Hi guys, I was working on my one of the site as I have seen one confusing result in it. The issue was most of header checker tools are giving me "200" status in return as they just use weak validators. (not considering HTML code). While Strong validators are returning "206" code surprisingly. As I have checked everything I found nothing special on page except one thing that is "Class name" of CSS file. So at some moment mine HTML code is like this. <td class = "headerbar">text</td> So there are 3 sites from them I have used this class in one site which is returning 206 code has this class name. So is anybody has any ideas & thoughts on it..? thnks in advance.