Archive - The System Design Newsletter

Forward Proxy vs Reverse Proxy ✨

#77: Break Into Proxy Servers (4 Minutes)

Jul 11 •

How Reddit Works 🔥

#76: Break Into Reddit Architecture for 100M Daily Users (5 Minutes)

Jul 3 •

June 2025

Concurrency Is Not Parallelism 🔥

#75: Break Into Concurrency vs Parallelism (3 Minutes)

Jun 18 •

Everything You Need to Know About Cache Strategies ⭐

#74: A Simple Introduction to Cache Strategies (3 Minutes)

Jun 13 •

May 2025

How API Gateway Actually Work ⭐

#73: Break Into API Gateway (3 Minutes)

May 29 •

System Design Playbook 🔥

Download My Playbook for Free

May 23 •

How Load Balancing Algorithms Really Work ⭐

#72: Break Into Load Balancing Algorithms (3 Minutes)

May 19 •

How JWT Works ✨

#71: Break Into JSON Web Token (3 Minutes)

May 10 •

How DNS Works 🔥

#70: Distributed Hierarchical Database for 5.35B Users (2 Minutes)

May 2 •

April 2025

How Figma Scaled to 4M Users—Without Fancy Databases 🔥

#69: Break Into Postgres Scalability (4 Minutes)

Apr 16 •

March 2025

How Apple Pay Handles 41 Million Transactions a Day Securely 💸

#68: Break Into Apple Pay Architecture (5 Minutes)

Mar 27 •

February 2025

January 2025

December 2024

How Shopify Handled 30TB per Minute With a Modular Monolith Architecture 🔥

#63: Break Into Modular Monolith Architecture (3 Minutes)

Dec 22, 2024 •

How Nginx Was Able to Support 1 Million Concurrent Connections on a Single Server ✨

#62: Break Into Nginx Architecture (4 Minutes)

Dec 4, 2024 •

November 2024

How Databases Keep Passwords Securely 🔒

#61: Break Into Security Fundamentals (3 Minutes)

Nov 18, 2024 •

How Google Ads Was Able to Support 4.77 Billion Users With a SQL Database 🔥

#60: Break Into Google Spanner Architecture (5 Minutes)

Nov 9, 2024 •

October 2024

How Amazon S3 Works ✨

#59: Break Into Amazon Engineering (4 Minutes)

Oct 25, 2024 •

How Facebook Was Able to Support a Billion Users via Software Load Balancer ⚡

#58: Break into Meta Engineering (5 minutes)

Oct 11, 2024 •

September 2024

How Google Search Works 🔥

#57: Break Into Google Search Engine Architecture (6 Minutes)

Sep 30, 2024 •

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