Explore the world of online advertising networks and their tracking methods in this 50-minute conference talk from TROOPERS18. Delve into complex website structures, HTTP archives, and location headers while learning about iframes and URL attachments. Discover the ET Toolkit for aggregating URLs and gain insights into HTTP Bloom. Examine the role of cookies in online tracking and participate in a Q&A session to deepen your understanding of how ads networks follow users across the internet.