- Source
- Official Data API v3
- Sampling
- Adaptive: largest streams every 60s, mid-tail every 5 min, tail every 15 min
- Caveat
- YouTube has no game category, so new channels are found by searching for the game's name — which means a YouTube stream is discovered largely because its title or description says so. Counts of YouTube channels are sound; statistics about what YouTube titles contain are not, because the search picked them for their wording. The API also allots a fixed daily quota and search is by far its most expensive call, so discovery is rationed. Channels we already track are checked through YouTube's own public channel feeds, which cost no quota, and every viewer count is then confirmed against the official API.