HubSpot Custom Domains Guide

Managing custom domains in HubSpot helps you publish professional, branded content across your website, blog, and landing pages without relying on generic subdomains.

This guide explains how custom domains work, how they differ from subdomains, and the exact steps to connect them inside your account.

What Is a Custom Domain in HubSpot?

A custom domain is a unique, branded URL that identifies your website on the internet. When you connect it to HubSpot, your content is served from that domain instead of a default system domain.

For example, you might publish content on:

• www.yourcompany.com for your main website
• blog.yourcompany.com for your blog
• offers.yourcompany.com for landing pages

Using custom domains lets you keep a consistent brand experience and improves trust with visitors.

How HubSpot Handles Domains and Subdomains

Inside HubSpot, you can connect top-level domains and subdomains, then assign them to specific tools such as pages, blog, and knowledge base.

Domain structure in HubSpot

Each URL connected to HubSpot contains three main parts:

• Protocol: https://
• Subdomain: such as www or blog
• Root domain: such as yourcompany.com

A full URL to a page might look like https://www.yourcompany.com/pricing.

System domain vs. custom domain

Every account is given a system domain that HubSpot uses internally to host content and test pages. Custom domains are the branded URLs you connect for real visitors.

The system domain is not meant for public marketing use; instead, you map your custom domains so visitors always see your brand.

Types of Domains You Can Use with HubSpot

You can configure several domain types depending on your subscription and content strategy.

Primary domains

A primary domain is the main domain used for a specific content type. HubSpot allows you to set one primary domain per content tool, such as:

• Website pages
• Landing pages
• Blog
• Email subscription preferences pages
• Knowledge base

All new content of that type will publish on the assigned primary domain by default.

Secondary domains

Secondary domains are additional custom domains available to publish content in certain tools. They are useful when you manage multiple brands or regional sites within one HubSpot account.

Secondary domains can be connected and used for content, but they are not the main default domain for any tool.

Redirect domains

Redirect domains are domains that automatically forward visitors to another connected domain. In HubSpot, these are ideal when you:

• Retire an old domain
• Consolidate multiple brand URLs
• Handle common misspellings of your main domain

Redirects help preserve traffic and prevent broken links.

Before You Connect a Domain to HubSpot

Plan your domain setup and make sure you have access to DNS settings with your domain provider.

Information you need

• Your root domain (for example, yourcompany.com)
• The subdomains you plan to use, such as www, blog, or info
• Login credentials for your DNS provider or registrar

Confirm that the domain is not already pointed to another platform you still need for live production. If you are migrating to HubSpot, schedule the change during a low-traffic window.

How to Connect a Custom Domain in HubSpot

The domain connection process is guided inside your account and requires a few DNS changes at your registrar.

Step 1: Open the domain settings

1. Sign in to your account.
2. Navigate to Settings.
3. Locate the Domains & URLs section.
4. Click the button to connect a new domain.

Step 2: Choose what you want to connect

HubSpot prompts you to select the type of content that will use this domain. For example:

• Website and landing pages
• Blog
• Knowledge base
• Email web version and subscription pages

Select the tools you plan to use now; you can adjust them later if your strategy changes.

Step 3: Enter your domain and subdomain

Type the subdomain and root domain you want to connect, such as www.yourcompany.com or blog.yourcompany.com. The setup wizard will show you which DNS records are required for that specific configuration.

Step 4: Update DNS records at your provider

Next, sign in to your DNS provider or registrar. You will usually add or edit:

• CNAME records for subdomains like blog or info
• A records or other required records depending on your provider

In another browser tab, keep the HubSpot wizard open so you can copy the exact hostnames and values to paste into your DNS settings.

Step 5: Verify and complete the connection

After you update DNS, return to the setup wizard and choose the option to verify. DNS can take some time to propagate, so verification might not be instant.

Once verification succeeds, your custom domain will appear in the domain list with a connected status. You can then assign it as a primary, secondary, or redirect domain depending on your needs.

Managing Multiple Domains in HubSpot

As your marketing footprint grows, you may work with several domains within a single account.

Assigning primary domains to tools

From the domain settings, you can specify which domain serves as the primary one for each content type. For example, you might use:

• www.yourcompany.com as the primary website domain
• blog.yourcompany.com as the primary blog domain
• help.yourcompany.com as the primary knowledge base domain

HubSpot will automatically route new content for each tool to its primary domain.

Using redirect domains for consolidation

If you have older URLs or alternate domains, you can connect them as redirect domains. Then, set up redirects so all traffic resolves to your main properties, keeping your experience consistent.

SEO and Branding Benefits of Custom Domains

Connecting branded URLs directly into your account supports search visibility and user trust.

• Brand recognition: Visitors see your brand at every touchpoint.
• Better tracking: Analytics remain unified across website, blog, and conversion pages.
• Clean URLs: You avoid generic or technical-looking system addresses.

When combined with a thoughtful content strategy, this structure helps search engines understand your site hierarchy and improves overall performance.

Advanced Resources for Working with HubSpot Domains

To go deeper into domain setup and technical details, review the original documentation on custom domains and related configuration options.

If you want help designing a multi-domain strategy, agencies like Consultevo can assist with planning, migrations, and implementation.

By properly connecting and managing your custom domains, you ensure that every page, post, and knowledge article published from your portal appears under a consistent, professional brand identity, supported by the full set of tools available in your account.

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