Google Apps Script

Google-Apps-Script is the default user agent sent when a script on Google's Apps Script platform calls UrlFetchApp to retrieve a URL. The requests are executed by Google infrastructure on behalf of arbitrary third-party script authors, so this token represents many unrelated automations rather than one operator's crawler, and the id value in the user agent identifies the calling script rather than a purpose. Google publishes a general list of Google-owned IP ranges that these requests originate from, and its verification documentation directs publishers to match Apps Script requests against that IP list rather than by reverse DNS. There is no reverse DNS hostname on a zone dedicated to this fetcher, and the intent behind any individual request cannot be determined from the user agent alone.