Cited URL cached content

Unavailable page content keeps the cited URL and citation metrics. Page metadata/content and unknown brand_mentioned/competitor_mentioned return null. content_gap_status is content_unavailable (or missing_page_cache) without usable content, and mentions_not_processed when the page has usable content but its mention analysis has not completed for this project. Mention fields (brand_mentioned, competitor_mentioned, brand_position, brands, mentions, content_gap_status) describe the analysis for the requesting project: a page not yet analyzed for it returns null (never false) brand_mentioned, competitor_mentioned and brand_position, empty brands and mentions arrays and page_cache.mentions_processed false. page_cache.mentions_processed is true exactly when brand_mentioned is not null. An analyzed page keeps its last result until a newer analysis replaces it. status_code shows a saved successful response or observed 404/410; other crawl failures and error_message are hidden. last_crawled_at dates the saved copy. Domain/host crawled_urls_count counts usable copies; brand_mentioned_urls_count and competitor_mentioned_urls_count count only URLs analyzed for the project and are null when none is.