When creating internal links you should use the WordPress staging URL of your site
https://example.site.strattic.io/about-us/ or relative links like /about-us/.
This URL will be rewritten to your live or preview URL when you do a Strattic publish.
Here are two examples of how URLs will change after they've been published:
When publishing to preview,
https://example.site.strattic.io/about-us/will get re-written as
https://example.preview.strattic.io/about-us/on the preview site.
When publishing to live, if you haven’t yet connected your custom domain
https://example.site.strattic.io/about-us/would get re-written as
https://example.live.strattic.io/about-us/on the live site. Or, If you have connected your custom domain, it would get re-written as
https://www.yourdomain.com/about-us/on the live site.
If you're using Yoast SEO to analyze internal links in your content, the links must use the WordPress staging URL rather than the live or preview URLs.