Custom Domains

Add custom domains

Adding Custom Domains

To avoid frustrating cookie issues and to enhance your branding, we encourage you to use a custom domain.

By default, you have a Frontegg Domain, which ends with By using this Frontegg Domain, however, you may encounter unwanted cookie issues and use a domain that is inconsistent with your brand.

Why Use a Custom Domain?

Avoid Cookie Issues

Some browsers block third-party cookies by default. Providing a custom domain as your application UI domain will give you the ability to support these browsers.

Enhance Your Brand

Instead of seeing in your domain, you might prefer to have your customers see your custom domain. For instance, when your customers use your application to login, your application might direct them to the following URL:

Rather than see a domain with in it, you might prefer that your customer see your domain instead.

Read below to learn how to configure a custom domain.

Configuring Custom Domains

To configure custom domains, your Frontegg portal, go to Environments ➜ [NAME OF ENVIRONMENT] ➜ Env Settings ➜ Domains.


Domain Limitation

Note that you can configure one custom domain per environment, and up to 2 domains in total. If you need to configure additional custom domains, contact us.

To configure a new custom domain, press Configure, and in the popup dialog box, insert your desired domain name to generate the CNAME record you need for your DNS configuration.

Configuring a new custom domain

Configuring a new custom domain

Add your desired domain url

Add your desired domain


Use Subdomain as Custom Domain

A common practice is to use a subdomains as the custom domain because if your app is hosted on and you have an existing A Record for that domain, you cannot use as a custom domain on Frontegg. Instead, use a subdomain as the custom domain, like

After adding the CNAME to your DNS configuration, click the Verify button. If Frontegg is able to verify the CNAME record, you will see a success message. After a successful setup, you should also see your custom domain listed on the Administration Page's Domain tab with a verified tag.

Verify your custom domain

Verify your custom domain


Custom Domains and Environments

Note that managing custom domains is performed for each environment separately.


SSL Certificate

Frontegg generates an SSL certificate for your custom domain.

Custom Domain in Frontend SDK

Note that when using a custom domain on Frontegg, That domain should also be passed in the baseUrl in the contextOptions of your Frontegg integrations package.


Possible Errors

In the setup, you may encounter an error if Frontegg is unable to verify your custom domain. If that happens to you, double check that you entered your CNAME correctly with your DNS provider and try again.