fermi.dns.radiinetworks.com
Named for Enrico Fermi
- IPv4
205.251.193.176- IPv6
2600:9000:5301:b000::1
Radii Cloud Platform · Authoritative DNS
Radii Pulse
The authoritative DNS that keeps your domains fast, resilient and always answering, from a global anycast network over IPv4 and IPv6.
$ dig +short NS example.com
fermi.dns.radiinetworks.com.
lawrence.dns.radiinetworks.com.
planck.dns.radiinetworks.com.
bohr.dns.radiinetworks.com.
$ - 4nameservers
- 8addresses
- v4 + v6dual-stack
- Anycastglobal network
Our nameservers
Point your domain at all four. Each one answers over both IPv4 and IPv6.
lawrence.dns.radiinetworks.com
Named for Ernest Lawrence
- IPv4
205.251.194.165- IPv6
2600:9000:5302:a500::1
planck.dns.radiinetworks.com
Named for Max Planck
- IPv4
205.251.196.158- IPv6
2600:9000:5304:9e00::1
bohr.dns.radiinetworks.com
Named for Niels Bohr
- IPv4
205.251.198.200- IPv6
2600:9000:5306:c800::1
Built to always answer
DNS is the first step of every visit to your site. Radii Pulse is designed so that step is never the slow one.
Global anycast
Every nameserver address is announced from many locations at once, so each query is answered by a nearby site.
IPv4 and IPv6
All four nameservers are dual-stack. Resolvers on IPv6-only and IPv4-only networks reach your zone just the same.
Redundant by design
Four independent nameservers. If one path is slow or unreachable, resolvers simply ask another.
Fast propagation
Record changes reach every location within about a minute, so updates go live without waiting.
Every common record
A, AAAA, CNAME, MX, TXT, SRV, CAA, HTTPS, PTR and more, with per-record TTLs you control.
Long-lived delegation
Nameserver records carry a two-day TTL, so resolvers keep the path to your zone cached and lookups stay quick.
Get started
Moving a domain to Radii Pulse takes one change at your registrar.
- Have your zone ready. Make sure your domain and its records are set up on Radii Cloud Platform before you switch, so they answer the moment resolvers ask.
- Open your registrar's nameserver settings. Sign in where you bought the domain and find Nameservers or DNS for it. Choose custom nameservers.
- Enter all four nameservers. Replace the existing entries with:
- fermi.dns.radiinetworks.com
- lawrence.dns.radiinetworks.com
- planck.dns.radiinetworks.com
- bohr.dns.radiinetworks.com
- Save and verify. The registry usually updates within minutes. Resolvers that cached your old nameservers can take up to 48 hours to follow. Use the checker below to confirm.
Confirm the delegation, then ask a Radii nameserver directly, over IPv4 and IPv6:
# Which nameservers does the world see for your domain?
dig +short NS example.com
# Ask Radii Pulse directly
dig @fermi.dns.radiinetworks.com example.com A
# Over IPv6
dig @2600:9000:5301:b000::1 example.com AAAAIn PowerShell, or with nslookup from any command prompt:
# Which nameservers does the world see for your domain?
Resolve-DnsName example.com -Type NS
# Ask Radii Pulse directly
Resolve-DnsName example.com -Server fermi.dns.radiinetworks.com
# Classic nslookup
nslookup -type=NS example.comThe delegation in standard zone-file form, for registries and parent zones that take records directly:
example.com. 172800 IN NS fermi.dns.radiinetworks.com.
example.com. 172800 IN NS lawrence.dns.radiinetworks.com.
example.com. 172800 IN NS planck.dns.radiinetworks.com.
example.com. 172800 IN NS bohr.dns.radiinetworks.com.Is your domain on Radii Pulse?
We look up your domain's nameservers and tell you whether they all point here.
Lookups go from your browser to Google Public DNS. We don't log or store what you enter.
Frequently asked questions
What is Radii Pulse?
Radii Pulse is the authoritative DNS service of Radii Cloud Platform. When anyone on the internet looks up a domain hosted with us, our nameservers give the answer: which address serves the website, where mail goes, and so on.
Can I use these as my computer's DNS server?
No. Authoritative nameservers only answer for the domains they host. They don't look up other sites for you, so setting them on a device or router would stop most websites from loading. Keep your usual resolver for that.
Do the nameservers support IPv6?
Yes. Every Radii nameserver has both an IPv4 and an IPv6 address, and both are listed above.
How long does switching nameservers take?
Your registry usually publishes the change within minutes. Resolvers that already cached your previous nameservers keep using them until that cache expires, which can take up to 48 hours. Keep your old DNS provider's records in place until then.
Do I need glue records?
No. Glue is only needed when a domain's nameservers live inside that same domain. With Radii Pulse you use our nameserver names, so your registrar only needs the four hostnames.
Why use all four nameservers?
Resolvers spread queries across every nameserver you list and retry another if one doesn't respond. Listing all four gives your domain the full redundancy of the network.