Sectigo OV Wildcard certificate is a prominent certificate for covering subdomains along with the main domain. The main domain is secured with 256-bit symmetric encryption and the same level of encryption is maintained for subdomains as well. This certificate must be used when there are payment gateways on your websites. As payment gateways need credit card details, there must be secured without compromise. In the same way, subdomains such as. blog, community, etc. will also be covered using this certificate.