Edge locations are AWS sites, separate from Regions, positioned close to end users to deliver content with low latency. They’re the backbone of CloudFront and several other edge services.
What runs at the edge
CloudFront caches content at edge locations; Route 53 and AWS Global Accelerator use the edge network for fast routing; Lambda@Edge runs code there. The tell is “serve/cache content close to users to reduce latency.” Edge locations are far more numerous than Regions.
Test yourself
A global audience experiences high latency loading static content served from one Region. Using edge locations, what reduces their latency?
- Amazon CloudFront caching at edge locations
- Adding more Availability Zones
- A larger EC2 instance
- Enabling S3 Versioning
👉 Click to reveal the answer & explanation
Correct answer: A. CloudFront caches content at edge locations near users, cutting latency globally. More AZs (B) improve in-Region availability, not global latency; a bigger instance (C) and versioning (D) don’t address edge delivery.
Related topics
Regions & Availability Zones · Amazon CloudFront · Global Accelerator
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