Hi, I am using Ultimate 1.3.18 on Joomla 5.

On some pages of the website buildingworks.co.nz there is a canonical tag in the header, but in other pages there is none.

For example:
- buildingworks.co.nz   has canonical correctly set  
- buildingworks.co.nz/contact-us has canonical correctly set
-  buildingworks.co.nz/residential/renovations-extensions DOES NOT HAVE ANY CANONICAL
-  buildingworks.co.nz/residential/bathrooms-kitchens   DOES NOT HAVE ANY CANONICAL
-  buildingworks.co.nz/landscape-building   DOES NOT HAVE ANY CANONICAL

Why do some pages have canonical set, but others do not?

Thanks
Nicola

Please read how to set canonical tags in Joomla. This is not a topic for our support. 

www.danielmorell.com/tools/joomla/custom...dding-canonical-tags

Thank you for your reply, however I disagree.

Joomla 5 has core functionality for canonical, you can set via Plugin "System - SEF" where you set base URL.

Using your template, this works for the Home page, but not for inside pages which use Articles.

Using templates by another provider (Eg Rockettheme) all pages (including article pages) have correct canonical URL with ONLY using "System - SEF" plugin.

Your template should work for pages which use articles as the content, inserting correct canoncial URL.

Regards
Nicola

There are considerations about this, which you can read about here:
github.com/templaza/astroid-framework/issues/438  

We cannot tell you more at the moment, as this is about possible further developments.

SEO specialists clearly state that the canonical tag should only be in the head of the landing page. 
Astroid Framework adheres to this requirement. 
Sorry, but if you do not agree with this, you will have to look for a suitable plugin that meets your requirements.

In my experience, canonical is required on every page for SEO reasons.

I have implemented Custom Canonical CK Pro  www.joomlack.fr/en/download-joomla-exten...egory&category_id=76 which will automatically handle canonical tag for all pages automatically, and is compatible with Joomla5.

Regards
Nicola

Unfortunately, you are wrong and you should look into it again. 

I would like to end the topic here, as we have said everything. 
Ultimately, it is your decision and we cannot judge what the extension you mentioned can do or might change. 

The topic will then be closed.