On 08/31/11 9:32 AM, Always Learning wrote: > Wrong. Some can be determined by machine searching for 'known' invalid > URL strings which are not remotely similar to valid web page names. there's an infinite number of invalid strings, and only a finite number of valid ones. anyways, your webserver already filters these out, its not going to respond to an invalid URL with anything other than '404'. thats its job. -- john r pierce N 37, W 122 santa cruz ca mid-left coast