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.

What is the key difference between standard TLS and mutual TLS?

In mTLS, both the client and server present certificates and verify each other's identity, whereas standard TLS only verifies the server, Standard TLS is one-way: the client verifies the server. mTLS is two-way: both sides present certificates and verify each other. This mutual verification is the foundation of zero-trust architectures.

Why is mTLS foundational to zero-trust networking?

It ensures every connection, internal or external, cryptographically verifies both endpoints, removing reliance on the network perimeter as a trust boundary, Zero trust means 'never trust, always verify.' mTLS ensures that even internal connections between services on the same network must prove identity cryptographically. Being inside the network perimeter is not sufficient to establish trust.

Why does clock skew break mTLS deployments with short-lived certificates?

If a service's clock is ahead or behind, it may reject a valid certificate as expired or not-yet-valid because the validity window is narrow, Short-lived certificates have tight validity windows (hours, not years). A 1-hour cert issued at 10:00 is valid until 11:00. If the verifying service's clock says 11:02 due to drift, it rejects the cert as expired even though the issuing service considers it valid.

Mutual TLS (mTLS)

Name: System Design Masterclass
Availability: InStock

in Security Architecture

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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India

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

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