there are 3 types of ssl tls certificates
single | wildcard | san

single :
for one domain or one subdomain under one extension only.
_{i.e. : mybusiness.com or shop.mybusiness.com}

wildcard :
for one domain and as many subdomains of the main domain under one extension only
_{i.e. : *.mybusiness.com shop.mybusiness.com tech.mybusiness.com chat.mybusiness.com etc.}

san [ subject alternative name ]
_{one certificate for complex setups that comes in 3 variation :}

[ a ] : basic sanfor any domain under any extension [ up to 250 of them ]
_{i.e. : mybusiness.com mybusiness.net ourbusiness.us anybusiness.ca etc.}

[ b ] : wildcard san
for any domain under any extension and anything you want, one level bellow under the main domain[s] [ up to 250 of them ]
_{i.e. : *.mybusiness.com *.mybusiness.net *.ourbusiness.us *.anybusiness.ca
and
shop.mybusiness.com tech.mybusiness.net shop.ourbusiness.us tech.anybusiness.ca etc.}

[ c ] : flex san
the two san types above in one. the limit for this and all other types of san certificates is 250 domains/subdomains

_{a domain name could be : 'mybusiness' 'ourbusiness' 'anybusiness' etc.
a sub domain name could be : 'shop.mybusiness' 'tech.ourbusiness' 'chat.anybusiness' etc.
an extension could be : 'com' 'net' 'us' 'ca' etc.}

there are 3 levels of domain and/or organiztion validation

DV | OV | EV

DV : DOMAIN VALIDATION
Ownership of the domain has to be ascertained.
_{A request for confirmation would be sent to the e-mail address listed on your domain name WHOIS record as the registrant' contact e-mail address.}

OV : ORGANIZATION VALIDATION
Basic proof of an entity existence has to be ascertained by the CA.
_{In addition to the step above [ domain validation ], the CA [ the entity who will issue the certificate ] will verify the existence of a record of your business on any available public databases. Those would be for example, the national business registration authority, any business listing directory, Dun & Bradstreet etc.}

EV : EXTENDED VALIDATION
Extended proof of an entity existence has to be ascertained by the CA and submitted by YOU to the CA for review.
_{In addition to the steps above [ domain validation and organization validation ], YOU will also have to submit to the CA [ the entity who will issue your certificate ] a number of documents that will confirm your business existence such us the business certificate of registration, copy of tax returns, utility bills etc.}

Note : The stages outlined above are not an exhaustive list of all the steps that may be required for your organization to get validated. Organizations are assessed on a case by case basis by the CA [ Certificate Authority ]. Sectigo™, Entrust™, DigiCert™ and so on are CAs.

SSL Certificates installation is a technicaly complex process, therefore, our Installation Service [ although optional, strongly recommended ] is FREE and here to ensure that your new certificate gets installed correctly across a wide variety of server types and platforms. Please note that this offer is available for a new purchase aswel as for certificate renewalls, as long as the certificates were provided/purchased by/from us.

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