> For the complete documentation index, see [llms.txt](https://support.emarketeer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.emarketeer.com/guides/account-admin/domains.md).

# Custom domain

A custom domain replaces the default eMarketeer hostname in the links your account generates.

By default, the domain on your account is `app.emarketeer.com`. That hostname appears in every URL eMarketeer creates for you, including forms, landing pages, and email tracking links.

## Using a via-em.com subdomain as a custom domain

This is the preferred method, because it supports HTTPS. You can claim any unused subdomain of `via-em.com` to brand the links on your account, as long as no other eMarketeer account is already using it.

Example: `https://yourcompany.via-em.com/`


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