Introduction

• CDN, caches ur content all around the world hence improving user expeirnces
• Improves read performance, content is cached at the edge location
• Improves users experience
• 216 Point of Presence globally (edge locations)
• DDoS protection (because worldwide), integration with Shield, AWS Web Application Firewal

First time access pe eik user US ka requet kare ga and cache karle ga apne paas, now whwnever US new user requests they will access from edge location jaha as cache save hai

Origins can be:

• S3 bucket • For distributing files and caching them at the edge • Enhanced security with CloudFront Origin Access Control (OAC) • OAC is replacing Origin Access Identity (OAI) • CloudFront can be used as an ingress (to upload files to S3)
• Custom Origin (HTTP) • Application Load Balancer • EC2 instance • S3 website (must first enable the bucket as a static S3 website) • Any HTTP backend you want

make srequest, in edge, no. go orgin save it in local cache, next time same request bring it in from casche directly instead of oriign

this is how it works: dabbe are edge locations

when u click on open: