What is a subdomain and how to add one to your Duda website

April 15, 2025
0 minute read

The internet is full of hidden layers, and subdomains are one of them. You’ve probably visited subdomains countless times without even realizing it. Whether it's blog.example.com, or support.example.com, subdomains are everywhere, yet they remain one of the most misunderstood elements of website structure.


So, what exactly is a subdomain? Is it just another part of a website, or does it serve a bigger purpose? And more importantly, how do subdomains impact SEO, branding, and user experience?


In this guide, we’ll uncover the unknown world of subdomains, explaining:


  • What a subdomain is and how it works
  • The benefits of using a subdomain
  • Common use cases for subdomains
  • The difference between a subdomain and a subdirectory
  • How subdomains impact SEO (with insights from Google’s John Mueller)
  • Step-by-step instructions to add a subdomain to your Duda website - based on a  video tutorial - to watch the video:

Let’s get started.


What is a subdomain?


A subdomain is a part of your website URL that comes before your main domain and helps organize content into separate sections.


For example:


  • Main domain: example.com
  • Subdomain: blog.example.com


Even though the subdomain is linked to the main domain, search engines and web browsers treat it as a distinct site with its own content and structure.


How do subdomains work?


Subdomains function as separate websites within a single domain. You can assign unique content, layouts, and functionalities to them while keeping them connected to the primary domain.


They are particularly useful when a website needs to host specialized content or services that don’t fit neatly into the main site’s structure.


Benefits of using a subdomain


Adding a subdomain to your website comes with several advantages, depending on your business needs. Here are some key benefits:


1. Better content organization


A subdomain allows you to separate different parts of your website, making it easier for users to navigate and find relevant content.


For example:


  • support.example.com for customer support
  • academy.example.com for educational courses


2. Customization & branding flexibility


Subdomains can have different designs, content structures, and even CMS platforms from your main site. This is useful for businesses with multiple brands or services under one umbrella.


For example:


  • A SaaS company might use app.example.com for its product dashboard.
  • A restaurant chain might use order.example.com for its online ordering system.


3. Improved website performance


Keeping resource-intensive sections (like learning platforms or large media libraries) on a subdomain can reduce the load on your main website, improving speed and reliability.


4. Enhanced user experience


Subdomains make it easier to provide a tailored experience for different user segments. For example:


  • us.example.com and uk.example.com can serve country-specific content.
  • members.example.com can provide exclusive access to subscribers.


5. Separate SEO & marketing strategies


A subdomain lets you target specific keywords, audiences, or regions without affecting your main website’s SEO strategy. You can also run different paid ad campaigns for the subdomain.


For example:


  • blog.example.com can focus on content marketing and SEO.
  • events.example.com can highlight upcoming company events and webinars.


6. Easier testing & development


Developers use subdomains to create staging environments where they can test new features before launching them on the main site.


For example:


  • beta.example.com for testing new product versions.
  • dev.example.com for internal development.


Subdomain vs. Subdirectory: What’s the difference?


Many wonder whether they should use a subdomain or a subdirectory for different sections of the site. While both options organize content, they serve distinct purposes. A subdomain is essentially a separate branch of your main website, functioning as an independent entity. For example, blog.example.com is a subdomain that can operate on different platforms or have a unique design while still being part of the main brand.


On the other hand, a subdirectory (or subfolder) is a section within your main domain, following the structure of example.com/blog or example.com/store. Unlike subdomains, subdirectories inherit the authority and SEO benefits of the main domain since all content remains under one roof. While subdomains are useful for separating different types of content or services, subdirectories are often preferred for maintaining strong SEO continuity across a site.


To sum it up:


  • Use a subdomain if you want a completely separate section with its own branding, structure, and content.
  • Use a subdirectory if you want your content to benefit from your main site’s SEO strength.


Now that we’ve explored the difference between subdomains and subdirectories, it’s time for the million-dollar question: How do subdomains impact SEO?


So, how do subdomains affect SEO anyway?


The impact of subdomains on SEO has been a long-standing debate in the digital marketing world, and even Google’s own experts have weighed in on the discussion. Rather than taking a definitive stance, Google has provided insights that suggest subdomains are neither inherently good nor bad for SEO—but they do require careful implementation.


Google’s John Mueller has addressed this topic multiple times. In one statement, he clarified that Google treats subdomains separately from the main domain, meaning they need to be crawled and indexed individually. He explained in Google Search Central:


“You’ll need to verify subdomains separately in Search Console, make any changes to settings, and track overall performance per subdomain… We do have to learn how to crawl them separately, but for the most part, that’s just a formality for the first few days.”
John Mueller Search Advocate

This suggests that while Google does recognize subdomains as part of a larger site, they don’t automatically inherit authority from the main domain. Instead, each subdomain must build its own SEO strength over time.


Additionally, Google has repeatedly stated that using a subdomain vs. a subdirectory won’t make or break your rankings - it all depends on how the content is structured and whether it provides value to users. However, some SEO professionals argue that consolidating content under one domain (via subdirectories) helps maintain authority, while others successfully use subdomains to separate different types of content, such as blogs, eCommerce stores, or support portals.


Ultimately, Google’s view comes down to this: subdomains can rank just as well as subdirectories if optimized properly. However, they require separate SEO efforts, including link-building, keyword optimization, and tracking in Google Search Console.


If you use a subdomain, follow these best practices:


  1. Verify your subdomain in Google Search Console.
  2. Submit a sitemap for the subdomain.
  3. Build backlinks to the subdomain for better authority.
  4. Ensure internal linking between the main domain and subdomain.
  5. Monitor performance separately in Google Analytics.


So, while subdomains aren’t inherently bad for SEO, they come with additional considerations. The key is to use them strategically and ensure they serve a clear purpose for your client’s site.


How to add a subdomain to your Duda website?


Adding a subdomain in Duda is simple. Follow these steps:


Step 1: Log into your Duda account


Go to your Duda dashboard and navigate to SEO Settings.


Step 2: Change your URL


  • Find Site Domains in the bottom-left menu.
  • Click Change URL and enter the desired subdomain (e.g., blog.yourwebsite.com).


Step 3: Update your DNS settings


  • Go to the DNS provider.
  • Add a CNAME record pointing the subdomain to the Duda site.
  • Unlike a main domain, a subdomain only requires a CNAME record.


Step 4: Save and verify


Once the DNS settings update (which can take a few hours), the subdomain will be live!


Final note 


Subdomains can be a powerful tool for organizing a website, creating separate content experiences, and expanding the business. However, they require separate SEO efforts since Google treats them as independent websites.


Before deciding between a subdomain or subdirectory, consider your client’s goals:


  • If you want content to benefit from the main site’s SEO, use a subdirectory.
  • If you need a distinct website section, use a subdomain.


If you’re using Duda, setting up a subdomain is quick and easy. Just make sure to configure your DNS correctly, and you’ll be ready to go!

Headshot of Renana Dar

Senior Content Writer, Duda.


Did you find this article interesting?


Thanks for the feedback!
A screenshot of a plumber's website with a
By Renana Dar May 5, 2025
Many SMBs still hesitate to embrace eCommerce. As the agency partner, you have the opportunity to tear down the perceived walls of eCommerce and show clients how eCommerce can make their business more efficient, accessible, and profitable. Read all about it!
A computer screen with a graph on it and a purple background.
By Santi Clarke April 24, 2025
Learn how platform ecosystems drive revenue and why they are essential for the growth of SaaS businesses.
By Santi Clarke April 24, 2025
One of the greatest challenges for SaaS platforms is keeping users engaged long-term. The term “stickiness” refers to a product's ability to retain users and make them want to return. In the context of SaaS platforms, creating a sticky product means that users consistently find value, experience seamless interactions, and continue using the product over time. The following are 7 practical strategies you can take to improve the stickiness of your SaaS solution. 1. Offer websites that help customers build their digital presence One of the most effective ways to make your SaaS platform sticky is by offering websites to your users. Many businesses today need an online presence, and by providing a platform where your customers can easily build and manage their websites, you increase their reliance on your product. When you offer users a website-building solution, you’re helping them create something foundational to their business. Websites, in this case, aren’t just a tool—they become a part of their identity and brand. This deepens their engagement with your platform, as they need your product to maintain and update their site, ultimately making them less likely to churn. Plus, websites naturally encourage frequent updates, content creation, and customer interactions, which means your users will return to your platform regularly. When you can give your users the tools to create something so essential to their business, you make them more dependent on your platform. This creates a higher barrier to exit, as migrating a fully built website to another service is no small task. In fact, websites are some of the stickiest products you can sell, so adding them to your product portfolio can be one of the best decisions you can to keep your customers using your technology for the long haul. 2. Deliver continuous value through product innovation The key to keeping users coming back to your SaaS platform is ensuring that they consistently see value in it. This means not only meeting their immediate needs but also evolving to address their growing demands. Constant product innovation is essential for keeping your users satisfied and invested in your platform. One way to achieve this is through regular updates that add new features or improvements based on user feedback. A SaaS platform that evolves with its users will keep them engaged longer, making it harder for competitors to steal their attention. Encourage user feedback and prioritize updates that create tangible improvements. This creates an ongoing relationship with your users, which boosts stickiness. 3. Offer a multi-product solution Another powerful way to increase your platform’s stickiness is by offering a suite of products or features that integrate well together. When your users adopt multiple products, they are more likely to stay because they become embedded in your ecosystem. The benefits of this strategy are clear. Research shows that once users adopt more than one product, especially when they integrate >4 tools into their workflow, their likelihood of churn decreases significantly. This happens because the more a user integrates into your suite of products, the harder it is for them to switch to a competitor. These users have invested time in learning your ecosystem and rely on it for their day-to-day operations, making it much harder for them to make the switch. 4. Create a personal connection with your users Human connection is one of the most powerful drivers of user retention. People don’t want to feel like they’re using a cold, faceless platform. By offering exceptional customer support, personalized communication, and community engagement, you build a relationship with your users that goes beyond the product itself. Make sure your support team is responsive, knowledgeable, and empathetic. You can also consider offering tailored onboarding experiences to ensure users understand how to make the most of your platform. When users feel like their success matters to you, they are more likely to remain loyal. 5. Leverage data to personalize the user experience Using data to drive personalization is another strategy that can significantly increase the stickiness of your platform. By tracking user behavior and usage patterns, you can tailor the experience to each individual user’s needs. This could mean recommending features they haven’t yet explored or sending them reminders about tools they may not be fully utilizing. Personalization gives users the feeling that the platform was designed specifically for them, making it harder to walk away from. By demonstrating that you understand their unique needs, you can build a stronger connection and ultimately increase retention rates. 6. Focus on seamless integrations and API capabilities To further increase stickiness, consider expanding your product’s ability to integrate with other tools your users already rely on. Whether it’s email marketing software, CRM systems, or social media management tools, seamless integrations add tremendous value by making it easier for users to incorporate your platform into their existing workflows. The more your product can work in tandem with other popular tools, the more indispensable it becomes. In fact, users who depend on integrations are less likely to churn since their entire ecosystem is tied to your platform’s functionality. 7. Encourage user advocacy and community building User advocacy is another powerful tool in building a sticky product. When users feel a sense of community or even ownership over the platform, they become your most passionate promoters. Encourage your users to share their success stories, join community forums, or contribute to product development through beta testing or feedback loops. A thriving user community not only increases user engagement but also creates a sense of loyalty. When users are part of something larger than themselves, they are more likely to remain committed to your platform, reducing churn and increasing lifetime value. Create deep, lasting customer relationships Making your SaaS platform sticky is all about creating a deep, lasting connection with your users. This requires building a platform that continuously delivers value, creating a seamless and personalized experience, and integrating features that keep users coming back. By focusing on product innovation, offering a multi-product ecosystem, and fostering strong user relationships, you’ll be well on your way to reducing churn and boosting user retention. Stickiness isn’t just a nice-to-have; it’s essential for long-term success. Focus on creating a platform that users can’t imagine living without, and you’ll see them stick around for the long haul.
Show More

Latest posts