Thttpd
From LinuxReviews
Jump to navigationJump to searchThttpd is a really small and very fast multiplexing webserver.
Why you want it[edit]
thttpd doesn't do PHP or anything even remotely fancy. It just servers static objects and it does a very good job of doing so without using a whole lot of resources.
If you need to offload your normal webserver for serving static parts of pages such as images, etc, then thttpd is much likely for you.