🌐 Amazon Route 53

Amazon Route 53 is a DNS service from AWS that helps users connect domain names (like example.com) to websites, servers, or cloud services.

🧠 Think of it like:

A phone book for the internet — you type a name (google.com) and Route 53 tells your browser where to go (which server/IP).

🔑 What Route 53 Can Do:

Function What It Means
✅ DNS Resolution Maps domain names to IP addresses
✅ Domain Registration You can buy domains directly on Route 53
✅ Health Checks Automatically reroute traffic if a server is down
✅ Load Balancing Distributes traffic to multiple endpoints (via policies)

🚦 How It Works (Simple Flow):

You type: www.myapp.com
↓
Route 53 checks where it should go
↓
Routes to the correct AWS service or server
↓
You see your website!

🧭 Routing Policies Available:

Policy What It Does
Simple One IP per domain
Weighted Split traffic (e.g., 70% here, 30% there)
Latency-based Send users to the closest/fastest region
Failover Automatically switch to backup server if main is down
Geolocation Route based on user's location

✅ Why Use Route 53?

  • Fast and reliable DNS resolution
  • Deep integration with other AWS services (EC2, S3, ELB)
  • Global traffic routing for high availability
  • Built-in health checks
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