W3C Validation Yields Different Results on Different Computers with Same Settings in Dreamweaver

Can I ask why you're still using the old XHTML doc type? 

HTML5 is the defacto web standard.  It has been in place since October 2014.

There are 2 validation services now.  NU is specifically for HTML5 doc types and the old one checks  X/HTML docs.   See links below.

HTML - http://validator.w3.org/

HTML5 - https://validator.w3.org/nu/

Depending on which DW version and build you have, your validation tool might be using the old one or the new one.  I can't remember when/if they sent out a validation service update for 2015.  

Nancy

Cult_Leader  wrote My co-worker and I are both using Dreamweaver CC 2015, and attempting to validate pages for XHTML compliance using the integrated W3C validation tool.  We both have it set to use HTML5 if no DOCTYPE is detected, to display errors and warnings, and with no errors or warnings filtered. The documents we're validating DO include XHTML DOCTYPEs, so I'd expect the same results regardless of the computer that the code was being validated on, but we're getting drastically different results.  When he validates a particular document, he gets no errors or warnings while I get 22 errors and 3 warnings.  When I use the W3C's online validator (The W3C Markup Validation Service ) rather than going through Dreamweaver, and validate by direct input, I get no errors.  Would there be another setting somewhere besides Edit > Preferences > W3C Validator that would be affecting my results? Thanks, Michael Murawski

I dont think the integrated validation tool was ever to be taken that seriously. Its best to check final validation on the W3c site.