Wildcard SSL

In general, Wildcard SSL Certificates can only be used to secure subdomain addresses of the main domain address to which it is issued. By default, it secures only a specific subdomain level. For example, your certificate *. abc.com will secure subdomains of the same level.

Wildcard SSL is more complex. It is used by businesses to secure the main domain with multiple subdomains under a single SSL certificate.

Wildcard SSL is a nice option when additional subdomains are added to your main domain and you want to protect them as well. SSL can be set up for many subdomains such as "login", "mail", "ftp". The main difference between a single domain SSL and a Wildcard SSL is that the Wildcard SSL has a "*" prefix, known as the Wildcard character, appended to the domain name. So what is referred to here as "*" (asterisk) can also be "mail", "login", "ftp" or anything else.

Wildcard SSL is easy to manage. It is this feature that makes Wildcard so attractive. The primary domain and all subdomains are registered under a single certificate. This means that the expenditure incurred is also significantly lower. It is flexible, as many subdomains can be added as the user wants and as needed. It is economical! Wildcard saves you from the need to purchase separate SSL certificates for each of these subdomains. You can also be economical without compromising your safety. Browser compatibility. It is compatible with almost all browsers used on computers and smartphones such as Chrome, Firefox, Safari, Apache. Wildcard SSL offers 256-bit encryption.

SAN SSL Certificate
SAN SSL is used for multiple domain SSL. In other words, the website owner is responsible for protecting the security of multiple domains under a single certificate. Obviously, the biggest difference between Wildcard and SAN SSL is that SAN can be implemented for multiple main domains (such as abc.com, xyz.com) but Wildcard cannot. SAN is also called UCC (Unified Communication Certificate).

The main difference from Wildcard SSL is that the website owner needs to define domains and subdomains when issuing a certificate. If he wants to add it later, he or she must generate a new certificate. So here Wildcard is not as flexible as SSL.

If you have many main sites, you can secure them all with a single certificate with SAN Certificate. SAN is compatible with almost all existing browsers. Provides 256 bit encryption. SAN SSL is the most preferred type of certificate when it is required to secure a server going with multiple names. The SAN certificate provides security for various primary domains and domains are listed under it. SAN is the ideal option for a large organization.

You can protect all your subdomain addresses with the Wildcard SSL certificate. By placing an order through our system, it will be sufficient to write your main domain name with an asterisk.
A "regular" SSL certificate provides encryption for a domain (and it's technically a subdomain as Comodo SSL certificates will cover both WWW and non-WWW versions of your website). Single-domain SSL certificates are available in three validation levels, including EV.

Wildcard SSL certificates have a shared private key. The disadvantage is that you share the same private key on all your subdomains. It doesn't matter if your entire site is on a single server. However, if your subdomains are on different servers, you must move and share your private key. If you are protecting multiple public subdomain addresses, a compromised certificate key will affect the security of all your protected subdomain addresses rather than just one of your subdomains.

Wildcard does not have SSL EV verification option. Additionally, Wildcard certificates do not include the EV option to enable the green address bar. This is a security decision. So if you want EV, or green bar, in your subdomains, it might be better to use an EV Multi-Domain certificate.

EV validated SSL certificates provide the highest level of trust among all SSL certificates. Some rules have been defined to prevent misuse of EV SSL certificates. The producer CA (certificate authority, producer), which defines these rules for issuing an EV SSL certificate, requires that each host associated with a certificate be verified. Therefore, it is not possible to buy or sell Wildcard EV certificate. As it is known, an asterisk (*) is used for Wildcard SSL for definitions. For example, to apply to all subdomains, it is implemented like * .abc.com, where subdomain names are unlimited number of subdomains whose names are not explicitly listed. In short, it is not possible to use Wildcard because you need to verify all addresses to be applied for EV type SSL.

You can make some applications to protect subdomains by using an EV certificate:
1. You can purchase several separate EV SSL certificates. This is ideal if you only have a few subdomains you want to protect. In this case, you can give a single EV certificate to each of them. The downside, of course, is that you probably have to enter the required data for each certificate separately. This is not a suitable option for every user.

2. You can purchase an EV multidomain certificate. Actually, this option is more useful. The reason is that multiple SSL certificates cover a sufficient number of domain names and also contain subdomain names. This option is more profitable if you have many domains and subdomains that you want to protect with a certificate. The more domains you add, the more efficient the multi-domain certificate is compared to the standard EV certificate.

The user can only send one request for a certificate containing all domains at once, and this is a good time saver. You can add additional domain addresses even after the certificate is issued. Multiple domain certificates are more advantageous than the option of separate EV certificates. It is easy to manage. Of course, managing all domains from a single point is much easier than managing many individual certificates.

SSL certificate is linked to a domain name. So if you saw the certificate and the listed domain address as * .domain.com, it's a Wildcard SSL certificate. If the domain address is domain.com, then it is specific to that domain. This can be done by checking the common name in SSL's subject.

Wildcard SSL certificates have real drawbacks. When things go wrong, it's like an infection that spreads faster. Because the key to the certificate is shared, your other domains are also compromised with the vulnerability of an SSL.

A wildcard certificate is a public key certificate used by all subdomain addresses in a larger domain. By using a wildcard certificate on a public web server, you can quickly secure unlimited subdomains, all encrypted with the same certificate. It is easy and economical.

Wildcard SSL certificate can be used on multiple servers. There are a few steps required to do this. You can complete your transactions using an administrative system or using OpenSSL. The certificate will need to be uploaded to the original server. If you use different platforms for multiple servers, you can use the copy to convert the file's format for other servers. Once the certificates are uploaded to a server, you need to export it (along with the private key) and possibly convert the format (for different platforms). Then you need to upload it to other servers.

You run the risk of encryption and mutual authentication when you use an expired certificate. You also risk being marked as unsafe in all your subdomain addresses. When users visit your site with an expired SSL certificate, a warning sign will be displayed preventing them from accessing the site.

No documentation is required for a DV verified wildcard SSL certificate. For an OV type of verification, your organization's documents are required by our company. You need a certificate of activity. In the EV type, no documents are required, since the wildcard is not used.

Many subdomains are usually created for e-commerce systems. You can definitely see the advantages of Wildcard SSL certificate. This is the case with your business.

Some SSL providers offer Wildcard SSL services for free to try. In addition, Let's Encrypt also has Wildcard support.

Some SSL manufacturers have limitations. Usually it is unlimited, but this may also have a limit. You can protect 500 subdomain addresses for each domain.

A DNS record with a wildcard character is a record that responds to DNS requests for any subdomain you haven't previously defined. When creating a DNS record, you can create Wildcard A records and CNAME records by entering an asterisk (*) in the host field.

Wildcard DNS Record is used to match requests for domains that do not exist. The Wildcard is specified using "*" as the leftmost tag (part) of the domain name. This type of registration allows all subdomains to share the same set of web content with a single DNS entry.