/filters:quality(90)/prod01/production-cdn-pxl/media/umassdartmouth/university-marketing/web-development/t4-user-guide/userguide-re-canonical-1.png?text=945+WebP)
content type tid 375 showing a section selected for rel canonical tag
What is it
A canonical tag (aka "rel canonical") is a way of telling search engines that a specific URL represents the master copy of a page. Using the canonical tag prevents problems caused by identical or "duplicate" content appearing on multiple URLs. [source - moz.com]
t4 implementation
Per page
Add content type tid 375 [bootstrap - insert code - head] to the section.
Per site
Add content type tid 375 [bootstrap - insert code - head] to the site config section of a particular site. This will apply the same rel-canonical tag across all pages in the site.