Web Scraping Ethics: When to Scrape and When to Stop

Web scraping exists in a gray area. Just because you can scrape a website doesn't mean you should . This guide covers the ethical framework every scraper developer needs. The Ethical Spectrum Not all scraping is equal. Here's a framework for thinking about it: Green Zone (Generally Fine) Public government data (census, weather, legislation) Academic research with proper attribution Personal price comparison tools Monitoring your own brand mentions Sites with explicit permission or open APIs Yellow Zone (Proceed with Caution) Aggregating publicly available business listings Competitive price monitoring at reasonable rates Research that respects robots.txt Red Zone (Don't Do It) Scraping behind authentication you don't own Collecting personal data without consent Overloading small sites with requests Republishing copyrighted content Circumventing explicit technical blocks Checking robots.txt First Always start here: import requests from urllib.robotparser import RobotFileParser def check