DNS
Edge DNS
Enterprise-grade authoritative DNS with global anycast distribution, instant propagation, and advanced features like geographic routing and ALIAS records.
Key Features
Global Anycast Network
DNS queries are automatically routed to the nearest point of presence for ultra-low latency resolution worldwide.
Instant Propagation
Changes propagate to all edge nodes within seconds. No more waiting for TTL expiration or delayed updates.
DDoS Protection
Built-in protection against DNS amplification attacks and query floods with automatic rate limiting and filtering.
Geographic Routing
Route traffic to different endpoints based on the geographic location of the DNS resolver for optimal user experience.
Architecture
Edge DNS uses a master/slave architecture for reliability and performance:
Master Server
Handles zone management, record updates, and API requests. Pushes changes to all slave nodes in real-time via NATS messaging.
Slave Nodes
Distributed globally via anycast. Handle all DNS queries with local zone cache. Report query metrics back to master for analytics.
Supported Record Types
| Type | Description | Use Case |
|---|---|---|
A | IPv4 address | Point domain to server IP |
AAAA | IPv6 address | IPv6 connectivity |
CNAME | Canonical name | Alias one domain to another |
ALIAS | Apex CNAME alternative | Point root domain to another hostname |
MX | Mail exchange | Email routing |
TXT | Text record | SPF, DKIM, domain verification |
NS | Name server | Delegate subdomains |
CAA | Certification Authority Authorization | Control which CAs can issue certificates |
SRV | Service record | Service discovery (SIP, XMPP, etc.) |
PTR | Pointer record | Reverse DNS lookups |
Metrics & Data Retention
Query metrics are collected and aggregated at multiple granularities: