A page can look ready in every way — content, meta tags, internal links — and still fail to make it into the Yandex index, or quietly drop out of it later. Without a regular check, these gaps usually surface only once a traffic dip on that page or section is already visible.
How the site indexation check works
Given a domain — and optionally a list of specific important URLs — the skill checks the overall size of the site's index, then verifies whether the given pages, or the site's key sections and homepage by default, are actually present in it.
What you get
A report with an overall indexation estimate, a table of checked pages marked in or out of the index, and for each dropped page, a likely cause (too new, blocked, a duplicate, or weak content) with a recommended fix. It closes with a verdict on whether the site has a systemic indexation problem or just isolated gaps. Run it on a regular cadence, right after publishing new pages or sections, or whenever a whole section seems to be underperforming in search.