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Edge & networking
DNS / geo-routing
Resolves domains and steers users to the closest healthy region.
When to use
- Multi-region deployments
- Health-checked failover between regions
Pitfalls
- TTLs delay failover; keep them short for critical records
Options by provider
The first option is what diagrams show for that provider.
Amazon Web Services
- Route 53Managed
Google Cloud
- Cloud DNSManaged
Microsoft Azure
- Azure DNSManaged
- Traffic Manager — DNS-based global routingManaged
Open source / self-hosted
- CoreDNSSelf-hosted
- PowerDNSSelf-hosted
Third-party (works with any cloud)
- Cloudflare DNSManaged
- NS1Managed
Related concepts
Used in
Not used in any system yet.