🚀 Casse Study #1 How YouTube Handles 1 Billion Views Every Day - System Design & Capacity Planning

Ever wondered what it actually takes to build infrastructure at YouTube scale? In this video, I break down the complete capacity planning math behind a YouTube-like video platform — from daily uploads and storage growth to CDN architecture, streaming protocols, and real cost estimation. 🔢 What we calculate: ✅ 500,000 daily video uploads → how much storage that really is ✅ Multi-rendition encoding (360p → 4K) and why codec choice saves millions ✅ 1 billion daily views → RPS, bandwidth, and peak traffic spikes ✅ Why CDN is non-negotiable and how the 85% cache hit rate changes everything ✅ HLS vs DASH vs WebRTC — which protocol YouTube actually uses and why ✅ Full annual infrastructure cost breakdown (storage, egress, transcoding) ✅ 3×, 5×, 10× future growth scenario planning 🛠️ Tools used: Interactive capacity planning calculator (built live) Excel capacity planning template (download link below) AI-assisted research on compression, CDN architecture, and streaming protocols 📥 Free Downloads: → Capacity Planning Excel Template: [your link] → GitHub repo: github.com/anulsasidharan This is the exact framework used in system design interviews at Google, Meta, Amazon, and Netflix. Whether you're prepping for a senior engineering interview or architecting a real platform, these back-of-envelope calculations will change how you think about scale. ⏱️ Timestamps: 00:00 — Hook: YouTube by the numbers 01:30 — Section 1: Video uploads & storage math 03:30 — Section 2: Video compression & codecs (H.264, VP9, AV1) 06:00 — Section 3: Why CDN is essential 09:00 — Section 4: Bandwidth calculations 12:00 — Section 5: Streaming protocols (HLS, DASH, ABR) 15:00 — Section 6: Full cost estimation 18:00 — Outro 🔔 Subscribe for weekly AI, ML, and system design content → OrionVexa 📲 Connect: → LinkedIn:   / anulsasidharan   → Website: orionvexa.ca → GitHub: github.com/anulsasidharan #SystemDesign #YoutubeEngineering #CapacityPlanning #SoftwareArchitecture #CloudComputing #SystemDesignInterview #CodingInterview #SeniorEngineer #TechInterview #BackendDevelopment #CDN #VideoStreaming #HLS #DASH #VideoCompression #AV1 #VP9 #AWS #CloudArchitecture #DataEngineering #LearnToCode #ProgrammingTutorial #AIEngineering #MLOps #TechEducation #OrionVexa #Python #DevOps #MachineLearning #100DaysOfCode