Hi, >> So is anybody aware of any applications that we can install behind >> our firewall that will crawl our Web pages and validate (XHTML 1.0 >> Transitional at this point, if that matters). I'm not 100% sure, but have you tried Tidy? http://tidy.sourceforge.net/ There is also listed a GUI App for Tidy: http://users.rcn.com/creitzel/tidy.html#tidyui You can download it and run it locally. regards, ------------------------------------------------------------ Nelson Rodríguez-Peña A. Web & Multimedia Design & Development nelson at webstudio.cl ------------------------------------------------------------