What CDN means
Images, scripts, and pages are cached at edge locations close to users, so they travel a shorter distance.
CDNs such as Cloudflare also absorb traffic spikes and attacks, protecting the main server.
Web Development
CDNContent delivery network
A CDN is a network of servers worldwide that stores copies of a site's files and serves each visitor from the nearest location, making pages faster.
Example
A site hosted in Europe adds a CDN, and visitors in Pakistan load images from a nearby edge server instead of across continents.
Why it matters
A CDN is one of the simplest ways to improve load times and resilience for visitors in many countries.
Keep learning
Related terms.
- Web hostingWeb hosting is the service that stores a website's files and runs its server, so the site is reachable on the internet around the clock.
- Largest Contentful PaintLargest Contentful Paint measures how long the biggest image or text block on screen takes to appear. Good is 2.5 seconds or less.
- Image optimizationImage optimization is making images as small as possible without visible quality loss: right dimensions, modern formats like WebP and AVIF, and compression.
- DNSDNS is the internet's address book. It translates a domain name such as parwazdigital.com into the IP address of the server that hosts the site.
Web Development
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