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Cache Control

Cache control helps manage how content is cached and served to users, improving website performance and reducing the load on origin servers.

General Configuration​

Users can add, edit, disable, or delete cache control policies for your website. The general configuration includes:

  • Policy Name
  • URL Path: Configure the specific URL path(s) to which the policy applies.
  • TTL (Time to Live): Configure the time length (seconds) of caching the origin content.
  • Priority: Configure the priority of the policies. By default, the policy configured with no priority has the highest priority, with higher numbers indicating higher precedence.
  • Enable X-Cache: When enabled, all responses from the edge will have an X-Cache header with values like "HIT from da01.xy01.swiftserve.com", indicating whether the response was served from the cache (at least partially).
  • Ignore No Cache from Origin Server: When enabled, the CDN server still caches all contents from the origin regardless of the header of the response being configured as no-cache. The ignored headers are: Cache-Control, Authorisation, Set-Cookie, Expires and Pragma.
  • Ignore No Cache from Client: When enabled, the CDN server will ignore clients' no-cache header(s).
  • No Cache: When enabled, the CDN server will not cache the contents from the origin regardless of the header of the response being flagged as cachable. The ignored headers are: Cache-Control, Authorization, Set-Cookie, Expires and Pragma.
  • Disable Auto-Compression: When enabled, the CDN server will not automatically compress the contents with gzip.
  • Ignore Query String: When enabled, the CDN server will ignore all URL query strings when caching an object.

Customized Response Header​

Users can configure the operation type for the customised response header.

Vary for Images​

Configure Vary in the HTTP response header to ensure different user agents are served with compatible content types.

Advanced Settings​

For more granular control over cache behaviour, the following options are available:

  • Allowed Referers: Configure a list of specific domains or domain suffixes separated with commas.
  • Allowed Origins: Configure a list of specific domains or domain suffixes separated with commas.

The configured policies help improve performance and ensure the contents are served efficiently and securely.