Host the Renderer behind a CDN
Domain management
When hosting behind a CDN, such as Cloudflare or Amazon CloudFront, you need to configure the CDN network, the Renderer, and Sitefinity CMS.
A typical CDN hosting configuration would look in the following way:
Configure the CDN provider
The CDN must forward to the Renderer and Sitefinity CMS a host header that contains the original host name.
RECOMMENDATION: We recommend setting this header value to X-Original-Host to comply with the setup described in Host Sitefinity CMS and the ASP.NET Core Renderer on the same IIS or Hosting configurations » Configure the Renderer for Azure App Services.
The Renderer automatically forwards this value to Sitefinity CMS. Afterwards, Sitefinity CMS uses the header value to build the absolute URLs.
Configure caching
By default, the responses from the Renderer are returned with a cache-control header value that allows requests to be cached on CDNs and public nodes.
For more information about further configurations, see Configure output cache.
CDNs respect this header and cache the response from the Renderer for the specified time.
Configure SSL offloading
If the CDN acts as an SSL offloader, you must configure Sitefinity CMS to build the absolute URLs, using the SSL offloading mechanism.
For more information, see SSL offloading.