Sectigo SSL Certificate Reviews

I purchased my certificate from SSLs.com, a Comodo reseller, at a cost of ~$5/year with a validity period of 1-3 years. These are commodity domain-validated certificates, so there's no sense paying more than necessary. These certificates protect a single hostname, plus "www" prepended to that hostname. For example, a single certificate could protect "example.com" and "www.example.com" or "subdomain.example.com" and "www.subdomain.example.com". The web interface is simple and user-friendly, and one can submit an RSA CSR directly using the self-service interface. Domain validation is quick and easy, and Comodo issues the certificate within a few minutes after validation. Reissuing existing certificates is self-service and follows the same procedure as the original request. One of the major advantages of Comodo's PositiveSSL offering is that one can request ECDSA certificates and have them issued from an all-ECDSA chain (as opposed to an ECDSA certificate issued from an RSA chain). Two things require SSLs.com customer support: 1. Requesting ECDSA certificates. The SSLs.com self-service interface assumes all CSRs are for RSA certificates and refuses to proceed if the public key is less than 2048 bits. ECDSA keys are typically 256 or 384 bits (but have higher security than 2048 bit RSA certificates) and thus the web interface won't let them proceed. SSLs.com has said they'll update their system to better handle ECDSA CSRs in the future, but for now one must send the CSR to the customer service department and they'll manually submit it to Comodo. Once submitted, the validation and issuance procedure is the same. 2. Revoking certificates. Simply reissuing certificates is free and self-service, but if a server's private key is compromised one must ask the customer support to send a revocation request to Comodo. This is hopefully a very rare situation. Overall, my experience with Comodo and SSLs.com has been very positive and I recommend them to anyone who needs simple, domain-validated certificates.