Headers and Cookies

Headers and cookies are crucial for making your scraper behave like a real browser and maintaining state across requests.

Important Request Headers

User-Agent Rotation

The Referer Header

Understanding Cookies

Working with Cookies

Cookie Jars

Saving and Loading Cookies

Browser-Like Headers

Headers for APIs

Debugging Headers and Cookies

Exercise: Complete Headers Setup

Key Takeaways

• User-Agent is the most important header for appearing as a browser
• Rotate User-Agents for large-scale scraping
• Referer makes navigation look natural
• Sessions handle cookies automatically
• Save cookies to persist login state
• Match your headers to what the browser actually sends
• Check DevTools to see what headers real browsers use