SSL Usage Distribution in the Top 10k Sites

Distribution for websites using SSL providers

Technology	Websites	%
SSL by Default	8,189	81.89
HSTS	6,289	62.89
LetsEncrypt	4,433	44.33
Amazon SSL	2,497	24.97
DigiCert SSL	2,461	24.61
Common Name Invalid	1,046	10.46
Sectigo SSL	1,041	10.41
GlobalSign	1,007	10.07
Invalid Certificate Dates	820	8.2
GeoTrust SSL	765	7.65
GoDaddy SSL	432	4.32
GlobalSign OV	353	3.53
Symantec Secure Site	273	2.73
RapidSSL	253	2.53
Entrust SSL	249	2.49
Entrust EV	224	2.24
AlphaSSL	223	2.23
Thawte SSL	147	1.47
Cloudflare SSL	136	1.36
Comodo SSL	73	0.73
Encryption Everywhere	65	0.65
Starfield Technologies	60	0.6
Microsoft SSL	58	0.58
TrustAsia	45	0.45
GlobalSign EV	45	0.45
InCommon	37	0.37
GoGetSSL	34	0.34
CERTUM	29	0.29
SSL.com	25	0.25
SwissSign	25	0.25
HydrantID	24	0.24
JPRS	21	0.21
WoTrus	17	0.17
Buypass	16	0.16
QuoVadis	11	0.11
Network Solutions SSL	10	0.1
FujiSSL	9	0.09
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	4	0.04
Azure SSL	4	0.04
Symantec Secure Site Pro	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
TeleSec	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
McAfee SSL	1	0.01
Akamai SSL	1	0.01
Apple SSL	1	0.01
DreamHost SSL	1	0.01