At eZ we have been lucky to work with so many talented developers in the PHP and Symfony community, and one of the many projects we have so far contributed to and also benefitted from is FOSHttpCache. A super charged Http Cache implementation with tagging of content, varying of cache by user cache, support for Varnish, Symfony Proxy and Nginx, and much more. But it can still be improved, multi tagging support for Symfony Proxy, and Stale cache handling on purges by tags are two currently missing features for handling all possible high load situations while also being easy to use. Talk builds upon previous talk: Going crazy with HTTP caching - SymfonyLive Paris 2015