Web Development Intermediate

What is CDN (Content Delivery Network)?

A distributed network of servers that delivers web content to users from the geographically closest location.

CDNs cache content (images, CSS, JavaScript, videos) at edge servers worldwide. When a user requests content, it is served from the nearest edge server instead of the origin server, reducing latency and load.

Benefits include faster page loads, reduced bandwidth costs, DDoS protection, and high availability. Popular CDNs include Cloudflare, AWS CloudFront, Akamai, and Fastly.

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A set of browser-native APIs for creating reusable, encapsulated custom HTML elements with their own styling and behavior.

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The practice of designing websites that can be used by people with disabilities, following WCAG guidelines.

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Storing copies of frequently accessed data in faster storage to reduce load times and server processing.

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