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

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[🗄️ 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)

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[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 - Networking & ISP (2) | About Content Delivery Network

Infrastructure - Networking & ISP | 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-03-2026-12-35-39-5806-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-02-2026-05-25-08-9163-AM.jpeg)](https://blog.blazingcdn.com/en-us/the-impact-of-cdns-on-global-internet-traffic)

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

## [How CDNs Shape Global Internet Traffic: The Data in 2026](https://blog.blazingcdn.com/en-us/the-impact-of-cdns-on-global-internet-traffic)

 Public measurements say the majority of global internet traffic now leaves a cache, not an origin. A widely cited ...

 Vadym Borovskyi ·  Nov 2, 2026, 6:27:11 AM 

[Read more](https://blog.blazingcdn.com/en-us/the-impact-of-cdns-on-global-internet-traffic)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-01-2026-11-35-35-7799-PM.jpeg)](https://blog.blazingcdn.com/en-us/dns-cache-explained-how-to-flush-and-clear-it)

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

## [DNS Cache Explained: How to Flush and Clear It](https://blog.blazingcdn.com/en-us/dns-cache-explained-how-to-flush-and-clear-it)

 Your DNS cache holds every resolved record until its TTL (time to live) runs out. After a DNS or CDN change, you fix ...

 Vadym Borovskyi ·  Nov 2, 2026, 12:37:45 AM 

[Read more](https://blog.blazingcdn.com/en-us/dns-cache-explained-how-to-flush-and-clear-it)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-01-2026-06-25-16-5332-AM.jpeg)](https://blog.blazingcdn.com/en-us/jitter-and-packet-loss-cdn-network-quality-beyond-latency)

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

## [What Is Packet Loss and Jitter? Causes, Tests and Fixes](https://blog.blazingcdn.com/en-us/jitter-and-packet-loss-cdn-network-quality-beyond-latency)

 Packet loss is the share of packets that leave a sender but never reach the receiver, and jitter is the variation in ...

 Vadym Borovskyi ·  Nov 1, 2026, 7:27:34 AM 

[Read more](https://blog.blazingcdn.com/en-us/jitter-and-packet-loss-cdn-network-quality-beyond-latency)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-01-2026-04-25-13-9252-AM.jpeg)](https://blog.blazingcdn.com/en-us/what-is-anycast-definition-use-cases-and-enterprise-context)

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

## [What Is Anycast? How Anycast Routing Speeds Up the Internet](https://blog.blazingcdn.com/en-us/what-is-anycast-definition-use-cases-and-enterprise-context)

 Anycast is a network addressing and routing model in which servers in many locations announce the same IP prefix, ...

 Vadym Borovskyi ·  Nov 1, 2026, 5:27:33 AM 

[Read more](https://blog.blazingcdn.com/en-us/what-is-anycast-definition-use-cases-and-enterprise-context)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-01-2026-03-25-12-6615-AM.jpeg)](https://blog.blazingcdn.com/en-us/what-is-latency-definition-use-cases-and-enterprise-context)

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

## [What Is Latency? Network Latency Explained With Real Numbers](https://blog.blazingcdn.com/en-us/what-is-latency-definition-use-cases-and-enterprise-context)

 The short answer to what is latency: it is the delay between a sender emitting data and the receiver being able to use ...

 Vadym Borovskyi ·  Nov 1, 2026, 4:28:29 AM 

[Read more](https://blog.blazingcdn.com/en-us/what-is-latency-definition-use-cases-and-enterprise-context)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Oct-31-2026-08-25-13-2803-PM.jpeg)](https://blog.blazingcdn.com/en-us/cdn-internet-backbone-explained-anycast-ixps-tier-1-networks)

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

## [CDN Internet Backbone Explained: Anycast, IXPs and Tier 1 Networks](https://blog.blazingcdn.com/en-us/cdn-internet-backbone-explained-anycast-ixps-tier-1-networks)

 Light in fiber covers about 200 km per millisecond, so every 1,000 km of path adds roughly 10 ms of round-trip time ...

 Vadym Borovskyi ·  Oct 31, 2026, 9:27:25 PM 

[Read more](https://blog.blazingcdn.com/en-us/cdn-internet-backbone-explained-anycast-ixps-tier-1-networks)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Oct-27-2026-08-00-43-1112-AM.jpeg)](https://blog.blazingcdn.com/en-us/quic-protocol-internals-how-it-actually-works-on-the-wire)

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

## [QUIC Protocol Explained: How It Works on the Wire](https://blog.blazingcdn.com/en-us/quic-protocol-internals-how-it-actually-works-on-the-wire)

 The QUIC protocol is a UDP-based transport, published as RFC 9000 in 2021, that merges the TLS 1.3 handshake into its ...

 Vadym Borovskyi ·  Oct 27, 2026, 9:03:22 AM 

[Read more](https://blog.blazingcdn.com/en-us/quic-protocol-internals-how-it-actually-works-on-the-wire)

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