Overview
Canonical URL
Joomla Extension Directory https://extensions.joomla.org/extension/canonical-url/
Developer: CMS Plugin Dev
Product Page: https://www.cmsplugin.com/products/components/4-canonical-url
Price $49/3 months to $129/12months
Last Updated: October 3, 2017 (as of July 2018)
Support URL: https://www.cmsplugin.com/support
This one seems to give you the most control
All in One Canonical Links
Joomla Extension Directory https://extensions.joomla.org/extension/canonical-links-all-in-one/
Developer Manage CMS
Product Page: https://www.managecms.com/extensions/canonical-links
Price: Looks to be 34 Euro and a subscription, but it could be just a one time purchase, since not mention of the subscription length is made.
Last Updated: April 25, 2018 (as of July 2018)
Support URL
Review
This one seems to do system wide canonical updates, not sure if you can manually specify specific URLs
Styleware Plugin
Joomla Extension Directory https://extensions.joomla.org/extension/canonical/
Developer: Styleware
Product Page: https://styleware.eu/store/item/26-styleware-content-canonical-plugin
Price: Free
Last Updated: ???
Support URL ???
Review
I think this one just cleans up the Canonical Issues in Joomla
Aimy Canonical
Joomla Extension Directory https://extensions.joomla.org/extension/aimy-canonical/
Developer: Aimy Extenions
Product Page: https://www.aimy-extensions.com/joomla/canonical.html
Price: Free & Paid Version
Last Updated: ???
Support URL ???
Review
Free and Pro Versions
Not sure if you can manually Specify specific URLs for canonical
Use Joomla Core
There seems to be a way you can use the Joomla Core to accomplish what we need to do. This could be more work and maintenance than it is worth. Just wanted to add it to the list as an option
https://www.danielmorell.com/blog/how-to-create-joomla-canonical-tags
https://www.robertwent.com/blog/using-joomla-custom-fields-add-canonical-urls/
Posts About Canonical URLs
https://joomlaseo.com/blog/joomla-3-and-canonical-url
https://www.danielmorell.com/blog/how-to-create-joomla-canonical-tags
https://www.ostraining.com/blog/joomla/canonical/
Yoast SEO on Canonical URLs https://yoast.com/rel-canonical/
Sure it is wordpress but the information is very helpful
Video from Matt Cutts: http://extensions.cmsplugin.com/extensions/j3demo/canonical-url
