science - dns.ninja
science
(root)
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.root-servers.net ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | c.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | d.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | e.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | f.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | g.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | h.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | i.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | j.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | k.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | l.root-servers.net ⚠️ Not in parent delegation | ||||||
| NS | m.root-servers.net ⚠️ Not in parent delegation | ||||||
| SOA | a.root-servers.netnstld@verisign-grs.com 2026-08-13 #0 | ||||||
Subdomains
Same first word
Similar names
DNS History
9 records (6 active, 3 former)
●NSa.nic.science2021-10-27 → 2026-08-13 · 3 obs
● 2021-10-27 16:59:30
● 2026-08-13 07:21:42
●NSb.nic.science2021-10-27 → 2026-08-13 · 3 obs
● 2021-10-27 16:59:30
● 2026-08-13 07:21:42
●NSc.nic.science2021-10-27 → 2026-08-13 · 3 obs
● 2021-10-27 16:59:30
● 2026-08-13 07:21:42
●NSns1.dns.nic.science2015-07-15 → 2026-08-13 · 2 obs
● 2026-08-13 07:21:42
●NSns2.dns.nic.science2015-07-15 → 2026-08-13 · 2 obs
● 2026-08-13 07:21:42
●NSns3.dns.nic.science2015-07-15 → 2026-08-13 · 2 obs
● 2026-08-13 07:21:42
○NSns4.dns.nic.science2015-07-15 → 2021-07-14 · 4 obs
● 2021-07-14 09:09:02
○ 2021-10-27 16:59:30
○ 2026-08-13 07:21:42
○NSns5.dns.nic.science2015-07-15 → 2021-07-14 · 4 obs
● 2021-07-14 09:09:02
○ 2021-10-27 16:59:30
○ 2026-08-13 07:21:42
○NSns6.dns.nic.science2015-07-15 → 2021-07-14 · 4 obs
● 2021-07-14 09:09:02
○ 2021-10-27 16:59:30
○ 2026-08-13 07:21:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| science | a.nic.science, b.nic.science, c.nic.science, ns1.dns.nic.science... | 12 records |
✅ Authoritative Response
Server:156.154.169.41
NS records: a.nic.science, b.nic.science, c.nic.science, ns1.dns.nic.science, ns2.dns.nic.science, ns3.dns.nic.science
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 371ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 6 | a.nic.science, ns2.dns.nic.science... |
| SOA | 1 | ns1.dns.nic.science admin.tldns.godaddy |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.science, a.nic.science, b.nic.science...)
Analysis
Hierarchy
Under science as parent: gist.science, liliarissman.science, for88.science, is-not.science, blinatumomab.science and several hundred other host names.
Name Servers
The DNS delegation for science covers 6 name servers: a.nic.science, b.nic.science, c.nic.science and 3 more.
The DNS delegation for science at least partly coincides with that of other domains, nic.science being one example.
These name servers regularly co-occur with the name servers ns1.dns.nic.science, ns2.dns.nic.science and ns3.dns.nic.science.
Hostnames that resolve to two IP addresses:
a.nic.science maps to two IP addresses — 37.209.192.10 and 2001:dcd:1::10.
b.nic.science maps to two IP addresses — 37.209.194.10 and 2001:dcd:2::10.
c.nic.science maps to two IP addresses — 37.209.196.10 and 2001:dcd:3::10.
ns1.dns.nic.science maps to two IP addresses — 156.154.169.41 and 2610:a1:1071::1:29.
ns2.dns.nic.science maps to two IP addresses — 156.154.170.41 and 2610:a1:1072::1:29.
ns3.dns.nic.science maps to two IP addresses — 156.154.171.41 and 2610:a1:1073::1:29.