Route 53 — Complete Guide
Route 53 — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of AWS Cloud Tutorial on Toolliyo Academy.
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AWS Cloud Tutorial · Lesson 18 of 100
Route 53
Core services → Projects
Core services · 1 — AWS basics · ~6 min · AWS — Networking & Security
What is this?
Route 53 is AWS DNS: register domains, host zones, health checks, and routing policies (weighted, latency, failover).
Why should you care?
AwsVerse routes api.awsverse.com to regional ALBs with failover to DR region.
See it live — copy this example
Run in AWS CloudShell / local AWS CLI v2, or follow the matching steps in the AWS Console (Free Tier).
aws route53 change-resource-record-sets \
--hosted-zone-id Z1234567890ABC \
--change-batch '{"Changes":[{"Action":"UPSERT","ResourceRecordSet":{"Name":"api.awsverse.com","Type":"A","AliasTarget":{"HostedZoneId":"Z1234ALB","DNSName":"dualstack.my-alb.ap-south-1.elb.amazonaws.com","EvaluateTargetHealth":true}}}]}What happened?
- Creates an alias A record to an ALB.
- Alias records are free queries to AWS resources and support health evaluation.
Practice next
- Create hosted zone for a domain you control.
- Add A alias to ALB or CloudFront distribution.
- Create health check and failover record for DR drill.
- Add weighted 90/10 split between two ALBs.
- Enable query logging to CloudWatch.
Remember
Route 53 = DNS and traffic policies. Alias records for AWS targets. Health checks enable failover.
AwsVerse blue-green DNS
Deploy new API without downtime.
Outcome: Weighted records shift traffic 10% at a time.
Interview prep for this lesson
Practice these questions aloud after reading—each links to a full structured answer.
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