Nadia Makarevich

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 🧵👇🏼

unfortunately i don't have one 😔 but next time you can try pinging me directly, i love investigating stubborn problems :)

haha ❤️ ☺️

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

For fans of discounts, there is a secret code **WEBPERF30** that gives a 30% discount on the purchase.

Valid for a month, until July 23, 2025.

Also works for Advanced React, if you want a full book set 😉

www.advanced-react.com

It's happening! The "Web Performance Fundamentals" is live, grab it here: getwebperf.com

Made with love for #react developers 😅

#javascript #frontend #performance

Final version of the cover!

Also, finally deployed the website with the JoinWaitlist button: www.getwebperf.com.

Subscribe not to miss the official announcement and the launch discount code 😉

Expect the email next Monday!

#react #frontend #javascript

It's absolutely not for beginners, though; prior experience is pretty much mandatory.

Core target audience: middle to senior React developers who want to deepen their knowledge and tap into web performance.

Secondary target audience: any frontend developer interested in web performance who doesn't mind dealing with React on occasion.

Nevertheless, all examples are written in React, some of the aspects are deeply intertwined with React's specifics (like SSR), and some of them are purely React specifics, like React Server Components.

So, keeping "React" somewhere in the subtitle seems fair.

The rationale👇🏼

The book is all about _web performance_: how to investigate, measure, and understand it.

70% of the book has nothing to do with React itself: it's about fundamental web knowledge applicable to any web app, SPA or not. So I'd like to avoid "React" in the title.

This is happening and pretty soon! The new book is coming, final polish in progress.

In the meantime, which title do you like best?

"Beyond Re-renders
Web Performance Fundamentals for React Developers"

"Web Performance Fundamentals
Profile & Optimize React Web Apps"

🧵👇🏼

The article includes:

* Why Tailwind vs Linaria comparison, and what makes them different.
* How are those differences reflected in the size of the assets and initial load/interactions.
* The definitive answer on what to choose for your next project - Tailwind or Linaria 😅

Tailwind vs Linaria: Performance Investigation Investigating performance of Tailwind vs Linaria frameworks, with a focus on initial load and interaction performance.

New #react #performance investigation, anyone? This time, trying to answer a very existential question 🙈

What is better from the performance perspective: Tailwind or Linaria? 🤔

www.developerway.com/posts/tailwi...

SSR Deep Dive for React Developers Explore step-by-step how Server-Side Rendering (SSR), pre-rendering, hydration, and Static Site Generation (SSG) work in React, their costs, performance impact, benefits, and trade-offs.

It’s yet again not even an article, but a mini-course with homework in text format 😬 😅

Grab it here:

www.developerway.com/posts/ssr-de...

* And finally, what is Static Site Generation (SSG) and why we’d want to do that.

On top of that, you’ll have a Study project you’ll be able to download and play around with every aspect described in the article by turning on and off certain code blocks.