Readiness runs ahead of the spend, not after it.
Almost every tool in this category is retrospective: it tells you what happened. By then the media has run, the article is live and the page has been indexed the way it was.
Here a campaign page is checked for the promise the campaign makes before media goes behind it. A draft is judged against the query it’s aimed at before it’s published. A page is assessed for whether an answer engine could use it before you ask why it doesn’t.