Cookies: The Hidden Tech That Keeps the Internet Running

Do you want to understand what cookies are? 🔻 Click on SHOW MORE 🔻 In this short class, we will take a technical look at browser cookies and try to understand what they really are and why the internet as we know it today cannot work without cookies. We will also go a bit into the privacy concerns around cookies, and I will show you a way to get rid of all these cookie popups without impacting your privacy. ⭐️ Video contents ⭐️ ⌨️ 00:00 - Lesson 1: Introduction ⌨️ 00:24 - Lesson 2: The need for personalization ⌨️ 02:17 - Lesson 3: When were cookies invented? ⌨️ 03:35 - Lesson 4: Why are cookies called "COOKIES"? ⌨️ 04:14 - Lesson 5: How cookies work ⌨️ 06:17 - Lesson 6: Functional cookies ⌨️ 07:30 - Lesson 7: Cookies as a privacy issue ⌨️ 08:51 - Lesson 8: How does a tracking pixel work? ⌨️ 10:08 - Lesson 9: User identification and tracking with cookies ⌨️ 13:04 - Lesson 10: The end of 3rd party cookies ⌨️ 14:47 - Lesson 11: Browser fingerprinting ⌨️ 15:30 - Lesson 12: Getting rid of cookie banners ⌨️ 16:49 - Lesson 13: Conclusion ⭐️ Assignment 1 ⭐️ The purpose of this assignment is to understand how cookies are being handled by your browser. The examples are using Google Chrome. Getting Started - Watch the explanation given in Lesson 6. Tools needed - Google Chrome browser. Step 1: Open the Developer Tools in your browser. Step 2: Open this website: https://cookie-tracking.glitch.me/ (may take a minute to load) Step 3: Inspect the first request being sent. Notice the Set-Cookie header in the HTTP response. Step 4: Reload the page and inspect the second request being sent. Notice the Cookie header in the HTTP request. Step 5: Make two screenshots of your browser Developer Tools showing the Set-Cookie and Cookie header. Step 6: Delete the cookie using the Developer Tools. ⭐️ Assignment 2 ⭐️ The purpose of this assignment is to understand how a tracking pixel works. Getting Started - Watch the explanation given in Lesson 8. Step 1: Open the Developer Tools in your browser. Step 2: Open this website: https://cookie-tracking.glitch.me/ and delete the cookies. Step 3: Open this website: https://new-cookie-times.glitch.me/ Step 4: Go back to the https://cookie-tracking.glitch.me/ and notice how you are being recognized as a returning visitor. Step 5: Inspect the request to the tracking website that is being sent in the background. ⭐️ 📩 Contact & Imprint ⭐️ 👉 Follow me on Twitter: https://twitter.com/vdespa 👉 Follow me on Medium: https://vdespa.medium.com/ 👉 Follow me on Facebook: https://www.facebook.com/Valentin-Despa-113038143438826 👉 Let's connect on LinkedIn: https://www.linkedin.com/in/vdespa/ http://vdespa.com/imprint