User-Agent Spoofing is the practice of disguising a web scraper's user agent to appear as a different browser or device. A user agent is a string that a browser sends to a web server to identify itself and provide details about the browser, operating system, and device. By spoofing the user agent, web scrapers can avoid detection and access content that might be restricted to certain browsers or devices. This technique helps in bypassing basic anti-scraping measures and ensures that the scraper can retrieve the necessary data. However, user-agent spoofing must be used ethically, adhering to the target website's terms of service.