You may see blocked Datadog requests in the browser console on your checkout page. Nothing is broken for your guests.
Why this happens. HomeRunner pages do not load Datadog and do not set a restrictive Content Security Policy, so nothing on your website is blocking those requests. The Datadog calls originate inside the Guesty Pay payment iframe, which runs its own monitoring under its own security policy. Any blocked-request messages it logs are contained to that iframe and do not affect checkout or your site’s analytics.
What to do. You do not need to do anything. No whitelisting or configuration change is needed on your website.