Single site subscriptions: switching from development server to live server
If you have a subscription for a single site and want to do development on a test server before you move the server to a live environment: you can!
A single site subscription can be connected to only one site at a time. However, you can add both your live and staging site in My Yoast and connect/disconnect to switch between the live and development site.
An active subscription connection to your site is required to check for updates so we recommend connecting the subscription to the WordPress installation you use to test version updates.
If you decide that you need to connect multiple WordPress installations or multiple domains, please purchase additional subscriptions.
Will Switching Subscriptions Affect the SEO?
No, switching subscriptions is not expected to affect the SEO of the site which no longer has it. However, an active subscription is required to get updates and use the WordForms feature.
Sites without an active subscription are unable to get plugin updates and will see a Yellow Banner on posts/pages alerting you to the fact you do not have WordForms.