How Yandex crawls and indexes a property over time: the HTTP status codes Yandex's crawler received by day, how many pages are in Yandex search, and the count of pages that appeared in or were removed from Yandex results each day. Use the appeared/removed series to spot day-to-day indexing swings in Yandex: it has no Google Search Console equivalent, so it is the one place to watch pages entering and leaving an index day by day. These series carry no country or device dimension and no previous-period comparison; the response repeats that in limitations. When one of the two secondary series could not be read (a Yandex rate limit or timeout), it comes back empty and warnings says so. Returns notConfigured: true (with a reason) when no Yandex account is connected, the connection has to be granted again, the property is not in it, or the caller holds a share of the property rather than owning it: Yandex data is owner-only.