Hello, How does the 'default' keyword for cache_peer work exactly? - the 'default' is always tried first, and then for that cache_peer the cache_peer_access rules are applied. - A list of cache_peers which are allowed is generated from the cache_peer_access rules, and then the default is tried first. - Otherwise? Reason for asking: I want separate parent proxies for http and https. For both protocols I want to enable a cold standby parent, which should only be accessed when the default parent is considered 'dead' by Squid. Can I mark both the primary http parent and the primary https parent as default, and use cache_peer_access to deny http to the https parents, and to deny https to the http parents? Joost