---
title: Content Delivery Network Blog  | Web Performance
description: Web Performance | CDN Blog | About Content Delivery Network
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 | Web Performance | About Content Delivery Network

Web Performance | CDN Blog | About Content Delivery Network

[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-09-2026-01-51-20-7661-PM.jpeg)](https://blog.blazingcdn.com/en-us/best-image-format-for-the-web-jpeg-png-webp-avif-svg)

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

## [Best Image Format for the Web: JPEG, PNG, WebP, AVIF, SVG](https://blog.blazingcdn.com/en-us/best-image-format-for-the-web-jpeg-png-webp-avif-svg)

 Evaluated November 2026: the best image format for web photos is AVIF with a JPEG fallback, or WebP when encode time ...

 Vadym Borovskyi ·  Nov 9, 2026, 2:53:33 PM 

[Read more](https://blog.blazingcdn.com/en-us/best-image-format-for-the-web-jpeg-png-webp-avif-svg)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-05-2026-03-08-19-4198-PM.jpeg)](https://blog.blazingcdn.com/en-us/jpeg-vs-jpg-is-there-any-difference)

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

## [JPEG vs JPG: Is There Any Difference?](https://blog.blazingcdn.com/en-us/jpeg-vs-jpg-is-there-any-difference)

 There is no technical difference in JPEG vs JPG. Both extensions label the same format, defined by ISO/IEC 10918-1 ...

 Vadym Borovskyi ·  Nov 5, 2026, 4:10:55 PM 

[Read more](https://blog.blazingcdn.com/en-us/jpeg-vs-jpg-is-there-any-difference)

[![](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-01-2026-06-55-11-8888-AM.jpeg)](https://blog.blazingcdn.com/en-us/the-impact-of-cdn-on-seo-and-website-ranking)

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

## [Does a CDN Help SEO? How CDNs Affect Rankings and Core Web Vitals](https://blog.blazingcdn.com/en-us/the-impact-of-cdn-on-seo-and-website-ranking)

 The short answer to "does CDN affect SEO" is yes, but indirectly. Google gives no ranking credit for using a CDN. As of ...

 Vadym Borovskyi ·  Nov 1, 2026, 7:58:07 AM 

[Read more](https://blog.blazingcdn.com/en-us/the-impact-of-cdn-on-seo-and-website-ranking)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Nov-01-2026-04-55-11-4700-AM.jpeg)](https://blog.blazingcdn.com/en-us/what-is-ttfb-time-to-first-byte-definition-use-cases-and-enterprise-context)

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

## [What Is TTFB? Time to First Byte Explained and How to Cut It](https://blog.blazingcdn.com/en-us/what-is-ttfb-time-to-first-byte-definition-use-cases-and-enterprise-context)

 Time to first byte (TTFB) is the time from the moment a client starts a request until the first byte of the response ...

 Vadym Borovskyi ·  Nov 1, 2026, 5:57:43 AM 

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

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Oct-18-2026-07-00-43-6295-AM.jpeg)](https://blog.blazingcdn.com/en-us/cdnjs-javascript-libraries-why-developers-still-love-it-2025)

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

## [cdnjs Explained: How the Public JavaScript CDN Works](https://blog.blazingcdn.com/en-us/cdnjs-javascript-libraries-why-developers-still-love-it-2025)

 cdnjs is an open-source public JavaScript CDN that serves more than 4,000 libraries (2025 index size) from Cloudflare's ...

 Vadym Borovskyi ·  Oct 18, 2026, 9:03:08 AM 

[Read more](https://blog.blazingcdn.com/en-us/cdnjs-javascript-libraries-why-developers-still-love-it-2025)

[![](https://cdn.leonardo.ai/users/50b20153-23ad-4a4e-9850-7b347a32af23/generations/592246a4-bd4c-4243-9b8f-e10d6af2827f/Default_What_is_the_best_CDN_for_WordPress_0.jpg)](https://blog.blazingcdn.com/en-us/what-is-the-best-cdn-for-wordpress)

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

## [What is the best CDN for WordPress?](https://blog.blazingcdn.com/en-us/what-is-the-best-cdn-for-wordpress)

 Imagine this: your latest blog post goes viral overnight, and your WordPress site crashes under the traffic surge. It’s ...

 Vadym Borovskyi ·  Oct 16, 2026, 11:50:23 AM 

[Read more](https://blog.blazingcdn.com/en-us/what-is-the-best-cdn-for-wordpress)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Oct-01-2026-07-00-29-8623-AM.jpeg)](https://blog.blazingcdn.com/en-us/cdn-js-best-practices-minification-versioning-cache-bust-rules)

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

## [CDN JavaScript Best Practices: Versioning and Cache Busting](https://blog.blazingcdn.com/en-us/cdn-js-best-practices-minification-versioning-cache-bust-rules)

 Cache busting changes a JavaScript file's URL whenever its content changes, so browsers and CDN edges fetch the new ...

 Vadym Borovskyi ·  Oct 1, 2026, 9:02:50 AM 

[Read more](https://blog.blazingcdn.com/en-us/cdn-js-best-practices-minification-versioning-cache-bust-rules)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Sep-28-2026-07-00-34-3125-AM.jpeg)](https://blog.blazingcdn.com/en-us/cloudflare-vercel-workflow-deploying-nextjs-edge-caching)

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

## [Cloudflare in Front of Vercel: Next.js Caching Setup and Trade-offs](https://blog.blazingcdn.com/en-us/cloudflare-vercel-workflow-deploying-nextjs-edge-caching)

 Next.js Cloudflare CDN in Front of Vercel: 2026 Caching Playbook Here is the failure pattern we see most often. A route ...

 Vadym Borovskyi ·  Sep 28, 2026, 9:02:41 AM 

[Read more](https://blog.blazingcdn.com/en-us/cloudflare-vercel-workflow-deploying-nextjs-edge-caching)

[![](https://blog.blazingcdn.com/hubfs/Gemini-Blog/image-Sep-24-2026-07-30-24-1334-AM.jpeg)](https://blog.blazingcdn.com/en-us/image-delivery-at-the-edge-webp-avif-and-responsive-sizes)

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

## [Image Delivery at the Edge: WebP, AVIF and Responsive Sizes](https://blog.blazingcdn.com/en-us/image-delivery-at-the-edge-webp-avif-and-responsive-sizes)

 An image CDN should serve AVIF to the roughly 93–95% of browsers that decode it as of 2026, WebP to most of the rest, ...

 Vadym Borovskyi ·  Sep 24, 2026, 9:31:53 AM 

[Read more](https://blog.blazingcdn.com/en-us/image-delivery-at-the-edge-webp-avif-and-responsive-sizes)

← Prev 1 [2](https://blog.blazingcdn.com/en-us/tag/web-performance/page/2) [3](https://blog.blazingcdn.com/en-us/tag/web-performance/page/3) … [5](https://blog.blazingcdn.com/en-us/tag/web-performance/page/5) [Next →](https://blog.blazingcdn.com/en-us/tag/web-performance/page/2)

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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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