Meaning for Robots.txt:
Robots.txt is a text (not html) file you put on your site to tell search robots which pages you would like them not to visit. Robots.txt is by no means mandatory for search engines .
you are interested to learn more about it, visit http://www.robotstxt.org/ or you can go straight to the Standard for Robot Exclusion.
Robots.txt file is a file that gives the Search Engine crawlers the right instructions. E.g such as where is the sitemap.xml file and where to not follow.
Robots.txt file allows or prevents Search engine crawlers to enter your site. It is like a instruction manual or a map for the crawlers to know where to crawl.
What they're telling you is that the internet archive did not archive the site due to a preference set in that site’s robot.txt file.
The robot.txt file is checked by spiders, like the way back machine, to determine whether or not the site’s owner wants that particular spider to index their site.
robots.txt basically tells search engine spiders not to index certain areas of your site. You can protect private areas of sites from being visible to search engines, and thus to everyone.
Robots.txt is used for giving instructions about their site to web robots. It resides under our site root directory. In my own experiences, it might be also a leak for our sites since it is only a plain text file and would be found easily by hackers.
robots.txt is a text file which can be used to restrict web robots to accessing your web site only in ways of which you approve.
The robots.txt file is a simple text file (no HTML), that must be placed in your root directory, for example:
To make a robots.txt file you don't need any special knowledge. Just an ordinary Notepad application. Try to google this term and you'll find lots of examples with an explanation of what each line means. And you'll easily compose one for yourself.
If you do not know what robots.txt are, chances are you are better off not specifying them in your code. As you could get into trouble by not having your site pages crawled... and I mean EVERY page
If you do not know what robots.txt are, chances are you are better off not specifying them in your code. As you could get into trouble by not having your site pages crawled... and I mean EVERY page
SE's don't need to crawl every page. For example, do they need to crawl your website's terms of service or privacy policy? Or how about a co-branded promo page that you know is only going to be 'live' for an extended period of time?
Not every page needs to be indexed and crawled by the Search Engines. In fact, it would be great for the WWW if webmasters were more selective of the pages they allowed the SE's to access. There would be a lot less glut out there. Think of all the rack space Google and Bing could save! Everyone... Go Green.. Use Robots.txt! ;)
robots.txt is basically used to tell the crawler where to crawl and which section you don't need to be crawled. While optimizing your site you can keep this text file under your root directory.