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What is Wildcard SSL?

Wildcard SSL Certificates are a powerful solution for securing multiple subdomains under a single domain with just one certificate. If you have a website that uses subdomains and you want to secure them all with a single SSL certificate, a Wildcard SSL Certificate is the ideal choice.

With a Wildcard SSL Certificate, you can secure your main domain (e.g., example.com) as well as an unlimited number of subdomains (e.g., blog.example.com, shop.example.com, mail.example.com, etc.) using a single certificate. This provides convenience and cost savings compared to obtaining separate certificates for each subdomain.

Wildcard SSL Certificates use a special wildcard character (*) in the domain name field to secure multiple subdomains. For example, if you have a Wildcard SSL Certificate for *.example.com, it will secure any subdomain under example.com, such as blog.example.com, shop.example.com, and so on.

By securing all subdomains with a Wildcard SSL Certificate, you ensure that sensitive information transmitted between your website and visitors remains encrypted and protected. This is particularly important for websites that have a large number of subdomains or frequently create new subdomains dynamically.

Frequently Asked Questions

    SSL Certificates are small data files that digitally bind a cryptographic key to an organization’s details. When installed on a web server, it activates the padlock and the https protocol and allows secure connections from a web server to a browser. Typically, SSL is used to secure credit card transactions, data transfer and logins, and more recently is becoming the norm when securing browsing of social media sites. SSL Certificates bind together: # A domain name, server name or hostname. # An organizational identity (i.e. company name) and location. # An organization needs to install the SSL Certificate onto its web server to initiate a secure session with browsers. Once a secure connection is established, all web traffic between the web server and the web browser will be secure. When a certificate is successfully installed on your server, the application protocol (also known as HTTP) will change to HTTPs, where the ‘S’ stands for ‘secure’.

    SSL Certificates use something called public key cryptography. This particular kind of cryptography harnesses the power of two keys which are long strings of randomly generated numbers. One is called a private key and one is called a public key. A public key is known to your server and available in the public domain. It can be used to encrypt any message. If Alice is sending a message to Bob she will lock it with Bob’s public key but the only way it can be decrypted is to unlock it with Bob’s private key. Bob is the only one who has his private key so Bob is the only one who can use this to unlock Alice’s message. If a hacker intercepts the message before Bob unlocks it, all they will get is a cryptographic code that they cannot break, even with the power of a computer. If we look at this in terms of a website, the communication is happening between a website and a server. Your website and server are Alice and Bob.

    SSL Certificates protect your sensitive information such as credit card information, usernames, passwords etc. It also: # Keeps data secure between servers # Increases your Google Rankings # Builds/Enhances customer trust # Improves conversion rates