Frontend Engineer — Beyond Basics (Vol. 1)

Could you explain, start to finish, what actually happens between a URL and a rendered page?

You've sent thousands of HTTP requests and debugged CORS at midnight — but most engineers can't answer that fully. Not because they're bad at their jobs, but because nobody ever taught this properly.

New to the field? This is the gap that shows up in every interview.

Years of experience? You've picked up pieces of this on the job, but never had it as one connected picture.

Either way, this book closes it — real depth, no hand-holding, paired with interview questions tiered across four levels (Junior, Mid, Senior, Architect) so you're building understanding and interview-readiness at the same time.

Volume 1 covers:

• DNS resolution & caching
• The TCP handshake
• TLS & HTTPS
• HTTP methods, status codes, headers, caching, CORS
• HTTP/1.1 → HTTP/2 → HTTP/3
• The Critical Rendering Path (DOM → CSSOM → paint → composite)

96 pages. 17 chapters. 15 diagrams. 68 interview questions, from your first "what's DNS" round to the architect-level system-design follow-ups.

This is the first of a 5-part series that builds the entire frontend stack — DevTools internals, state architecture, component design, performance at scale.

Start here, and you're not reading one book — you're building the mental model most engineers spend a decade assembling in fragments.