CA

Compare the features supported by the known CAs:

CA	MaxLifetime	ECC	Domain Count	Wildcard	IPv4	IPv6	NotAfter
Let's Encrypt	90	Yes	100	Yes	No	No	No
ZeroSSL	90	Yes	100	Yes	No	No	Yes
Google	90	Yes	100	Yes	No	No	Yes
Buypass	180	Yes	5	Paid	No	No	No
SSL.com	90	Yes	2	Paid	No	No	No
HiCA	180	Paid	10 (1 if Wildcard)	Yes	Yes	Yes	No