---
schema_version: "1"
id: 8ce5cab6a6e190c1b65f048724d5ce94d739f48686ac871c24fc15c13115c263
title: A Warning Was Added for Potential Custom Domain Disruption
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/release-notes/260-0-0/rn_security_domains_custom_edge_warning.md
canonical_url: https://help.salesforce.com/s/articleView?id=release-notes.rn_security_domains_custom_edge_warning.htm&release=260&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 5a2dcc5e082c3b3ba3efefec1517bd6619dede28d72a5ac203c526bcc4b9d8cc
description: If your custom domain can experience disruption when you move to Salesforce Edge Network, you see a warning on the My Domain Setup page.
products:
  - Cross Cloud Packages Solutions
release: "260"
---
# A Warning Was Added for Potential Custom Domain Disruption

If your custom domain can experience disruption when you move to Salesforce Edge Network, you see a warning on the My Domain Setup page.

**Where:** This change applies to Lightning Experience and Salesforce Classic in Enterprise, Performance, and Unlimited editions.

**Why:** A custom domain serves your site content on a domain that you own, such as https://www.example.com. When a third-party service or content delivery network (CDN) hosts a custom domain, the target host name for that domain changes when your org moves to Salesforce Edge Network. Until your third-party service or CDN updates that value, your custom domain stops working.

To reduce the risk of outages during the move to Salesforce Edge Network, we added a warning on the My Domain page when you edit the Routing and Policies section. If your org isn’t on Salesforce Edge Network and a third party serves at least one of the custom domains in the org, you see this warning.

![The warning message in a yellow box on the My Domain page.](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-salesforce_release_notes-260-0-0-production-enus/ba62a63b-6cd1-440e-8d24-e867afab0363/salesforce_release_notes/images/security/custom_domain_warning_edge.png)

**How:** If you see this warning, coordinate with your third-party service or CDN to update the target host name for your custom domain as part of your move to Salesforce Edge Network.

#### See Also

- [_Salesforce Help_: Considerations for Custom Domains That Use a Third-Party Service or CDN](https://help.salesforce.com/s/articleView?id=platform.domain_mgmt_external_host_considerations.htm&type=5&language=en_US)
- [_Salesforce Help_: Salesforce Edge Network](https://help.salesforce.com/s/articleView?id=xcloud.domain_name_edge_network.htm&type=5&language=en_US)