This is a lecture that organizes all the parts that were blocked and the parts that I was curious about while developing in practice because of HTTP. As mentioned in the lecture, the contents were inaccurate and fragmented when searching online, and the book was too detailed, so it was difficult to organize the contents all at once. After listening to the lecture, I feel like I have a grasp of what the problem is and how to find it when I need to check HTTP in practice. The lecture content was informative and the explanation was good because it was explained using real-life applications + examples. ㅎㅎ I heard a lot of rumors that Kim Young-han's lectures were good, but I couldn't buy them because of the cost. After listening to this lecture, I liked it so much that I bought all the lectures. This is a lecture that you really don't regret spending money on. I highly recommend it!!