Why does the Yoast Plugin show that your homepage is not indexable even though it is technically indexable or in the Google index already?
This can have several reasons, the most common one is that the homepages URL the plugin analyzes differs from the actual homepage. The plugin will take the WordPress 'permalink' of your homepage, but this must not necessarily be the factual URL of your homepage. For example, even if your server redirects all HTTP requests to HTTPS, your Wordpress settings may still show an HTTP URL as the homepage. This is how you can check if your homepage is indexable:
1. Copy your homepage URL
Make sure to copy the canonical URL of your homepage. You can find it in the "canonical" tag in your source code.
2. Check it right with Ryte
The Single Page Analysis will give you a detailed overview of the URL, including indexability status. You find our Single Paga Analysis under Website Success > Single Page Analysis.