SSL Usage Distribution in the Top 1 Million Sites

Distribution for websites using SSL providers

Technology	Websites	%
SSL by Default	632,531	63.25
LetsEncrypt	324,198	32.42
Comodo SSL	147,081	14.71
Cloudflare SSL	144,595	14.46
Comodo PositiveSSL	142,762	14.28
DigiCert SSL	106,546	10.65
GoDaddy SSL	66,945	6.69
CPanel SSL	59,539	5.95
Sectigo SSL	45,184	4.52
GlobalSign	28,628	2.86
RapidSSL	27,817	2.78
Amazon SSL	27,424	2.74
GeoTrust SSL	22,207	2.22
Starfield Technologies	21,300	2.13
Comodo PositiveSSL Wildcard	18,440	1.84
Thawte SSL	12,844	1.28
EssentialSSL	12,512	1.25
AlphaSSL	11,944	1.19
Encryption Everywhere	8,104	0.81