SSL Usage Distribution in the Top 100k Sites

Distribution for websites using SSL providers

Technology	Websites	%
SSL by Default	83,181	83.18
HSTS	57,907	57.91
LetsEncrypt	44,949	44.95
Amazon SSL	19,243	19.24
DigiCert SSL	18,340	18.34
Sectigo SSL	9,156	9.16
Common Name Invalid	7,409	7.41
GlobalSign	6,905	6.9
Invalid Certificate Dates	6,705	6.7
GeoTrust SSL	6,295	6.3
GoDaddy SSL	4,059	4.06
GlobalSign OV	2,464	2.46
RapidSSL	2,312	2.31
Symantec Secure Site	2,069	2.07
AlphaSSL	1,830	1.83
Entrust SSL	1,743	1.74
Entrust EV	1,657	1.66
Thawte SSL	1,255	1.26
Cloudflare SSL	1,125	1.12
Starfield Technologies	664	0.66
Encryption Everywhere	472	0.47
InCommon	451	0.45
CERTUM	439	0.44
Comodo SSL	360	0.36
GoGetSSL	335	0.34
GlobalSign EV	330	0.33
TrustAsia	269	0.27
SwissSign	239	0.24
JPRS	209	0.21
SSL.com	171	0.17
FujiSSL	130	0.13
TWCA	126	0.13
WoTrus	125	0.12
Network Solutions SSL	114	0.11
Microsoft SSL	97	0.1
HydrantID	95	0.1
Buypass	93	0.09
Corporation Service Company SSL	89	0.09
CPanel SSL	88	0.09
QuoVadis	79	0.08
China Financial Certification Authority	62	0.06
MrDomain	55	0.06
TERENA	54	0.05
Bundesdruckerei	35	0.03
Telia Finland SSL	34	0.03
NETLOCK	23	0.02
Hongkong Post SSL	19	0.02
Trustico DV	17	0.02
Gandi Standard SSL	16	0.02
Symantec Secure Site Pro	16	0.02
certSIGN	15	0.02
TBS INTERNET	11	0.01
Site Blindado	11	0.01
Trustwave SSL	10	0.01
SecureCore	9	0.01
Symantec Secure Site Pro EV	9	0.01
USERTrust	8	0.01
Isimtescil SSL	6	0.01
WISeKey	5	0
Azure SSL	5	0
Wells Fargo SSL	4	0
TeleSec	4	0
McAfee SSL	4	0
Gehirn	3	0
Google SSL	3	0
AffirmTrust	3	0
Extended Validation Certificate	3	0
Symantec Secure Site with EV	3	0
Aetna	2	0
EV United States	2	0
Telia Company	2	0
Heroku SSL	1	0
United SSL	1	0
Network Solutions EV	1	0
Gandi Pro SSL	1	0
Symantec VeriSign	1	0
Akamai SSL	1	0
Hostway SSL	1	0
Apple SSL	1	0
DreamHost SSL	1	0