How to add a custom domain to Dub.co

Learn how to add a custom domain to Dub.co for free - no credit card required.

Steven Tey

Written by Steven Tey

Dub.co is the only link management platform that allows you to add custom domains for free. The number of domains that you can add depends on your plan:

This guide will show you how to add a custom domain to Dub.co.

Prerequisites

Before you begin, you'll need the following:

Step 1: Add a custom domain

First, log in to your Dub.co account.

Don't have a project yet?

  1. Navigate to the Dub.co Dashboard and click on the Create project button.
  2. Enter the domain you want to use under the "Shortlink domain" input and click Create project.
The project creation modal in Dub.co
The project creation modal in Dub.co

Already have a project?

If you already have a project and are looking to add another domain to it:

  1. Navigate to your project's Domains page – you can do that by clicking on the Domains link in the menu bar at the top of your project dashboard.
  2. Click on the Add Domain button.
  3. Enter the domain you want to use and click Add domain.
The Add Domain modal in Dub.co
The Add Domain modal in Dub.co

Step 2: Configure your domain

After adding your domain, you'll be presented with a DNS record that you'll need to add to your domain's DNS settings.

Setting up DNS records for your domains on Dub.co
Setting up DNS records for your domains on Dub.co

Adding an apex domain

If you're adding an apex domain (e.g. example.com), you'll need to add an A record with the following values:

  • Name: @ (or leave it blank)
  • Value: 76.76.21.21
  • TTL: 86400 (or the highest value possible)

Adding a subdomain

If you're adding a subdomain (e.g. go.example.com), you'll need to add a CNAME record with the following values:

  • Name: go (or whatever subdomain you want to use)
  • Value: cname.dub.co
  • TTL: 86400 (or the highest value possible)

Note that we do not support using www. as a subdomain, since the www. subdomain will always redirect to the apex domain instead.

We recommend using the following variations for your subdomains:

  • go.example.com
  • try.example.com
  • links.example.com
  • l.example.com

If you're using Cloudflare as your DNS provider, you might need to configure some extra steps for it to work properly. Please refer to our guide on using Cloudflare domains with Dub.co for more information.

Step 3 (optional): Verify domain ownership

This step is only applicable if you are adding a domain that is currently being used on Vercel.

Since we use Vercel as the DNS provider for Dub.co, you'll need to verify that you own the domain before you can add it to your Dub.co project.

Verifying domain ownership on Dub.co
Verifying domain ownership on Dub.co

To do that, you'll need to add a TXT record with the following values:

  • Name: _vercel
  • Value: vc-domain-verify=go.yourdomain.com... (the value will be provided to you on the Dub.co dashboard)

Warning: If you are using this domain for another site, setting this TXT record will transfer domain ownership away from that site and break it. Please exercise caution when setting this record.

For example: Make sure that the domain that is shown in the TXT verification value (e.g. go.yourdomain.com) is actually the domain you want to use as a custom domain on Dub.co – and not your production site.

How long do I have to wait for my domain to work?

Domain configuration can take anywhere between 1 to 24 hours to complete. If your domain still doesn't work after 24 hours, please send us an email and we'll be happy to help you out.

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