I learned a lot. I needed this kind of content—basic, yet fundamental.

The explanations are excellent and very helpful for learning about optimization, but I would appreciate it if the course could be updated as it is a bit old. The "Audits" tab in DevTools was integrated into "Lighthouse" a long time ago, and it’s a bit disappointing that it still explains outdated compression methods like Gzip and deflate—which are practically relics—even though Brotli (br) has been out for a while and is superior to Gzip.

"Good"

This is such an old video ㅜ

Fighting!

Good

This was a valuable lecture that helped me get a sense of optimization. However, could you possibly show the code a bit larger next time...? Even in full screen, it appeared small, so it was a bit hard on the eyes to follow along with the code on just one monitor 😭😭 Other than that, I'm completely satisfied. Thank you!!

This is a really great course for organizing the fundamentals~

I understand everything so clearly.. I can grow into a confident senior developer too!! I'll keep pushing forward!!

I really enjoyed it!