Let’s Encrypt will start issuing wildcard certificates in January 2018.
Wildcard certificates can secure any number of subdomains of a base domain. This can make HTTPS deployment easier as administrators may use a single certificate and key pair for a domain and all of its subdomains.
“Wildcard certificates are a commonly-requested feature and we understand that there are some use cases where they make HTTPS deployment easier,” said Let’s Encrypt.
“Our hope is that offering wildcards will help to accelerate the Web’s progress towards 100% HTTPS.”
The organisation said it decided to announce the feature during its summer fundraising campaign, as it is a non-profit which relies on the support of the community using its services.