Difference Between Subdomains and Subfolders: Explained

If you’re new to the world of website management and SEO, terms like “subdomain” and “subfolder” might sound a bit confusing. However, they play a crucial role in shaping your website’s structure and can impact your search engine rankings. In this article, we’ll dive into the key differences between subdomains and subfolders, helping you understand which one might be more suitable for your specific needs.    

What are Subdomains?      

A subdomain is essentially a separate section of your main domain. It acts as a prefix to your domain name and is typically used to create unique and distinct web addresses for different parts of your site. For instance, if your main domain is “example.com,” a subdomain could be “blog.example.com” or “shop.example.com.” Each subdomain can have its own independent content, layout, and functionality.   

Pros and Cons of Using Subdomains  


  • Isolation of Content: Subdomains allow you to keep different types of content separate. This can be particularly useful if you have diverse offerings, such as an e-commerce store and a blog.   
  • Enhanced Security: Subdomains can provide an added layer of security, as you can apply different security measures to each subdomain.    
  • Improved Organization: They offer a clear organizational structure, making navigation more straightforward for users.      


  • SEO Challenges: Subdomains are treated as separate entities by search engines, which means that the authority and ranking of your main domain might not directly benefit the subdomain.  
  • Higher Maintenance: Managing multiple subdomains can be more time-consuming and complex compared to subfolders.    
  • Cross-Subdomain Cookies: Implementing features that require cookies across subdomains can be tricky.   

What are Subfolders?      

Subfolders, also known as subdirectories, are divisions within your main domain. They are placed after the domain name and are used to categorize and organize content hierarchically. For instance, “example.com/blog” and “example.com/products” are examples of subfolders.  

Advantages and Disadvantages of Subfolders   


  • SEO Synergy: Subfolders benefit from the overall authority and ranking of the main domain. Any improvements in SEO efforts benefit the entire site, including subfolders.  
  • Simplified Management: Handling content, updates, and maintenance is generally easier within a single domain structure.    
  • Easier Cookie Handling: Cookies can be shared seamlessly across subfolders.     
  • Potential Content Mixing: If not organized properly, the content might mix within subfolders, leading to confusion for both users and search engines.   
  • Limited Isolation: Subfolders don’t offer the same level of content isolation as subdomains.      

SEO Implications of Subdomains vs Subfolders    

When it comes to SEO, the choice between subdomains and subfolders can significantly impact your website’s visibility and rankings. Subfolders tend to be more favorable due to their synergistic relationship with the main domain, whereas subdomains can dilute the authority and ranking potential of your primary domain.   

Which Should You Choose: Subdomain or Subfolder?      

The decision between subdomains and subfolders depends on your specific goals and the nature of your website. If you’re looking for a clear division of content or enhanced security, subdomains might be the right choice. On the other hand, if you prioritize SEO and simpler management, subfolders could be the way to go.    

Best Practices for Implementing Subdomains or Subfolders   

Regardless of your choice, there are some best practices to keep in mind:   

  • Clear Structure: Ensure that your chosen structure reflects the organization of your content.   
  • Proper Redirects: Use proper redirects when moving content between subdomains or subfolders.  
  • Consistent Branding: Maintain consistent branding across all sections of your website.     
  • Mobile Friendliness: Ensure that both subdomains and subfolders are optimized for mobile devices.     

Case Studies: Real-World Examples    

Let’s take a look at a couple of real-world examples to better understand the choice between subdomains and subfolders:    

Example 1: Blog vs Subdomain Blog    

In this case, a blog could be placed either as a subfolder (example.com/blog) or a subdomain (blog.example.com). If SEO is a priority, a subfolder might be better due to the potential synergy with the main domain.       

Example 2: Multilingual Content  

For websites with multilingual content, using subdomains (en.example.com, fr.example.com) could offer a clear separation. However, careful hreflang implementation is crucial to avoid duplicate content issues.        

Factors to Consider Before Making a Decision     

Before making a final decision, consider the following factors:     

  • Website Goals: What are your primary goals for the website? Consider factors like content division, branding, and user experience.        
  • SEO Strategy: Determine the level of importance you place on SEO and how it aligns with your chosen structure.   
  • Maintenance Effort: How much time and effort can you allocate to managing and maintaining your website’s structure?          

Common Misconceptions        

There are a couple of common misconceptions to dispel:   

  • Subdomains Rank Independently: While subdomains are treated as separate entities, they don’t necessarily rank entirely independently. The main domain’s authority can still influence subdomain rankings.      
  • Subfolders Lack Flexibility: Subfolders can be just as flexible as subdomains when it comes to content organization and customization.          


In the realm of website architecture and SEO, the choice between subdomains and subfolders is significant. While subdomains offer content isolation and potential security benefits, subfolders provide SEO synergy and simpler management. The right choice depends on your website’s specific needs and goals.

About the author

I am Aniket shaw. I like to learn about SEO and share my knowledge with the world. I am always ready to collaborate with great content ideas related to my niches. You can reach me via social media.