Apparently it was caused by indexable not being updated after the installation of a plugin and I had to reset indexables with Yoast Test Helper plugin.
This is a lil worrying.
Hi @drlightman
Thanks for using Yoast SEO plugin.
We understand that the canonical URL is not outputting correctly within the page’s source code. We have seen unexpected issues where the previously optimized data is invalid or incomplete or when the SEO Data Optimization performed within the staging site didn’t get cleared. In these cases, resetting the SEO Data optimization helps to ensure we’ve removed any invalid data. If you are still facing the issue after resetting the indexable, let’s cover a few important things to be aware of beforehand.
First, we would understand if you were hesitant to reset the optimized data. We can assure you that your hard work will not be lost as the default WordPress tables also contain the SEO data. This process will only reset the custom Yoast tables with the combined data pulled from those default tables.
Second, we recommend creating regular backups of your site and database for your site’s health and safety. Backups are especially important before making substantial changes to your website. It provides you with a safety net if something were to go wrong. Learn more about the benefits of regular backups.
Thirdly, we highly recommend using a staging or testing site to reduce the impact on your live site. Some popular web hosts offer quick setups for a staging site, so please contact your web host for assistance. They will probably be able to help you out. If your web host does not offer staging sites, the WordPress plugin repository offers staging plugins, or you can create your own staging site.
Now, back to the issue at hand. We know that resetting the data may sound intimidating, but our How to reset the Yoast indexables guide will walk you through the process step by step. We’ve also summarized the steps below.
- Install & activate the Yoast Test Helper plugin
- Go to Tools > Yoast Test
- Locate the Yoast SEO section and click on the ‘Reset indexables tables & migrations‘, ‘Reset Prominent words calculation‘, and ‘Reset Internal link counter‘ buttons. After each click, the page will reload to confirm that the specific reset was successful.
- Go to SEO > Tools, and under SEO data, click the “Start SEO data optimization” button to allow Yoast to rescan your content.
We hope this helps.
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