A subdomain is a delimited area of a larger domain that is separated from the main domain by a dot and listed before it. One example is support.omr.com, where support is the subdomain of the main domain omr.com. Subdomains are used to organize various segments of a website, such as a customer support area or a blog. They can also provide specific content or features for specific user groups, such as an exclusive area for members.
Subdomains are very flexible to use, are easy to set up and adapt and thus offer a practical solution for structuring and expanding a website. How subdomains affect search engine optimization (SEO) is discussed in detail in our special article on subdomain SEO.
