Products
Edge DNS
Enterprise-grade authoritative DNS with global anycast distribution, instant propagation, and advanced features like geographic routing and ALIAS records.
On this page5 sections
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 the best 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. They handle all DNS queries from a local zone cache and report query metrics back to the master for analytics.
Supported record types#
| Type | Description | Use case |
|---|---|---|
A |
IPv4 address | Point a domain to a server IP |
AAAA |
IPv6 address | IPv6 connectivity |
CNAME |
Canonical name | Alias one domain to another |
ALIAS |
Apex CNAME alternative | Point the 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 and data retention#
Query metrics are collected and aggregated at multiple granularities:
| Granularity | Retention |
|---|---|
| Minute-level data | 24 hours |
| Hourly aggregates | 7 days |
| Daily aggregates | 90 days |
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