AWS Engineering
A typical request path through AWS — click a component to see what it does, why it's used, and how to keep it healthy.
Route 53
- What it does
- Managed DNS that resolves your domain to the entry point of the application.
- Why it's used
- Gives you health-checked, low-latency DNS resolution instead of relying on a registrar's basic DNS.
- Security considerations
- Use DNSSEC where supported and restrict who can edit hosted zones via IAM.
- Monitoring
- Route 53 health checks and CloudWatch alarms on resolution failures.
- Common problems
- Stale records after infrastructure changes; forgetting to lower TTL before a cutover.