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 is content hashing (e.g., main.a3f2b1.js) preferred over version query strings (e.g., main.js?v=2)?

Some CDNs and proxies ignore query strings when caching, serving stale files, Several CDNs and intermediate proxies treat the URL path as the cache key and ignore query parameters. A file cached as main.js with ?v=1 will still be served when ?v=2 is requested. Content hashing puts the version in the filename itself, creating a distinct cache entry.

A content-hashed CSS file (styles.x7f2a.css) is deployed to a CDN with max-age=31536000. When does the browser check if the file has changed?

Never, because the filename changes when the content changes, With content hashing, the URL itself changes when the file changes. The old URL is never requested again, so its cached version never needs revalidation. The new URL triggers a fresh fetch. This is why immutable caching is safe for hashed assets.

What is the purpose of inlining critical CSS in the HTML ?

To render above-the-fold content without waiting for an external stylesheet download, The browser cannot paint until it has both HTML and CSS. Inlining the critical above-the-fold styles in the HTML means the browser can render visible content with just one network request instead of two, eliminating the round trip for an external CSS file.

Static Asset Optimization

Name: System Design Masterclass
Availability: InStock

in Web Content Delivery

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

One-time payment. Lifetime access. No subscription.

Global

$19.99$7.99/lifetime

One-time payment via PayPal

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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

One-time via UPI, cards, or net banking

Get Lifetime Access

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