CA - acmesh-official/acme.sh GitHub Wiki

Compare the features supported by the known CAs:

CA MaxLifetime ECC Domain Count Wildcard IPv4 IPv6 NotAfter IDN
Let's Encrypt 90 Yes 100 Yes No No No Yes
ZeroSSL 90 Yes 100 Yes No No Yes Yes
Google 90 Yes 100 Yes No No Yes No
Buypass 180 Yes 5 Paid No No No Yes
SSL.com 90 Yes 2 Paid No No No Yes