SSL Usage Distribution in the Top 10k Sites

Distribution for websites using SSL providers

Technology	Websites	%
SSL by Default	8,148	81.48
HSTS	6,273	62.73
LetsEncrypt	4,369	43.69
Amazon SSL	2,475	24.75
DigiCert SSL	2,441	24.41
Sectigo SSL	1,042	10.42
Common Name Invalid	1,016	10.16
GlobalSign	1,001	10.01
Invalid Certificate Dates	778	7.78
GeoTrust SSL	760	7.6
GoDaddy SSL	433	4.33
GlobalSign OV	358	3.58
Symantec Secure Site	267	2.67
RapidSSL	255	2.55
Entrust SSL	245	2.45
Entrust EV	220	2.2
AlphaSSL	219	2.19
Thawte SSL	143	1.43
Cloudflare SSL	137	1.37
Comodo SSL	73	0.73
Starfield Technologies	65	0.65
Encryption Everywhere	57	0.57
Microsoft SSL	57	0.57
GlobalSign EV	44	0.44
TrustAsia	42	0.42
InCommon	37	0.37
GoGetSSL	35	0.35
CERTUM	25	0.25
SSL.com	25	0.25
SwissSign	25	0.25
HydrantID	24	0.24
JPRS	20	0.2
WoTrus	18	0.18
Buypass	15	0.15
QuoVadis	11	0.11
Network Solutions SSL	10	0.1
FujiSSL	10	0.1
Corporation Service Company SSL	9	0.09
MrDomain	6	0.06
CPanel SSL	5	0.05
Trustico DV	5	0.05
TWCA	5	0.05
Bundesdruckerei	5	0.05
China Financial Certification Authority	4	0.04
NETLOCK	3	0.03
Symantec Secure Site Pro	3	0.03
Azure SSL	3	0.03
Telia Finland SSL	2	0.02
Gandi Standard SSL	2	0.02
Hongkong Post SSL	2	0.02
AffirmTrust	2	0.02
Trustwave SSL	2	0.02
USERTrust	1	0.01
TBS INTERNET	1	0.01
Heroku SSL	1	0.01
Google SSL	1	0.01
TERENA	1	0.01
Extended Validation Certificate	1	0.01
Wells Fargo SSL	1	0.01
Symantec Secure Site Pro EV	1	0.01
Aetna	1	0.01
Symantec Secure Site with EV	1	0.01
TeleSec	1	0.01
McAfee SSL	1	0.01
Akamai SSL	1	0.01
Apple SSL	1	0.01
DreamHost SSL	1	0.01