List the platforms and how each one is answering

List supported capabilities separately from source health. capabilities reports profile/post lookup, topic video search, indexed topic search, hashtag search and country trend boards. YouTube and TikTok support topic video search; only YouTube has a country board. Only Instagram has indexed topic search, the reels on its public popular page for a word, which exists for some words only. TikTok and Instagram support hashtag search. Google Trends is a separate /trending source. status and strategies describe profile reads; postStatus and postStrategies describe post reads, with verification dates and the last 24 hours of results. A supported capability can still have no working source here. Free.