>what mean redirect_children. First hit on goggle explains it well:) Its in the config manual: Tag Name redirect_children Usage redirect_children number Description This tag is used to set the number of redirect processes to spawn Default redirect_children 5 Example redirect_children 10 Caution If you start too few Squid will have to wait for them to process a back log of URLs, slowing it down. If you start too many they will use RAM and other system resources.