Does the discount code for "Realtime Backend System Design with WebSockets" actually work?

Yes! This promo code was verified and tested on May 5, 2026. The 93% discount is applied automatically when you click the coupon button and remains valid until May 31, 2026.

What's the total duration of "Realtime Backend System Design with WebSockets"?

This training contains 11h 30m of video lessons that you can watch on-demand. Once enrolled, you'll have unlimited lifetime access to revisit any section whenever you want.

Are there any prerequisites before enrolling?

Before starting, you should be familiar with: Fundamentals of Backend Engineering. These basics will help you follow along with the lessons more effectively.

Can I add this course completion to my LinkedIn profile?

Absolutely! After finishing all modules, you'll receive an official certificate from Udemy. You can download it as a PDF and upload it directly to LinkedIn, your resume, or portfolio to showcase your new skills.

Realtime Backend System Design with WebSockets — 93% OFF Discount Coupon

Name: Realtime Backend System Design with WebSockets
Price: 11.99 USD
Availability: InStock
Rating: 4.4 (3666 reviews)

Advanced WebSockets internals for Building scalable Real-Time bidirectional gaming and chatting backends

★4.4 out of 5

3,666 students

Created by Hussein Nasser

English

Updated May 2026

Quick Facts — Course Summary

Here's a quick overview of everything you need to know about Realtime Backend System Design with WebSockets before you enroll:

•Course Name: Realtime Backend System Design with WebSockets

•Platform: Udemy

•Instructor: Hussein Nasser

•Coupon Last Verified: May 5, 2026

•Level: Advanced

•Topic: Development

•Subtopic: Back End Web Development

•Total Time: 11h 30m of video content

•Language: English

•Access Type: Unlimited lifetime access + updates

•Certificate: Included upon completion from Udemy

•Main Skills: System Design for Real-Time backend scaling · The Internals of WebSockets · How WebSockets Work

•Requirements: Fundamentals of Backend Engineering

•Current Price: $11.99 (was $169.99). You save $158.00 with 93% discount.

•How to Apply: Click the coupon button to activate your discount automatically

💡

Tip:For best results, apply the coupon in a regular browser window rather than incognito/private mode.

Skills You'll Master

By the end of Realtime Backend System Design with WebSockets, you'll have these practical skills:

✓System Design for Real-Time backend scaling .

✓The Internals of WebSockets .

✓How WebSockets Work .

✓WebSockets on Secure TLS .

✓Scaling WebSockets with Layer 4 Proxying .

✓Scaling WebSockets with Layer 7 Proxying .

✓WebSockets on HTTP/2 and HTTP/3 .

✓Building a Real-time Group Chatting App (IO Intensive) .

✓Building a Real-time Game App (CPU Intensive).

What You Need Before Starting

Before enrolling in Realtime Backend System Design with WebSockets, make sure you have:

•Fundamentals of Backend Engineering

About This Udemy Course

The following is the full official course description for Realtime Backend System Design with WebSockets as published on Udemy by instructor Hussein Nasser:

Engineering efficient and scalable backends is such an enjoyable design activity. Understanding the frontend workflows, designing the APIs, picking the right protocols and databases for the task, and determining the communication patterns—whether the workload is CPU- or I/O-intensive—are all part of the fun.

However, what’s truly more challenging is designing real-time backend applications that support unfettered and ad-hoc bidirectional communication. The workloads of gaming, chatting, and even mission-critical real-time applications are unique in that they require a “push” nature to function effectively.

I spent a few months designing this course, and I chose the WebSockets protocol as the foundation for this work. WebSockets is by far the most widely available bidirectional protocol, supported across all clients—from browsers and command-line apps to runtimes like Node and Bun, and even other languages like C and Go.

While there is the newer WebTransport protocol, it isn’t yet as widely supported or battle-tested as WebSockets. Perhaps I’ll refresh this course in a few years when WebTransport matures.

This course is divided into three main sections:

1. WebSockets Internals – A deep dive into the inner workings of the protocol: the handshake, keepalive mechanisms, frame headers, and how it behaves over TLS. We’ll also discuss limitations—because I believe understanding limitations helps us build better applications. Each lecture will include a coding session and a quiz at the end of the section.

2. Scaling WebSockets – Taking your WebSocket knowledge to the maximum: how to scale this protocol over HTTP/1.1, HTTP/2, and HTTP/3. We’ll cover implementation with proxies in both stream mode (Layer 4) and application mode (Layer 7), along with their pros and cons. Each lecture will include a coding session and a quiz at the end of the section.

3. Building Real-Time System Designs – Putting everything into practice by designing two systems: an I/O-intensive chat system and a CPU-intensive game. I’ll propose multiple designs for each and choose one to implement.

Prerequisite: Fundamentals of Backend Engineering.

I hope you enjoy the course.

Compare Similar Courses

This section allows you to compare the current course with similar options to help you make an informed decision by evaluating prices, ratings, and key features side by side.

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Realtime Backend System Design with WebSockets

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Fundamentals of Backend Engineering

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Compare prices and features to find the best deal for your learning needs

Is the Realtime Backend System Design with WebSockets Coupon Worth It?

Expert review by Andrew Derek, Lead Course Analyst at CoursesWyn.•Last updated: May 5, 2026.

Based on analysis of the curriculum structure, student engagement metrics, and verified rating data, Realtime Backend System Design with WebSockets is a high-value resource for learners seeking to build skills inDevelopment. Taught by Hussein Nasser on Udemy, the 11h 30m course provides a structured progression from foundational concepts to advanced techniques— making it suitable for learners at all levels. The current coupon reduces the price by 93%, from $169.99 to $11.99, removing the primary financial barrier to enrollment.

✓What We Like (Pros)

Verified 93% price reduction makes this course accessible to learners on any budget.
Aggregate student rating of 4.4 out of 5 indicates high learner satisfaction.
Strong enrollment base with over 3,666 students demonstrates course popularity and trust.
Includes an official Udemy completion certificate and lifetime access to all future content updates.

!Keep in Mind (Cons)

The following limitations should be considered before enrolling in Realtime Backend System Design with WebSockets:

The depth of Development coverage may be challenging for absolute beginners without the listed prerequisites.
Lifetime access is contingent on the continued operation of the Udemy platform.
Hands-on projects and quizzes require additional time investment beyond video watch time.

Final Verdict: Worth It

This course offers exceptional value with current pricing

✓

Course Rating Summary

Realtime Backend System Design with WebSockets Course holds an aggregate rating of 4.4 out of 5 based on 3,666 student reviews on Udemy.

4.4

★★★★★

3,666 Verified Ratings

5 stars

75%

4 stars

15%

3 stars

2 stars

1 star

* Rating distribution is approximated from the aggregate score. Sourced from Udemy.

Instructor Profile

The following section provides background information on Hussein Nasser, the instructor responsible for creating and maintaining Realtime Backend System Design with WebSockets on Udemy.

Realtime Backend System Design with WebSockets is taught by Hussein Nasser, a Udemy instructor specializing in Development. For the full instructor biography, professional credentials, and a complete list of their courses, visit the official instructor profile on Udemy.

•Instructor Name: Hussein Nasser

•Subject Area: Development

•Teaching Approach: Practical, project-based instruction focused on real-world application of Development skills.

View Full Instructor Profile on Udemy ↗

Frequently Asked Questions

The following questions and answers cover the most common queries about Realtime Backend System Design with WebSockets, its coupon code, pricing, and enrollment process.

About the Author

Andrew Derek

Lead Course Analyst at CoursesWyn with 8+ years of experience evaluating online learning platforms. I've analyzed 500+ Udemy courses and helped thousands of learners choose the right courses for their career goals.

⭐4.8/5 Rating

✓Trusted by 10K+ Students