Fastly Purge a single domain and it's content from a Fastly service with multiple domains One of the current limitations of Fastly is that you cannot purge a single domain from a service, without dropping the entire cache. This post will explore a solution to this.
Caching CORS, Cache poisoning and the Vary HTTP header Understanding the Vary header is key ensuring CORS will work with CDNs and caching.
Drupal Dynamic content caching based on attributes in Drupal 7 Simple code to maximise your varnish hitrate
