Service Limitations

Quotas and Constraints

Hosted Zone Limits

500 hosted zones per account

Default limit, can be increased via support

10,000 records per hosted zone

Maximum DNS records per zone

Health Check Limits

200 health checks per account

Default limit for health checks

256 child health checks

Maximum for calculated health checks

Query Limits

No query limit

Route 53 scales automatically

100% uptime SLA

Guaranteed availability

Service Limitations Exam Tips

  • • Default limit: 500 hosted zones per account (can be increased)
  • • Maximum 10,000 DNS records per hosted zone
  • • Health checks limited to 200 per account by default
  • • Route 53 has no query limits and provides 100% uptime SLA
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