Checks, ads and advertisers by local day, week or month

Returns one row per local day, week (starting Monday) or month with saved monitoring checks, in the person's time zone or time_zone: checks_saved, ads_observed (ad occurrences) and advertiser_domains (distinct domains in that period). A period without saved checks is absent: nothing was measured, which is not the same as zero ads. Pass advertiser to add that domain's visibility per period = checks where it showed at least one ad / checks_saved; it is not impression share. Compare like-for-like windows and filters, and check changes in checks_saved before attributing a change in observed presence to the market. Imported studies are not included, as on the Overview chart. The default granularity matches the Overview chart: days, or months for windows longer than 62 days.