Hello, IBxAnders've just wrote an Blog entry to guide how to use Varnish for Output Caching for vBulletin Guest Pages (ie. index.php and content.php). URL: vbulletin.com/forum/entry.php?2440-vB4Mance-Part-5-Expert-Level-Boosting-vBulletin-Performance-with-Advanced-Caching I see LiteSpeed have a powerfuil Output Caching lite Varnish. But I don't know how to do with LiteSpeed. Could you please help to config this. Doing this will help much vBulletin Forum Owner can decrease high load by using LiteSpeed mod_cache. Thank you so much.