Usage Distribution in the Top 100k Sites

Distribution for websites using providers

Technology	Websites	%
SSL by Default	84,776	84.78
HSTS	57,873	57.87
LetsEncrypt	49,797	49.8
DigiCert SSL	18,458	18.46
Amazon SSL	17,971	17.97
Sectigo SSL	9,245	9.25
GlobalSign	6,780	6.78
Common Name Invalid	6,241	6.24
Invalid Certificate Dates	5,998	6
GeoTrust SSL	5,772	5.77
Cloudflare SSL	5,736	5.74
GoDaddy SSL	4,289	4.29
GlobalSign OV	2,349	2.35
RapidSSL	2,295	2.3
Symantec Secure Site	1,967	1.97
Entrust SSL	1,886	1.89
AlphaSSL	1,841	1.84
Entrust EV	1,808	1.81
Thawte SSL	1,277	1.28
CPanel SSL	832	0.83
Starfield Technologies	700	0.7
Encryption Everywhere	501	0.5
CERTUM	446	0.45
InCommon	438	0.44
GoGetSSL	346	0.35
TrustAsia	334	0.33
GlobalSign EV	331	0.33
Comodo SSL	319	0.32
SwissSign	207	0.21
JPRS	197	0.2
SSL.com	153	0.15
FujiSSL	148	0.15
Corporation Service Company SSL	139	0.14
Network Solutions SSL	127	0.13
TWCA	124	0.12
WoTrus	117	0.12
Gandi Standard SSL	101	0.1
Microsoft SSL	99	0.1
QuoVadis	98	0.1
Buypass	94	0.09
HydrantID	83	0.08
China Financial Certification Authority	73	0.07
MrDomain	55	0.06
TERENA	45	0.04
NETLOCK	35	0.03
Telia Finland SSL	34	0.03
Bundesdruckerei	30	0.03
Trustwave SSL	26	0.03
SecureCore	25	0.02
Symantec Secure Site Pro	20	0.02
Hongkong Post SSL	17	0.02
Trustico DV	14	0.01
Site Blindado	14	0.01
Azure SSL	13	0.01
certSIGN	11	0.01
Symantec Secure Site Pro EV	11	0.01
USERTrust	8	0.01
TBS INTERNET	7	0.01
TeleSec	5	0
Isimtescil SSL	4	0
Aetna	4	0
McAfee SSL	4	0
United SSL	3	0
WISeKey	3	0
AffirmTrust	3	0
Gehirn	3	0
Symantec Secure Site with EV	3	0
Wells Fargo SSL	3	0
Telia Company	3	0
Apple SSL	3	0
Google SSL	2	0
Network Solutions EV	2	0
XTrust	2	0
Gandi Pro SSL	2	0
Extended Validation Certificate	1	0
Symantec VeriSign	1	0
AlwaysOnSSL	1	0
Akamai SSL	1	0
Digi-Sign	1	0
DreamHost SSL	1	0