---
title: "Troubleshoot a broken custom domain link"
slug: "/help/demos/publish/faqs/broken-custom-domain-links"
last_updated: "2025-05-19T15:51:41Z"
zendesk_id: 25267557976851
zendesk_url: "https://help.walnut.io/hc/en-us/articles/25267557976851-Why-is-my-custom-domain-demo-link-broken"
locale: "en-us"
category: "Getting Started"
section: "FAQs"
product: "demos"
topic: "publish/faqs"
displayed_sidebar: "demosSidebar"
sidebar_position: 12
tags: ["Custom Domains"]
---

Encountering the following error message may suggest that your CNAME record has been unintentionally deleted.

![](pathname:///images/345f0bc4f3b49f9e.png)

To ensure seamless access to demos under your custom domain, an active CNAME record pointing to custom-domain.teamwalnut.com is crucial.

If this record is inadvertently deleted, it will result in DNS errors for demo URLs associated with the custom domain.

### Important Note 📝

-   You can still access each demo using the default Walnut prefix, even if the custom domain encounters an issue.