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Developer reveals how to scrape Google Trends despite aggressive rate limiting

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A developer has published a detailed technical breakdown of how Google Trends' internal API works, after rebuilding their scraper three times to handle persistent HTTP 429 rate-limit errors. The process requires a two-step handshake — first calling an explore endpoint to receive one-time tokens, then using those tokens to fetch data from separate widget endpoints for time-series, regional, and related-query data. Google silently restricts anonymous scrapers by tagging sessions as USER_TYPE_SCRAPER, which causes related topics to return empty results and city-level geographic data to return hasData: false — limitations the developer says are server-side gated and cannot be bypassed without a real logged-in cookie. Tokens partially sign requests, meaning certain fields can be modified for finer data granularity, but altering others triggers a 401 error. One exception noted is the Trending Now RSS feed, which requires no token and works anonymously, returning around 10 to 20 trending stories with traffic estimates.

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Developer reveals how to scrape Google Trends despite aggressive rate limiting · ShortSingh