There are certain files that various web agents expect to find at predefined URLs on your server. Drupal provides some of these files at fixed locations within the Drupal distribution. That is, these files are actual files stored on the filesystem, not paths whose content Drupal generates. This can cause issues when working with multi-site Drupal instances, since often each site needs its own copy of these files. In this section we will look at modules that solve this problem for two specific types of file, namely, favicons and robots files.
Favicons ("Favorite Icons"), the little images that show up on browser tabs and in bookmarks, are one example. Some web agents assume these files will be accessible at your site's root with the name favicon.ico
, for example http://example.com/favicon.ico.