The following parameters could be set for the tag pages of your site:

1. Tag page URLs: how to format the URL of the tag directory
   • Use param: E-g: http://example.com/index.php?tag=mytag
   • Use extra-path: Use URL path prefix only (recommended). E-g: http://example.com/index.php/tag/mytag
   • Use extra-path: trailing dash. E-g: http:/example.com/index.php/mytag-
   • Use extra-path: trailing colon. E-g: http:/example.com/index.php/mytag:
   • Use extra-path: trailing semi-colon (NOT recommended). E-g: http:/example.com/index.php/mytag;
2. Prefix: let you add a custom prefix before the tag in the URL.
3. Rel attribute: check to add rel="tag" attribute to tag links.
4. Make canonical:
   • 301 redirect to canonical URL when possible: if the detected canonical URL of the tag is different from the current URL, a 301 redirect will be done.
   • Use rel="canonical" whenever necessary
   • Use rel="canonical" even when not necessary (self-refering): in the case when the 301 redirect is unavailable, a canonical link element is inserted in the page.

5. Indexing: let you decide if you want to keep robots away from the tag pages.

   • META NOINDEX for tag pages without intro
   • META NOINDEX for tag pages with an intro

   You can see below how these settings work:
   

   

5. Post contents:
   • Post excerpts: display only the excerpt of each post.
   • Standard post contents (stopping at "[teaserbreak]"): display only the teaser of each post.
   • Full post contents (including after "[teaserbreak]"): display the whole content of each post.
6. Posts per page: let you decide how many posts would you like to display on each page of the directory.