859	0.01	797	0.01	-3.74
Volusion, Inc.	807	0.01	850	0.01	-15.20
Webhosting	790	0.01	642	0.01	9.90
Globe Hosting, Inc.	722	0.01	701	0.01	-8.01
Test Self SSL Company	718	0.01	619	0.01	3.60
Nijimo, Inc.	697	0.01	628	0.01	-0.87
Trend Micro Inc	692	0.01	702	0.01	-11.96
WEDOS Internet, a.s.	676	0.01	616	0.01	-1.99
CAcert Inc.	657	0.01	660	0.01	-11.09
TBS INTERNET	640	0.01	633	0.01	-9.70
XX	632	0.01	572	0.01	-1.32
FNMT-RCM	622	0.01	626	0.01	-11.26
Buypass AS-983163327	614	0.01	598	0.01	-8.30
Intermediate Certificate	602	0.01	584	0.01	-7.93
Zimbra Collaboration Server	584	0.01	584	0.01	-10.68
Root CA	536	0.01	528	0.01	-9.33
ACCV	526	0.01	529	0.01	-11.19
Comodo CA Limited	505	0.01	503	0.01	-10.33
SH	501	0.01	412	0.01	8.61
Verizon Enterprise Solutions	498	0.01	517	0.01	-13.97
Apache HTTP Server	497	0.01	463	0.01	-4.13
ICP-Brasil	494	0.01	498	0.01	-11.40
HydrantID (Avalanche Cloud Corporation)	477	0.01	469	0.01	-9.16
Thawte	462	0.01	470	0.01	-12.21
AffirmTrust	455	0.01	433	0.01	-6.15
Beijing Knownsec Information Technology Co., Ltd	436	0.01	428	0.01	-9.02
Intexmedia	429	0.01	379	0.01	1.10
TrustAsia Technologies, Inc.	393	0.01	0	0.00	N/A
Universitaet Stuttgart	385	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.