HTTP status codes cached by default

Fastly caches the following response status codes by default. In addition to these statuses, you can force an object to cache under other states using conditions and responses.

To cache status codes other than the ones listed above, set beresp.cacheable = true; in vcl_fetch. This tells Varnish to obey backend HTTP caching headers and any other custom ttl logic. A common pattern is to allow all 2XX responses to be cacheable:

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sub vcl_fetch {
  # ...
  if (beresp.status >= 200 && beresp.status < 300) {
    set beresp.cacheable = true;
  }
  # ...
}