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.

Your SLO is 99.9% availability (43.8 min/month error budget). It's day 10 and you've used 35 minutes. The product team wants to deploy a major new feature. What do you do?

Delay the deployment, with only 8.8 minutes of budget and 20 days remaining, a failed deployment could breach the SLO, With 8.8 minutes remaining and 20 days left in the window, you're in a precarious position. A deployment that causes even a brief outage could breach the SLO. The responsible action is to delay until you understand why you've burned through so much budget, and potentially deploy with extra safeguards (canary, feature flags) when the error budget resets.

You never miss your SLO. In 12 months, your availability SLO of 99.9% has been exceeded every single month, with actual performance around 99.99%. Is this a problem?

Potentially, you might be over-investing in reliability at the expense of feature development, or your SLO is too loose, Consistently exceeding an SLO by a wide margin suggests the SLO is too loose, or you're spending more on reliability than the business requires. Consider tightening the SLO to 99.95% to free up engineering effort for features. A well-calibrated SLO should be missed occasionally, indicating you're pushing the right balance between speed and reliability.

SLA/SLO/SLI Overview

Name: System Design Masterclass
Availability: InStock

in Observability Monitoring

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

Founders price, locked for the first 10,000 customers

India Special

India

₹999₹499/lifetime

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Foundation lessons free, try before you buy

Founders price, locked for the first 10,000 customers

“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