That blocks all search engines, including Google, MSN, Yahoo, and so on, from indexing any files at the Office of the Director of National Intelligence's Web site. (Here's some background on the ...

Google's Webmaster Central has become a very important resource for anyone who has a Web site, works on a Web site, or, like SEO practitioners, helps others with their Web sites. Google continues to ...

A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

In the latest episode of Ask Google Webmasters, Google’s John Mueller goes over whether or not it’s okay to block special files in robots.txt. Google’s John Mueller answers a question about using ...

Are large robots.txt files a problem for Google? Here's what the company says about maintaining a limit on the file size. Google addresses the subject of robots.txt files and whether it’s a good SEO ...

Gary Illyes shared a nice little tidbit on LinkedIn about robots.txt files. He said that only a tiny number of robots.txt files are over 500 kilobytes. I mean, most robots.txt files have a few lines ...

A file extension is a suffix that is added to the end of a file name after a dot. It is usually two to four letters long. File extensions help Windows and other operating systems to know the standard ...