Protect Your Primary Domain
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Using Sectigo Wildcard SSL certificates, you can encrypt and protect your website in a simple and effective way.

With this particular variety of digital certificates, you may protect your primary domain and an unlimited number of subdomains that are subordinate to your primary domain using just a single certificate.

One Wildcard certificate would suffice for several subdomains, such as www.yourwebsite.com, login.yourwebsite.com, mail.yourwebsite.com, etc., rather than multiple individual certificates.

How To Protect Your Primary Domain

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SSL Certificates To Protect Your Domain with Sub-Domains

This type provides full encryption for the subdomains, making it a cost-effective solution that is suitable for the vast majority of websites. Validation choices include Domain Validated (DV) and Organizationally Validated (OV).

Netscape Communications Corporation developed SSL. SSL protocol enables a web server to create an encrypted connection with a browser.

This encrypted link ensures that the data sent between the two ends will be kept secret and unaltered.

SSL is the recognized industry standard millions of websites use to protect online customer transactions. Netscape Communications Corporation developed SSL.

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3 Types of SSL Certificates To Protect a Domain

You will first need to select the appropriate SSL type for your needs to use SSL on your server.

This guide will explain the fundamental differences between the various SSL versions.

#1. Single SSL

Single-name One individual sub-domain is secured by each SSL certificate (hostname).

For instance, if you buy a certificate for www.abcdomain.com, it will not protect my.abcdomain.com if you also use it for that domain.

If you acquire a single-name certificate, the certificate may also include the root domain at the certificate authority’s sole discretion.

This applies only if you purchase the www hostname (mydomain.com) certificate.

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#2. Multiple SSL SAN

A SAN certificate, also known as a Subject Alternative Name certificate, enables the protection of many domain names using a single certificate.

For instance, purchase a certificate for mydomain.com and add extra SAN values to secure mydomain.org, mydomain.net, and even mydomain.com with the same certificate.

The Subject Alternative Name (SAN) values can, in the vast majority of instances, be modified at any point during the certificate’s existence; all that is required is for the value to be modified, after which a new certificate must be issued.

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#3. SSL with a wildcard

Using a single SSL certificate to protect many sub-domains is impossible without using a “wildcard” certificate.

The wildcard certificate is often preferable to the Subject Alternative Name (SAN) certificate since it enables the creation of an unlimited number of subdomains and does not need the buyer to specify them before making the purchase.

You will not have to redeploy the certificate to add sub-domains, as this step is not required.

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For instance, you might use a wildcard certificate for the domain name mydomain.com, and that certificate would also function for any additional sub-domains linked with mydomain.com, such as my.mydomain.com and my1.mydomain.com.

The term “wildcard” refers to the fact that the certificate is issued for *.mydomain.com, which is what the phrase means.

This eliminates any possibility of the certificate not functioning properly. Thus there is no need to reissue it.

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