Technical SEO
CDN (Content Delivery Network)
A Content Delivery Network (CDN) is a geographically distributed network of servers that delivers web content — including HTML, CSS, JavaScript, and images — to users from the server closest to their location, reducing latency and improving page load times. Major CDN providers include Cloudflare, Akamai, Fastly, and AWS CloudFront.
CDN performance can be measured through tools like Google PageSpeed Insights, GTmetrix, and WebPageTest, all of which display time-to-first-byte (TTFB) improvements. Core Web Vitals scores in Google Search Console reflect CDN effectiveness, particularly for LCP (Largest Contentful Paint).
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Related Terms
Technical SEO
Cache
It is a type of memory that allows users to engage with the relevant web page faster on their next visit.
Technical SEO
Gzip Compression
Refers to the process of combining and compressing similar indexes, repeated texts, and spaces in a source file.
Measurement
TTFB (Time to First Byte)
Refers to the time between the browser requesting a page and when it receives the first byte of information from the server.
Technical SEO
Website Speed Optimization
Refers to practices to provide faster access to websites.