Is this a video course?

No. This is an interactive, slide-based learning platform. Each lesson has rich text, animated diagrams, live code editors, and quizzes. You learn by reading, interacting, and doing, not by watching videos passively.

How long do I have access?

Forever. Both pricing tiers are one-time payments with lifetime access. This includes all current 766 lessons and any future content we add.

What level of experience do I need?

None. We start from absolute basics like 'What is latency?' and build up to distributed consensus protocols. The Foundation level assumes zero prior knowledge of system design.

How much does the system design course cost?

7.99 US dollars for lifetime access globally, or 499 Indian rupees for lifetime access in India. One-time payment, no subscription, no hidden fees. 11 lessons are free with no signup required.

What technologies are covered?

Everything from DNS and load balancers to Kubernetes, Kafka, distributed databases, consensus protocols, stream processing, security architecture, and observability. We cover principles and real-world implementations used at Netflix, Google, Amazon, Uber, Stripe, and more.

Is this useful for system design interview preparation?

Yes. The lessons are structured around the exact topics asked in system design interviews at FAANG and top-tier companies. Interactive diagrams help you practice whiteboard-style explanations. Covers everything from URL shortener design to distributed payment systems.

How is this different from ByteByteGo or Educative?

766 interactive lessons (4x more than most competitors), 16 different diagram types that build step by step, real production examples from Netflix, Google, Amazon, Uber, and Stripe, and lifetime access for a one-time payment of $7.99 instead of annual subscriptions costing 100 to 200 dollars per year.

Why must A/B test assignment be deterministic (hash-based)?

So the same user always sees the same variant across visits, without a database lookup, If a user sees variant A on Monday and variant B on Tuesday, their behavior is contaminated and the data is unreliable. Hash-based assignment is deterministic (same input always gives same output) and stateless (no database needed).

What is the difference between canary deployment and A/B testing?

Canary validates safety (error rates, latency), A/B testing measures business outcomes (conversion, revenue), Canary asks 'is it safe to deploy?' by watching error rates and latency. A/B testing asks 'is it better?' by measuring business metrics with statistical rigor. They are different tools for different questions.

Why is 'peeking' at A/B test results and stopping early problematic?

It inflates the false positive rate, making you think a change is significant when it is not, Statistical significance assumes you check results once, at the predetermined sample size. Checking daily and stopping when you see a 'winner' is multiple hypothesis testing, which inflates your false positive rate from 5% to 20-30%.

A/B Testing Infrastructure

Name: System Design Masterclass
Availability: InStock

in Devops Cicd

This lesson is part of the full System Design Masterclass. Unlock it along with 765 other lessons for a one-time payment.

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$19.99$7.99/lifetime

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Foundation lessons free, try before you buy

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India

₹999₹499/lifetime

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Foundation lessons free, try before you buy

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“The interactive diagrams alone are worth way more than the price.”

Anish K., Senior Engineer at a Bengaluru startup

All 766 interactive lessons

Step-by-step animated diagrams

Live code editors with real execution

Quizzes with instant feedback

Completion certificates per level

Lifetime access, all future content included

The first 5 Foundation lessons are free, no payment needed. Try them now