1. From Setup, enter Domains in the Quick Find box, and then select Domains.
2. Next to your custom domain, click Edit for your custom domain.
3. Select Salesforce serves the domain over HTTPS, using a Salesforce content delivery network (CDN) partner and a shared HTTPS certificate and click Save.Akamai is the CDN partner.The Community Cloud CDN provisioning process and can take 2–6 hours. The Provisioning Status field changes from Provisioning to Awaiting Activation when complete. You receive an email when the process is complete. No downtime or disruption is expected during the provisioning process.Note Changing to the Salesforce CDN affects SAML Single Sign-On Settings for all custom URLs in that domain. Reconfirm the SAML Single Sign-On Settings for each HTTPS custom URL in that domain after activating the change. Login Settings are available in Community Workspaces under Administration | Login & Registration.
4. Activate your domain.Your community can be unavailable for 10–15 minutes so provision and activate the Community Cloud CDN when your community traffic is low. The Provisioning Status field changes from Awaiting Activation to Complete.