知識庫

什麼是 PremiumDNS?

Get to know our premium DNS service

PremiumDNS is our new globally available DNS service which provides you with a 100% service level agreement for DNS resolution. Learn more about ZTABOX's PremiumDNS service.

In addition, PremiumDNS can be used with any domain registered at any registrar. Delivered in partnership with Verisign®, this is one of the most cost-effective high-performance DNS services around for the money.

This service provides:

  • 100% DNS Uptime Guarantee
  • Better Performance - DNS served from multiple fully redundant, globally distributed Anycast locations
  • Advanced DNS DDoS Protection
  • Works with any domain at any registrar
  • Complete DNSSEC support for DNSSEC-signed TLDs
  • Easy to use - for experts and beginners


These DNS servers support the same record types as our BasicDNS does:

  • A record
  • AAAA record
  • CNAME record
  • NS record
  • URL Redirect Record (Permanent 301, Unmasked, Masked)
  • TXT record
  • SRV record
  • MX record
  • MXE record
  • CAA record

Important Information About PremiumDNS

1) It is associated with a particular domain at the moment of purchase and cannot be switched to another domain later.

2) It is possible to use PremiumDNS both for the domains hosted with us and for domains hosted elsewhere.

3) Currently, there is no possibility to run DNSSEC on the PremiumDNS servers for domain names that are not registered with ZTABOX.

Billing cycle

Each Premium DNS subscription should be associated with a particular domain. It is possible to assign only one subscription to a domain name and it cannot be switched to another domain later.

A subscription can be purchased for 1 - 10 years (for domains registered with us, the term should not exceed the current domain’s expiration date).

You can purchase a subscription along with a domain registration/renewal or from the Product Page.

What happens with a domain if I purchase PremiumDNS for it?

If your domain is pointed to our BasicDNS, once a subscription is purchased, the domain in question will be automatically switched to the PremiumDNS nameservers.

In case your domain is using Custom or BackupDNS (a legacy option), you will need to manually enable PremiumDNS for your domain. Please note that host records will be automatically copied for the domains with BackupsDNS (a legacy option), while for the domains with Custom DNS, you will need to create host records manually.

If your domain is registered with another registrar, you will need to set up the following nameservers after PremiumDNS purchase:

pdns1.registrar-servers.com
pdns2.registrar-servers.com

What happens with a domain if a PremiumDNS subscription expires?

This service cannot be reactivated after the expiration, thus, it is needed to buy a new one once it expires.

There is no need to worry if the domain with expired PremiumDNS is registered at ZTABOX - all the host records will be copied to BasicDNS, and the domain will be switched to them afterwards.

Please note that if you are using PremiumDNS for a third-party domain and the service expires, you domain will be experiencing downtime after PremiumDNS expiration. In this case, you need to buy a new subscription.