Typically about five minutes once Domain Control Validation completes. The sequence is: place your order, submit your CSR, choose a validation method, and install. Email validation is the slowest of the three because it depends on how quickly you can open the link in the approved mailbox, so allow an extra 10 to 20 minutes if you go that route.

Comodo PositiveSSL at $7.66/yr for a single domain, including a $10,000 warranty, unlimited reissues, and unlimited server licences. That rate assumes a multi-year term. Cheaper certificates exist elsewhere in the market, and Let’s Encrypt is free, so the question worth asking is whether you need a warranty and a support desk.

Yes, and the two can be combined. A multi-domain wildcard certificate covers several main domains and all their subdomains on one DV-level certificate. That is the widest coverage available without moving up to Organization Validation.

Not the right fit. A DV certificate encrypts the connection but never verifies the business behind the site, so it omits the identity assurance shoppers expect at checkout. Use OV SSL or EV for any site taking payments or holding personal data. The cryptography is the same; the trust signal is not.

Three methods are accepted: a DNS record containing a value the CA supplies, a file uploaded to /.well-known/pki-validation/ on your server, or a link emailed to one of five approved addresses at the domain. DNS and HTTP are the durable options. Email-based validation is being retired by the CA/Browser Forum under ballot SC-090 in March 2028.

A domain validated certificate confirms only that the applicant controls the domain. An organization validated certificate adds a check on the registered business behind it, including name, address, and registration details, and takes a business day or two rather than minutes. Encryption is identical; the difference is what the certificate says about who runs the site.