To deliver a consistent user experience regardless of a user’s location, Salesforce is migrating custom domains that serve Experience Cloud sites to the Salesforce Edge Network infrastructure. To prepare, update your allowlists to include the latest Salesforce IP ranges.
Where: This change applies to custom domains serving Aura, LWR, and Visualforce sites accessed through Lightning Experience and Salesforce Classic in Enterprise, Performance, Unlimited, and Developer editions. It applies only to custom domains with the HTTPS option, “Salesforce serves the domain over HTTPS on Salesforce’s servers using your HTTPS certificate.”
Prepare for Your Custom Domain to Use Salesforce Edge Network