April 16, 2022 Mark Acornley

What is a Subdomain + How Does It Affect SEO?

Haave you ever questioned the significance of subdomains in the intricate web of SEO strategies?

How do these digital subdivisions impact your website’s standing amidst the ever-evolving world of search engine rankings?

Get ready to embark on a journey of enlightenment as we unravel the mysteries surrounding subdomains and their implications for SEO.

From understanding their role in site structure to uncovering their potential influence on organic traffic, we’ll navigate through this lesser-known territory of website management.

Join us as we delve deep into the world of subdomains and unlock their secrets to bolster your online presence.

What is a subdomain?

In simple terms, a subdomain is a subset of a larger domain, used to organise and partition different sections of a website.

For example, in the URL “blog.example.com”, “blog” is the subdomain, while “example.com” is the main domain.

So, how does this relate to SEO? Well, subdomains can have a significant impact on your site’s search engine rankings, depending on how they’re utilised.

By understanding the nuances of subdomain SEO, you can leverage this powerful tool to improve your website’s visibility and drive more organic traffic.

The Role of Subdomains in SEO

Subdomains play a crucial role in SEO by providing a way to organise and structure your website’s content effectively.

They allow you to create separate sections or microsites within your main domain, each with its own unique content and focus.

This organisational approach not only enhances the user experience but also makes it easier for search engines to crawl and index your site.

Creating Subdomains: A Step-by-Step Guide

Now that we’ve covered the basics of subdomain SEO, let’s explore how to create and implement subdomains effectively.

Follow these simple steps to set up subdomains for your website:

  1. Evaluate Your Website Structure: Before creating subdomains, take some time to assess your website’s structure and determine which sections could benefit from a separate subdomain. Common use cases for subdomains include blogs, e-commerce stores, and language-specific content.
  2. Choose a Subdomain Name: Once you’ve identified the areas of your site that warrant separate subdomains, choose relevant and descriptive names for each subdomain. Keep in mind that subdomain names should be easy to remember and relevant to the content they represent.
  3. Configure Subdomains in Your Hosting Provider: Log in to your web hosting provider’s dashboard and navigate to the domain management section. Look for options to create subdomains and follow the prompts to set up each subdomain. Be sure to specify the desired subdomain name and associate it with the appropriate directory or content.
  4. Update DNS Records: After creating subdomains, you’ll need to update your domain’s DNS records to ensure that the subdomains are properly configured and accessible. This process may vary depending on your hosting provider, so refer to their documentation or support resources for guidance.
  5. Test and Monitor: Once the subdomains are set up and configured, thoroughly test them to ensure that they’re functioning as intended. Check for any errors or issues and monitor the performance of each subdomain over time. Make adjustments as needed to optimise the user experience and SEO impact.

Optimising Subdomains for SEO

Now that your subdomains are up and running, it’s time to optimise them for search engines.

Here are some key strategies to maximise the SEO benefits of subdomains:

  • Keyword Research: Conduct thorough keyword research for each subdomain to identify relevant search terms and topics. Use this insight to create high-quality, keyword-rich content that resonates with your target audience.
  • On-Page SEO: Optimise the on-page elements of each subdomain, including titles, meta descriptions, headings, and image alt tags. Incorporate target keywords naturally throughout the content while maintaining a user-friendly writing style.
  • Internal Linking: Implement a strategic internal linking structure between your main domain and subdomains to improve navigation and distribute link equity. Link relevant pages and content across subdomains to enhance the overall site architecture and SEO performance.
  • Mobile Optimisation: Ensure that each subdomain is optimised for mobile devices to provide a seamless user experience across all platforms. Responsive design, fast page load times, and intuitive navigation are essential for mobile SEO success.
  • Analytics and Monitoring: Use web analytics tools to track the performance of your subdomains, including traffic, engagement metrics, and conversion rates. Monitor key SEO indicators such as organic search rankings, backlink profiles, and crawl errors to identify areas for improvement.


In conclusion, subdomain SEO is a powerful yet often overlooked strategy for enhancing your website’s visibility and driving organic traffic.

By creating and optimising subdomains effectively, you can improve your site’s structure, user experience, and search engine rankings.

Follow the steps outlined in this guide to harness the full potential of subdomain SEO and take your website to new heights of success.

So, what are you waiting for? Start implementing subdomains into your SEO strategy today and watch as your website climbs the ranks of search engine results pages.

With the right approach and careful planning, subdomain SEO can be a game-changer for your online presence.


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