Every file that we have saved on our computers has a particular extension. The file extension is added at the end of the filename followed by a dot (.). It tells the operating systems about the ...

SEOmoz discovered that ending your URLs with a .0 will prevent your pages from being found in the Google index. That means we need to add the .0 to the list of file extensions you should avoid using.

One of our readers reported that all the file extensions have changed to some unknown file format. If so, it could be a virus! If a virus has changed all the files extensions to unknown applications, ...