Subdomain

How Do Subdomains Work?

Subdomains work by directing visitors to a different part of your site, or a different site entirely. If you already have a domain name, you can add subdomains for many different purposes.

We already mentioned the example of adding a www subdomain to the domain sendlayer.com to create www.sendlayer.com. That’s the most common example of a subdomain that you’ll notice while browsing the web. Most of the time, the www subdomain points to the main domain.

There are many other reasons to create a subdomain. For example, you might want to have your main website at example.com, but use blog.example.com for your blog. This allows you to run 2 separate sites using 1 domain name.

What Are Subdomains Used For?

Subdomains can be used for a variety of networking purposes. For example, you can:

• Separate part of your website from the main content, like example.com and blog.example.com
• Create a completely separate website without buying another domain name
• Set up multiple versions of your site in different languages
• Provide a shortcut to something on your server; for example, some web hosts use mail.example.com as a shortcut to your webmail account
• Send and receive emails.

To connect your domain name to your website, you need to edit the DNS records for your domain. The DNS record is a little like your domain’s entry in a phonebook, so it contains all of the information needed to send your visitors to the right place, depending on the subdomain that they visit.

Why Are Subdomains Used to Send Email?

SendLayer uses a subdomain to send email because it protects your domain’s email sending reputation. For more information, check out why SendLayer sends emails from a subdomain.