Google Public CA

Google just announced its free ACME server: https://cloud.google.com/blog/products/identity-security/automate-public-certificate-lifecycle-management-via--acme-client-api

It supports multiple domains and wildcard domains. The lifetime of the cert is 90 days too.

1. As it's still in beta preview version, you must sign up the Request access form here first:

   https://docs.google.com/forms/d/e/1FAIpQLSd8zUIww_ztyT9a56OPq9NXISiyw6Y9g8S7LBtRQjxPhsHz5A/viewform?ts=620a6854

2. You will get email notificateion in a few hours if your request is accepted. Then follow this guide to create your EAB key and EAB id:

   https://cloud.google.com/public-certificate-authority/docs/quickstart

3. OK, Done. You can register an ACME and issue certs now:

   acme.sh  --register-account  -m  myemail@example.com --server google \
       --eab-kid xxxxxxx \
       --eab-hmac-key xxxxxxx
   
   acme.sh --issue  --server google \
      -d example.com  --dns dns_cf
   
   

Here is an example cert:

-----BEGIN CERTIFICATE-----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G8iQjR+0nJBVqnVCuRDArh2qYFQd/W5zFj46n/Edzx0jrc38RiBorx4IT0Pfm23o
+XvkdKDqdDquzq7FdYa5wDXlwQJOuf4BRPBo7a5f4fJpRcL3QSDwewSSHhDKQXFH
74yQYKaw0gRoE71IEmk=
-----END CERTIFICATE-----

The full chain:

-----BEGIN CERTIFICATE-----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MCEGA1UdIAQaMBgwCAYGZ4EMAQIBMAwGCisGAQQB1nkCBQMwPAYDVR0fBDUwMzAx
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tkICIps1tXncYwnERecZDPeyk7BaeiS4D2gcFnP5zRJI9s6hpwlDLumcAcNMF4DV
xT1Xm/GDkvv3c+tAgcYyoKRjeLZcgzZb1TVnG/yWT3Q+vcyNvYy/UuZQuF019plC
oCvo5zyV0qeArps3WtyJOQ5QGuEmp8Vr3nQcG0MJpXNgMV1wE9S0TWn7AJ+x2csr
G8iQjR+0nJBVqnVCuRDArh2qYFQd/W5zFj46n/Edzx0jrc38RiBorx4IT0Pfm23o
+XvkdKDqdDquzq7FdYa5wDXlwQJOuf4BRPBo7a5f4fJpRcL3QSDwewSSHhDKQXFH
74yQYKaw0gRoE71IEmk=
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----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wwLbYuyA0P921IbkBBq2tgwrYnF92a/Z8V76wB7KoBlcVfCA0SoMB4aQnzXjKCtb
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UVzjwCv9twZIUX4JXj8P3Kf+l+d5xQ5EiXjFaVkpoJo6SDYpppSTVS24R7XplrWf
B82mqz4yisCGg8XBQcifLzWODcAHeuGsyWW1y4qn3XHYYWU5hKwyPvd6NvFWn1ep
QW1akKfbOup1gAxjC2l0bwdMFfM3KKUZpG719iDNY7J+xCsJdYna0Twuck82GqGe
RNDNm6YjCD+XoaeeWqX3CZStXXZdKFbRGmZRUQd73j2wyO8weiQtvrizhvZL9/C1
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pDnQwCvIUxX10i+CzQZ0Z5mQdzcKly3FHB700FvpFePqAgnIE9cTcGW/+4ibWiW+
dwnhp2pOEXW5Hk3xABtqZnmOw27YbaIiom0F+yzy8VDloNHYnzV9/HCrWSoC8b6w
0/H4zRK5aiWQW+OFIOb12stAHBk0IANhd7p/SA9JCynr52Fkx2PRR+sc4e6URu85
c8zuTyuN3PtYp7NlIJmVuftVb9eWbpQ99HqSjmMd320=
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIFYjCCBEqgAwIBAgIQd70NbNs2+RrqIQ/E8FjTDTANBgkqhkiG9w0BAQsFADBX
MQswCQYDVQQGEwJCRTEZMBcGA1UEChMQR2xvYmFsU2lnbiBudi1zYTEQMA4GA1UE
CxMHUm9vdCBDQTEbMBkGA1UEAxMSR2xvYmFsU2lnbiBSb290IENBMB4XDTIwMDYx
OTAwMDA0MloXDTI4MDEyODAwMDA0MlowRzELMAkGA1UEBhMCVVMxIjAgBgNVBAoT
GUdvb2dsZSBUcnVzdCBTZXJ2aWNlcyBMTEMxFDASBgNVBAMTC0dUUyBSb290IFIx
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ladAPKH9gvl9MgaCcfb2jH/76Nu8ai6Xl6OMS/kr9rH5zoQdsfnFl97vufKj6bwS
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d0lIKO2d1xozclOzgjXPYovJJIultzkMu34qQb9Sz/yilrbCgj8=
-----END CERTIFICATE-----