I have many pages from one year ago that were deleted and are returning a 404 error code, but two week ago after I cleared the content of my robots.txt, the errors in my Google Webmaster Tools reports ...
I see many websites, seemingly arbitrarily adding the no cache meta tag on every page. Like this: <META HTTP-EQUIV="PRAGMA" CONTENT="NO-CACHE"> <META HTTP-EQUIV="CACHE-CONTROL" ...
A website I'm currently working on is http://www.troubi.com . Please don't care to look at the source code. If I validate the website through the w3cValidator a lot of errors occur all due to ...