Handles a few basic SEO related improvements such as:
For production use the latest stable release
It has been reported to work on PS >= 18.104.22.168 but it should work on PS 1.6.x.x too and could work on PS >= 22.214.171.124 too. If you succesfully use this module on some older version please report
<meta rel="canonical"> html tag to avoid content duplication
Query string is removed only when needed, pagination is retained and handled (an existing "prev/next" mechanism is needed, newer PS already does it)
Handle multilingual sites.
<meta rel="hreflang"> html tag, a default lang is handled too.
hreflang meta is only added on canonical pages, as explained in the following image and explained by Eoghan Henn
Automatically assure a
<meta robots="noindex"> tag is added to every PS controller that should not been indexed by search engines.
This allows for big "robots.txt" cleanup .. and a better SEO
The phylosophy is "Don't use robots.txt to tell robots to do not index a page, it should be used to block them .. it's different"