It’s 3 AM. Your phone buzzes. “API is down.” You check the logs and see...
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Search across 93 posts, 14 explainers, and 55 topics
How Shopify Powers 5 Million Stores Without Breaking a Sweat
Inside the architecture that handles Black Friday at massive scale
You launch a small t-shirt store on Shopify at 9 AM. By noon, you’ve made...
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WebTransport: The Protocol That Fixes What's Broken in WebSockets
How HTTP/3 and QUIC are changing real-time communication on the web
You’re building a multiplayer game. Players are chatting, shooting, moving around. Your WebSocket connection works...
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What Actually Happens When You Type a URL
From browser to backend server - the complete journey of a DNS request, with performance tricks and production insights
You type google.com into your browser. Half a second later, Google’s homepage appears. Between those...
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AWS US-East-1 Outage: How a Network Load Balancer Bug Took Down Half the Internet
A 12-hour disruption in AWS's largest region affected Netflix, Snapchat, Robinhood, and millions of users worldwide - here's what went wrong and what developers can learn
On October 20, 2025, Amazon Web Services experienced one of its most significant outages in...
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Postgres 18: The Release That Makes Databases Fast Again
Async I/O that's 3x faster, skip scans that actually work, and OAuth built-in - here's what this release means for your production systems
Last month, Postgres shipped version 18, and it’s packed with features that actually matter. While...
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Java 25 is Finally Here: The LTS Release That Changes Everything
Simplified syntax, faster performance, and memory savings - here's what 3 years of Java evolution brings to your codebase
September 2025. After three years of waiting, Java finally released its next Long-Term Support (LTS)...
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How Ticket Booking Systems Handle 50,000 People Fighting for One Seat
Inside the architecture that powers BookMyShow, Ticketmaster, and what happened during the Taylor Swift meltdown
November 2022, 14 million Taylor Swift fans logged into Ticketmaster at the exact same time....
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Hash Collisions: The Hidden Performance Killer in Your Code
Why your O(1) lookup just became O(n), and what you can do about it
December 28th, 2011. Web servers across the internet started crashing. PHP, Java, Python, Ruby applications...
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Why JWT Replaced Sessions: Building Auth That Scales
How stateless tokens solved the scaling problem that broke every session-based system
Your app just hit production. 10,000 users are logged in. Your server stores session data...
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How Kafka Works: The Engine Behind Real-Time Data Pipelines
Inside LinkedIn's log that changed how we think about messaging systems
Your company just launched a new feature. Within seconds, millions of events start flooding in:...
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Kubernetes Architecture: The Operating System for the Cloud
How Google's container orchestrator became the backbone of modern software deployment
Six months ago, you had one web app on one server. Today, you have 50...
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How Meta Achieves 99.99999999% Cache Consistency
Inside the architecture that keeps 3 billion users in sync
When you like a friend’s photo on Facebook, that like appears instantly across all their...
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