What are subdomains and why are they needed?

What is a subdomain?

A subdomain is a domain that is part of a higher-level domain. In specialized literature, the definition of “subdomain” is also found; these terms are synonymous. What classes are they represented by? What are they used for?

Analysis of the concept

The Internet is formed by many sites, network resources, and they are parts, segments that provide content structuring, ease of navigation, management and settings. For example, the main site is called “example.net”. It contains the most significant information characterizing the profile of the organization. The following subdomains can be created on this site:

• Forum.example.net – a section for a forum, user communication, discussion of issues related to the company, or third-party, thematic ones.
• Blog.example.net – a section for publishing interesting thematic articles, reviews, the authors of which can be both site administrators and registered users.
• Region.example.net – a section for a regional representative office of a large organization.

Classification

The main classification feature for subdomains is their purpose. Experts distinguish the following main types:

• Service. Their purpose is to separate the functions of the main site. For example, the forum mentioned above. It is also permissible to allocate an online store, message board, blog, form for communication with the support service, administrators into a separate subdomain. The group of service subdomains also includes landing pages dedicated to a specific event, service, product, or structural division of the parent organization.
• Geographical. They are necessary if we are talking about a large-scale organization represented in different cities, regions, and countries. Separation simplifies the search, allows for a clearer structuring of offers, products, and contacts that are relevant exclusively in a certain geographic area. A national subdomain related to a specific country should have good localization so that visitors do not encounter translation difficulties.
• Mobile. They have not been used very often lately, which is explained by the development of adaptive design, however, some sites are still presented in separate mobile and desktop versions.
• Test. They are used when upgrading, changing the functionality or design of the main site. The subdomain leaves the base accessible for visiting, placing orders, while developers can work calmly, check how well the updated design suits the network resource, whether there are any problems with navigation, using certain functions, tabs.

The need for subdomains

Subdomains are mainly used by large organizations offering various goods and services, having regional offices interacting with a wide target audience. Each of the possible functions should be considered separately.

Search engine promotion

For Yandex or Google, a subdomain is a separate resource, which increases the effectiveness of SEO for the main site. The advantages are as follows:

• Achieving top positions in search results, even if we are talking about niches with high competition. Using auxiliary domains allows for a more even distribution of high-frequency key phrases, increases the visibility of the main domain for search robots, increases the volume of attracted traffic, bypasses restrictions, and eliminates the risk of being blocked.
• Regional promotion. A subdomain for each city or region where the company is represented ensures confident interaction of the site with search robots that take into account geographic location.

Ensuring ease of navigation

For each section of the site, product category, you can create a separate subdomain, which will make it easier for the user to find the desired position, information. For example, on a site with car ads, you can highlight segments where motorcycles, special equipment, and cars are collected.

Acceleration of the network resource

The effect is most pronounced if the main site is overloaded with large files, such as videos or high-resolution photos. With the help of subdomains, you can distribute information more evenly, pages load much faster. This will be appreciated not only by visitors, but also by search engines, positions in the search results will improve, traffic and conversion will increase.

Maintaining the security of the main site

This is especially important if you plan to upgrade the network resource, change its design, add new functions. A subdomain is the best option for all tests and checks. No one is immune from errors, but they will not affect the functionality of the main portal, will not worsen traffic, conversion, positions in search results lists.

How to create a subdomain?

In order to 100% realize the benefits of subdomains, ensure their functionality, efficiency in promoting the main portal, it is necessary to take a responsible approach to creation. The most important requirement is uniqueness, the presence of its own design, binding by region, semantic core. To ensure uniqueness, you need to follow several principles:

• Creating unique content for each subdomain;
• Correct regional binding;
• Creating cross-links with the main site;
• Confirming webmaster rights in Google and Yandex systems;
• Using your own semantic core and unique key queries when promoting.

The subdomain must be well thought out from the technical side and be secure. To service it, you should involve additional specialists, administrators, use secure HTTPS protocols that ensure data transfer with preliminary encryption, SSL certificates, regularly conduct checks for vulnerabilities and minor failures that can lead to serious problems.