NS-Global review
A focused free secondary DNS service with AXFR/IXFR, DNSSEC, and global anycast delivery.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
NS-Global is a free secondary DNS service for operators who run their own authoritative DNS servers. It transfers zones from a primary server and serves them through globally distributed anycast DNS endpoints. The service is aimed at websites and personal projects, as well as operators who want a secondary service alongside their primary DNS infrastructure. It runs through the web, requires no user accounts or passwords, and has been available since 2009.
The setup process centers on DNS administration rather than a hosted zone-management workflow. Operators configure their primary server to permit transfers, enable DNS NOTIFY, submit a zone through the signup form, and verify control through the SOA RNAME email address. NS-Global supports both AXFR full zone transfers and IXFR zone synchronization, allowing the secondary service to receive initial data and subsequent changes from the primary server. Once configured, users add ns-global.kjsl.com as an authoritative nameserver. That makes the service a practical fit for teams already comfortable managing authoritative DNS and transfer permissions, but less suitable for users seeking a primary DNS platform with guided administration.
The published service description emphasizes free secondary DNS with no plans to become paid. Its feature set includes DNSSEC support for standard signed zones, DNS NOTIFY processing, globally distributed points of presence, and IPv4 and IPv6 transfer endpoints. NS-Global provides one nameserver address and recommends using additional DNS providers, so it should be considered a focused secondary service rather than a complete multi-provider DNS strategy. Choose it when free AXFR/IXFR support and anycast delivery match an existing primary setup; choose another option when you need broader DNS management or a larger independently configured nameserver footprint.
NS-Global pros and cons
- Where it wins
- Free secondary DNS with no paid plans described
- Supports AXFR, IXFR, DNSSEC, and DNS NOTIFY
- Anycast delivery with IPv4 and IPv6 transfer endpoints
- Where it doesn't
- Requires an existing primary authoritative DNS server
- Provides one nameserver address: ns-global.kjsl.com
- Additional DNS providers are recommended for broader redundancy
NS-Global fact sheet, pricing and score →
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