Scrape only what you truly need, honor robots guidance and rate limits, and provide attribution when sharing insights. Configure selectors resiliently, then test across multiple sample pages. If a site disallows extraction, step back, ask for an official export, or use browser-native save features instead.
Map captured fields to consistent columns, ensure data types are explicit, and add lightweight validation so broken entries stand out. Push updates into a dedicated sheet tab, never the master view, then review changes before merging. This avoids cascading mistakes while preserving a clean historical trail.