Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).
COMODO SSL Status Details
COMODO SSL Alternatives
SaaSHub's Down Detector checks the status of services automatically and regularly. However, we cannot promise 100% accuracy. That is why we depend on user reported issues as well. The COMODO SSL status here can help you determine if there is a global outage and COMODO SSL is down for everyone or it is just you that is experiencing problems. Please always report any issues to help others know the current status.