Comodo/Sectigo PositiveSSL DV
The Sectigo (formerly Comodo CA) PositiveSSL is one of the most popular Domain validation SSL certificates in the World. It is a 2048-bit industry standard product with the support of both RSA and ECC hash algorithms for a very low price. PositiveSSL comes with a green lock on the address line that helps customers to understand that their data are encrypted and kept private with a trusted SSL certificate. There is no any other so good SSL for small websites, start-ups, and other environmental protection.
Comodo/Sectigo InstantSSL Premium OV
Leading enterprise networks and web sites use InstantSSL Premium certificate with 256-bit encryption. It is a professional solution to secure web servers with 99%+ browser support and trust. It comes with quite a great warranty level of 250,000$, so end-customers will have no doubts to trust it. InstantSSL Premium is a unique SSL as it secures both FQDN (Fully qualified domain name) and Public IP address.
Comodo/Sectigo PositiveSSL EV
One of the newest SSL certificates from Sectigo (Formerly Comodo CA) is the PositiveSSL EV certificate, it arrived in April 2017. That is one of the cheapest EV SSL certificates that go with a Green address bar available on the market.