---
title: Content Delivery Network Blog  | Infrastructure (2)
description: Infrastructure | CDN Blog | About Content Delivery Network  (2)
image: https://blog.blazingcdn.com/hubfs/logo%20560-560-1.png
---

[![BlazingCDN](https://blog.blazingcdn.com/hubfs/Logo/blog-logo-w.png)](https://blog.blazingcdn.com?hsLang=en-us)

[📘 Learn ▾](https://blog.blazingcdn.com/cdn-learn?hsLang=en-us)

[CDN Fundamentals](https://blog.blazingcdn.com/cdn-fundamentals?hsLang=en-us) [By Content Type](https://blog.blazingcdn.com/by-content-type?hsLang=en-us) [Advanced Concepts](https://blog.blazingcdn.com/advanced-concepts?hsLang=en-us) [📖 Glossary](https://blog.blazingcdn.com/glossary?hsLang=en-us)

[🎬 Video & Streaming ▾](https://blog.blazingcdn.com/video-streaming-cdn?hsLang=en-us)

[🔴 Live Streaming](https://blog.blazingcdn.com/live-streaming?hsLang=en-us) [📺 VOD & OTT](https://blog.blazingcdn.com/vod-ott?hsLang=en-us) [🎞️ Encoding & Players](https://blog.blazingcdn.com/encoding-players?hsLang=en-us) [🎧 Audio & Podcasts](https://blog.blazingcdn.com/audio-podcasts?hsLang=en-us) [💰 Bandwidth & Costs](https://blog.blazingcdn.com/bandwidth-costs?hsLang=en-us)

[🏗️ Infrastructure ▾](https://blog.blazingcdn.com/cdn-infrastructure?hsLang=en-us)

[🗄️ Storage & Origin](https://blog.blazingcdn.com/storage-origin?hsLang=en-us) [📦 Large File Delivery](https://blog.blazingcdn.com/large-file-delivery?hsLang=en-us) [💸 Cloud Costs & Egress](https://blog.blazingcdn.com/cloud-costs-egress?hsLang=en-us) [🌐 Networking & ISP](https://blog.blazingcdn.com/networking-isp?hsLang=en-us) [⚙️ DevOps & Cloud Infra](https://blog.blazingcdn.com/devops-cloud-infra?hsLang=en-us) [⚡ Web Performance](https://blog.blazingcdn.com/web-performance?hsLang=en-us)

[🏭 Industries ▾](https://blog.blazingcdn.com/cdn-industry-insights?hsLang=en-us)

[📺 Media & Broadcasting](https://blog.blazingcdn.com/media-broadcasting?hsLang=en-us) [💾 Software & SaaS](https://blog.blazingcdn.com/software-saas?hsLang=en-us) [📣 AdTech & Advertising](https://blog.blazingcdn.com/adtech-advertising?hsLang=en-us) [🎮 Gaming & Esports](https://blog.blazingcdn.com/gaming-esports?hsLang=en-us) [📱 Mobile Apps & Developers](https://blog.blazingcdn.com/mobile-apps-developers?hsLang=en-us) [🤖 AI & Machine Learning](https://blog.blazingcdn.com/ai-machine-learning?hsLang=en-us) [🏛️ Enterprise & Corporate](https://blog.blazingcdn.com/enterprise-corporate?hsLang=en-us) [📚 E-Learning & EdTech](https://blog.blazingcdn.com/e-learning-edtech?hsLang=en-us) [🏟️ Sports & Live Events](https://blog.blazingcdn.com/sports-live-events?hsLang=en-us)

[💰 Pricing & Compare ▾](https://blog.blazingcdn.com/cdn-pricing-and-cdn-costs?hsLang=en-us)

[Provider Pricing](https://blog.blazingcdn.com/provider-pricing?hsLang=en-us) [Cost Optimization](https://blog.blazingcdn.com/cost-optimization?hsLang=en-us) [Decision Support](https://blog.blazingcdn.com/decision-support?hsLang=en-us) [⚡ Compare](https://blog.blazingcdn.com/cdn-comparison?hsLang=en-us) [Provider Comparisons](https://blog.blazingcdn.com/provider-comparisons?hsLang=en-us) [Strategy Comparisons](https://blog.blazingcdn.com/strategy-comparisons?hsLang=en-us) [📊 Benchmarks](https://blog.blazingcdn.com/cdn-ratings-and-benchmarks?hsLang=en-us)

[🔒 Security ▾](https://blog.blazingcdn.com/cdn-security?hsLang=en-us)

[Attack Protection](https://blog.blazingcdn.com/attack-protection?hsLang=en-us) [Encryption & Access](https://blog.blazingcdn.com/encryption-access?hsLang=en-us) [Video & DRM Security](https://blog.blazingcdn.com/video-drm-security?hsLang=en-us)

[🛠️ Tools](https://blog.blazingcdn.com/cdn-tools?hsLang=en-us)

[Get Started](https://blazingcdn.com/sign-up-contact-form/)

# Content Delivery Network Blog | Infrastructure (2) | About Content Delivery Network

Infrastructure | CDN Blog | About Content Delivery Network (2)

[All](https://blog.blazingcdn.com/en-us) [Infrastructure](https://blog.blazingcdn.com/en-us/tag/infrastructure) [Video - Video & Streaming](https://blog.blazingcdn.com/en-us/tag/video-video-streaming) [Industries](https://blog.blazingcdn.com/en-us/tag/industries) [Learn](https://blog.blazingcdn.com/en-us/tag/learn) [Compare](https://blog.blazingcdn.com/en-us/tag/compare) [Pricing - Pricing & Costs](https://blog.blazingcdn.com/en-us/tag/pricing-pricing-costs) [Compare - Provider Comparisons](https://blog.blazingcdn.com/en-us/tag/compare-provider-comparisons) [DevOps & Cloud Infra](https://blog.blazingcdn.com/en-us/tag/devops-cloud-infra) [Pricing - Provider Pricing](https://blog.blazingcdn.com/en-us/tag/pricing-provider-pricing) [Learn - Advanced Concepts](https://blog.blazingcdn.com/en-us/tag/learn-advanced-concepts) [Video - Live Streaming](https://blog.blazingcdn.com/en-us/tag/video-live-streaming) [Web Performance](https://blog.blazingcdn.com/en-us/tag/web-performance) [Video - VOD & OTT](https://blog.blazingcdn.com/en-us/tag/video-vod-ott) [Security](https://blog.blazingcdn.com/en-us/tag/security) [Media & Broadcasting](https://blog.blazingcdn.com/en-us/tag/media-broadcasting) [Video - Encoding & Players](https://blog.blazingcdn.com/en-us/tag/video-encoding-players) [Infrastructure - Networking & ISP](https://blog.blazingcdn.com/en-us/tag/infrastructure-networking-isp) [Enterprise & Corporate](https://blog.blazingcdn.com/en-us/tag/enterprise-corporate) [Pricing - Decision Support](https://blog.blazingcdn.com/en-us/tag/pricing-decision-support) [AI & Machine Learning](https://blog.blazingcdn.com/en-us/tag/ai-machine-learning) [Learn - CDN Fundamentals](https://blog.blazingcdn.com/en-us/tag/learn-cdn-fundamentals) [Pricing - Cost Optimization](https://blog.blazingcdn.com/en-us/tag/pricing-cost-optimization) [Security - Encryption & Access](https://blog.blazingcdn.com/en-us/tag/security-encryption-access) [Learn - By Content Type](https://blog.blazingcdn.com/en-us/tag/learn-by-content-type) [Benchmarks](https://blog.blazingcdn.com/en-us/tag/benchmarks) [Software & SaaS](https://blog.blazingcdn.com/en-us/tag/software-saas) [Infrastructure - Storage & Origin](https://blog.blazingcdn.com/en-us/tag/infrastructure-storage-origin) [Gaming & Esports](https://blog.blazingcdn.com/en-us/tag/gaming-esports) [Infrastructure - Large File Delivery](https://blog.blazingcdn.com/en-us/tag/infrastructure-large-file-delivery) [Compare - Strategy Comparisons](https://blog.blazingcdn.com/en-us/tag/compare-strategy-comparisons) [Learn - Glossary](https://blog.blazingcdn.com/en-us/tag/learn-glossary) [Tools](https://blog.blazingcdn.com/en-us/tag/tools) [E-Learning & EdTech](https://blog.blazingcdn.com/en-us/tag/e-learning-edtech) [Video - Bandwidth & Costs](https://blog.blazingcdn.com/en-us/tag/video-bandwidth-costs) [Mobile Apps & Developers](https://blog.blazingcdn.com/en-us/tag/mobile-apps-developers) [Security - Attack Protection](https://blog.blazingcdn.com/en-us/tag/security-attack-protection) [Security - Video & DRM Security](https://blog.blazingcdn.com/en-us/tag/security-video-drm-security) [AdTech & Advertising](https://blog.blazingcdn.com/en-us/tag/adtech-advertising) [Video - Audio & Podcasts](https://blog.blazingcdn.com/en-us/tag/video-audio-podcasts) [Infrastructure - Cloud Costs & Egress](https://blog.blazingcdn.com/en-us/tag/infrastructure-cloud-costs-egress) [Sports & Live Events](https://blog.blazingcdn.com/en-us/tag/sports-live-events)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-03-2026-05-15-39-4044-PM.jpeg)](https://blog.blazingcdn.com/en-us/egress-vs-ingress-network-traffic-and-cloud-costs)

[Infrastructure](https://blog.blazingcdn.com/en-us/tag/infrastructure)

## [Egress vs Ingress: Network Traffic and Cloud Costs](https://blog.blazingcdn.com/en-us/egress-vs-ingress-network-traffic-and-cloud-costs)

 Egress vs ingress comes down to direction and who pays. Ingress is traffic entering a network or cloud account, and ...

 Vadym Borovskyi ·  Nov 3, 2026, 6:18:43 PM 

[Read more](https://blog.blazingcdn.com/en-us/egress-vs-ingress-network-traffic-and-cloud-costs)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-03-2026-03-10-41-7740-PM.jpeg)](https://blog.blazingcdn.com/en-us/what-is-bgp-border-gateway-protocol-explained)

[Infrastructure](https://blog.blazingcdn.com/en-us/tag/infrastructure)

## [What Is BGP? Border Gateway Protocol Explained](https://blog.blazingcdn.com/en-us/what-is-bgp-border-gateway-protocol-explained)

 BGP (Border Gateway Protocol) is the routing protocol that connects the internet's independent networks, called ...

 Vadym Borovskyi ·  Nov 3, 2026, 4:12:27 PM 

[Read more](https://blog.blazingcdn.com/en-us/what-is-bgp-border-gateway-protocol-explained)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-03-2026-08-55-36-5956-AM.jpeg)](https://blog.blazingcdn.com/en-us/zstandard-compression-for-the-web-zstd-vs-brotli-vs-gzip)

[Web Performance](https://blog.blazingcdn.com/en-us/tag/web-performance)

## [Zstandard Compression for the Web: zstd vs Brotli vs Gzip](https://blog.blazingcdn.com/en-us/zstandard-compression-for-the-web-zstd-vs-brotli-vs-gzip)

 Verdict, evaluated November 2026: serve Brotli at quality 11 for static text you can precompress, use zstd compression ...

 Vadym Borovskyi ·  Nov 3, 2026, 9:57:58 AM 

[Read more](https://blog.blazingcdn.com/en-us/zstandard-compression-for-the-web-zstd-vs-brotli-vs-gzip)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-03-2026-06-50-39-1739-AM.jpeg)](https://blog.blazingcdn.com/en-us/http-keep-alive-persistent-connections-explained)

[Infrastructure](https://blog.blazingcdn.com/en-us/tag/infrastructure)

## [HTTP Keep-Alive: Persistent Connections Explained](https://blog.blazingcdn.com/en-us/http-keep-alive-persistent-connections-explained)

 HTTP keep alive lets one TCP (and TLS) connection carry many requests instead of one, so every reused request skips the ...

 Vadym Borovskyi ·  Nov 3, 2026, 7:52:50 AM 

[Read more](https://blog.blazingcdn.com/en-us/http-keep-alive-persistent-connections-explained)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-03-2026-04-45-37-9940-AM.jpeg)](https://blog.blazingcdn.com/en-us/osi-model-explained-7-layers-with-real-examples)

[Infrastructure](https://blog.blazingcdn.com/en-us/tag/infrastructure)

## [The OSI Model Explained: 7 Layers With Real Examples](https://blog.blazingcdn.com/en-us/osi-model-explained-7-layers-with-real-examples)

 Every device and proxy in a request path can be classified by one question: what is the deepest header it reads before ...

 Vadym Borovskyi ·  Nov 3, 2026, 5:48:24 AM 

[Read more](https://blog.blazingcdn.com/en-us/osi-model-explained-7-layers-with-real-examples)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-03-2026-02-40-37-0977-AM.jpeg)](https://blog.blazingcdn.com/en-us/the-tcp-ip-model-explained-four-layers-of-the-internet)

[Infrastructure](https://blog.blazingcdn.com/en-us/tag/infrastructure)

## [The TCP/IP Model Explained: Four Layers of the Internet](https://blog.blazingcdn.com/en-us/the-tcp-ip-model-explained-four-layers-of-the-internet)

 The TCP/IP model splits internet communication into four layers: link, internet, transport and application, as defined ...

 Vadym Borovskyi ·  Nov 3, 2026, 3:43:10 AM 

[Read more](https://blog.blazingcdn.com/en-us/the-tcp-ip-model-explained-four-layers-of-the-internet)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-03-2026-12-35-39-5806-AM.jpeg)](https://blog.blazingcdn.com/en-us/tcp-three-way-handshake-explained-syn-syn-ack-ack)

[Infrastructure](https://blog.blazingcdn.com/en-us/tag/infrastructure)

## [TCP Three-Way Handshake Explained: SYN, SYN-ACK, ACK](https://blog.blazingcdn.com/en-us/tcp-three-way-handshake-explained-syn-syn-ack-ack)

 The 3 way handshake is the SYN, SYN-ACK, ACK exchange that opens every TCP connection, and it costs one full round trip ...

 Vadym Borovskyi ·  Nov 3, 2026, 1:37:32 AM 

[Read more](https://blog.blazingcdn.com/en-us/tcp-three-way-handshake-explained-syn-syn-ack-ack)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-02-2026-10-30-49-5393-PM.jpeg)](https://blog.blazingcdn.com/en-us/what-is-http-3-quid-based-http-explained)

[Infrastructure](https://blog.blazingcdn.com/en-us/tag/infrastructure)

## [What Is HTTP/3? QUIC-Based HTTP Explained](https://blog.blazingcdn.com/en-us/what-is-http-3-quid-based-http-explained)

 HTTP 3 (HTTP/3, RFC 9114) is the third major version of HTTP. It keeps HTTP semantics (methods, status codes, headers) ...

 Vadym Borovskyi ·  Nov 2, 2026, 11:32:31 PM 

[Read more](https://blog.blazingcdn.com/en-us/what-is-http-3-quid-based-http-explained)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-02-2026-08-25-38-2122-PM.jpeg)](https://blog.blazingcdn.com/en-us/what-is-http-2-multiplexing-and-header-compression)

[Infrastructure](https://blog.blazingcdn.com/en-us/tag/infrastructure)

## [What Is HTTP/2? Multiplexing and Header Compression](https://blog.blazingcdn.com/en-us/what-is-http-2-multiplexing-and-header-compression)

 HTTP/2 is the second major version of HTTP. It keeps HTTP/1.1 semantics (methods, status codes, headers) but replaces ...

 Vadym Borovskyi ·  Nov 2, 2026, 9:27:23 PM 

[Read more](https://blog.blazingcdn.com/en-us/what-is-http-2-multiplexing-and-header-compression)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-02-2026-10-01-57-8244-AM.jpeg)](https://blog.blazingcdn.com/en-us/503-service-unavailable-what-it-means-and-how-to-fix-it)

[DevOps & Cloud Infra](https://blog.blazingcdn.com/en-us/tag/devops-cloud-infra)

## [503 Service Unavailable: What It Means and How to Fix It](https://blog.blazingcdn.com/en-us/503-service-unavailable-what-it-means-and-how-to-fix-it)

 HTTP 503 Service Unavailable means the server, or a proxy in front of it, is temporarily refusing requests because it ...

 Vadym Borovskyi ·  Nov 2, 2026, 11:03:58 AM 

[Read more](https://blog.blazingcdn.com/en-us/503-service-unavailable-what-it-means-and-how-to-fix-it)

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[📘 Learn](https://blog.blazingcdn.com/cdn-learn?hsLang=en-us) [📊 Benchmarks](https://blog.blazingcdn.com/cdn-ratings-and-benchmarks?hsLang=en-us) [🎬 Video & Streaming](https://blog.blazingcdn.com/video-streaming-cdn?hsLang=en-us) [🏭 Industries](https://blog.blazingcdn.com/cdn-industry-insights?hsLang=en-us) [💰 Pricing & Costs](https://blog.blazingcdn.com/cdn-pricing-and-cdn-costs?hsLang=en-us) [⚡ Compare](https://blog.blazingcdn.com/cdn-comparison?hsLang=en-us) [🔒 Security](https://blog.blazingcdn.com/cdn-security?hsLang=en-us) [🛠️ Tools](https://blog.blazingcdn.com/cdn-tools?hsLang=en-us) [✍️ Publish with us](https://blog.blazingcdn.com/publish-with-us?hsLang=en-us)

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