Nadia Makarevich

Web Performance Fundamentals A Frontend Developer’s Guide to Profile and Optimize React Web Apps

📕 Web Performance Fundamentals - measuring and improving Core Web Vitals, diving deep into React rendering techniques and understanding what Suspense and Server Components actually are doing.

www.getwebperf.com

Advanced React - Book and Video Course Advanced React concepts, strategies, techniques, deep dive investigations, that will take your React knowledge to the next level.

📘 Advanced React — deep dives into how React actually works, from state updates to the pain of re-renders to reconciliation shenanigans.

www.advanced-react.com

I'm running 30% off both my books for those who still read real books! 💸

Interested in learning the fundamentals of React and Web performance? Don't miss out!

Real humans writing real books is a rarity these days 😅

🧵👇🏼

Debugging with AI: Can It Replace an Experienced Developer? Can AI actually debug complex React/Next.js issues? I tested it on three real bugs, investigated the root cause myself and wrote down the results.

Can AI replace an experienced developer at debugging?

To find out, I built an app with three real bugs, threw them at LLM, and then investigated the root cause myself 😅

#react #nextjs #frontend

www.developerway.com/posts/debugg...

The article includes:

- What Server Actions actually are under the hood.
- Common arguments for and against using them for fetching.
- A performance experiment on a semi-real use case.
- A definitive answer (not "it depends", I promise).

Can You Fetch Data with React Server Actions? Can React Server Actions replace fetch for client-side data fetching? Let's investigate and find out.

Up for some reading after a well-spent winter break?

New article coming in! #react Server Actions for client-side data fetching - yay or nay? Have you tried that? If you haven't, I tried it for you and wrote down the result 💪🏼

www.developerway.com/posts/server...

Web Performance Fundamentals A Frontend Developer’s Guide to Profile and Optimize React Web Apps

👉🏼 And by the way, the article is extracted from my latest book, "Web Performance Fundamentals".

So if you enjoy the article, you might want to check out the full book too. 😉

And it's still on sale for a few more days! 💸

www.getwebperf.com

Bundle Size Investigation: A Step-by-Step Guide to Shrinking Your JavaScript A practical guide to analyzing and reducing JavaScript bundle size. Learn bundle analysis, fix tree-shaking issues, remove duplicate libraries, and otherwise optimize your React app's JavaScript size.

Who's ready for another investigative deep dive? 🕵🏻‍♀️

If you've ever been frustrated by how much JavaScript your React app ships, here's a step-by-step guide on investigating and fixing it 💪🏼

As usual, easy to read and lots of hands-on examples.

www.developerway.com/posts/bundle...

Happy reading! ☺️

Does up to 50% discount on both of my books count as compelling? ☺️ 30% pre-applied and 20% via parity discount if there is a need.

Web Performance Fundamentals A Frontend Developer’s Guide to Profile and Optimize React Web Apps

Dig deep into the web performance for React devs with Web Performance Fundamentals book

www.getwebperf.com

Advanced React - Book and Video Course Advanced React concepts, strategies, techniques, deep dive investigations, that will take your React knowledge to the next level.

Level Up your React skills with the Advanced React book www.advanced-react.com

Launching a 30% discount on my books "Advanced React" & "Web Performance Fundamentals" starting now!

Perfect time to level up your React & Web Perf skills 💪🏼

There is also a secret code to turn it into 50% if there is a need 😉 Look for it in the FAQ section of the websites 👇🏼

Developer Way Advanced React concepts, strategies, techniques, deep dive investigations, that will take your React knowledge to the next level.

I write and talk about React and Web Performance :) www.developerway.com

React Server Components: Do They Really Improve Performance? A data-driven comparison of CSR, SSR, and RSC under the same app and test setup, focusing on initial-load performance and the impact of client- vs server-side data fetching (including Streaming + Susp...

React Server Components: do they improve performance or make it worse?

If your answer is “I’ve no idea 😅,” I wrote a deep-dive to answer that! Experiments and real numbers, CSR vs SSR vs RSC, same app + test setup.

Focus: initial load + data fetching.

www.developerway.com/posts/react-...

React State Management in 2025: What You Actually Need Learn how to manage state in modern React apps, what is remote, URL, local, and shared state, and when you actually need a state management library.

Another much-requested article for you! If you're confused on which state management solution you should use (Redux, Zustand, Context, etc.,) I've got you covered 😉

If you have a different opinion on the topic, please share! Would love to compare notes ☺️

www.developerway.com/posts/react-...

performance.now(); 30th and 31st of October, Amsterdam On 30th and 31st of October, 2025, the sixth edition of performance.now() will take place in Amsterdam—a single track conference, covering today’s most important web performance insights.

performance.now() is coming!

@adevnadia.bsky.social will provide a deep dive into the new React Server Components. How does the app render in the browser? What are their performance implications? How do they compare to traditional SSR and CSR techniques?

perfnow.nl/speakers.htm...

I tried really hard to deliver pretty advanced content in such a way that it's simple and easy to understand, while trying to avoid talking down to the readers as if they were children. Looks like it worked 😊

To quote a reviewer: "Like a talk with a colleague in simple words and on topic".

Kicked off the "Testimonials" section for the "Web Performance Fundamentals" book (www.getwebperf.com) with very lovely feedback from the early readers.

"Detailed", "on topic", and "simple" are the general themes of the feedback so far :)

Aww, thank you! This effect was the goal, glad it worked! ☺️
Do you mind if I add your feedback to the website, to kick off the "Testimonials" section?

Web Performance Fundamentals A Frontend Developer’s Guide to Profile and Optimize React Web Apps

"Web Performance Fundamentals"

www.getwebperf.com

Advanced React - Book and Video Course Advanced React concepts, strategies, techniques, deep dive investigations, that will take your React knowledge to the next level.

"Advanced React"

www.advanced-react.com

While you're reading, I'm off to write a sequel: what's the difference between Context, Redux, Zustand, and how to choose the best state management these days.

In the meantime, the **WEBPERF30** discount on both of my books still works and will be till the end of the month!

Can We Use Local Storage Instead of Context-Redux-Zustand? Why do we need Context/Redux/Zustand in React, what is the purpose of Local Storage, its limitations, and when to use it.

New long-awaited article coming your way! 📝

Have you ever wondered why we need Context/Redux/Zustand in React, and why we don't use Local Storage instead of them? The article has an answer!

www.developerway.com/posts/local-...

If you go with Amazon, please, please, please leave a review afterwards!

Amazon takes more than 70% of what you pay, so the only reason for authors to publish there is for discoverability.

And every review is a huge boost for that!

Finally! The "Web Performance Fundamentals", my second book, is available on Amazon for all the old-school fans of paper books. 🎉

Grab it here: www.amazon.com/dp/B0FH7L837V
The ebook is here: www.getwebperf.com

Both of them will be invaluable if you want to quickly jump from mid to senior in terms of tech knowledge.

Or completely nail a React tech interview, btw 😉

Web Performance Fundamentals A Frontend Developer’s Guide to Profile and Optimize React Web Apps

"Web Performance Fundamentals" - add even more performance knowledge on top

www.getwebperf.com

Advanced React - Book and Video Course Advanced React concepts, strategies, techniques, deep dive investigations, that will take your React knowledge to the next level.

"Advanced React" - become a React guru on your team

www.advanced-react.com

Quick reminder: my new book is available for purchase, and the 30% launch discount code (**WEBPERF30**) is still valid!

Even better, it's also valid for the first book, in case you'd like a complete set.

Links 🧵👇🏼