A technical guide to Web Vitals. Solve LCP, TBT, CLS, and Accessibility issues using automated build-time pipelines and vanilla JS patches.

Your Go structs might be wasting up to 32% of their memory due to invisible padding bytes. This deep dive into struct field alignment reveals how the compiler arranges memory, why field order matters, and provides benchmarks showing real memory savings. Learn the simple reordering rules that can shrink your heap, reduce GC pressure, and improve CPU cache efficiency.

"Why is our service slow?" "I don't know, the heap is only 200MB". "But we're allocating... wait, how much?" "12 terabytes". "...in how long?" "30 seconds profile". That's when we realized: we weren't running a service. We were running a garbage factory that occasionally served API requests. The Go garbage collector was heroically trying to clean up our mess, and we were blaming it for not cleaning fast enough. This deep dive into GC internals, profiling tools, and production war stories will teach you how to stop fighting the garbage collector and start working with it.