cisco - robtex.com
cisco
(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 2026-04-11 #1 | ||||||
PTR for
193.14.231.194.in-addr.arpa |
4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.c.5.0.0.8.9.0.1.0.0.a.2.ip6.arpa |
225.246.231.194.in-addr.arpa |
NS for
Subdomains
data-center.cisco |
dod.cisco |
fedramp.cisco |
map.cisco |
collaboration.cisco |
mobility.cisco |
security.cisco |
manufacturing.cisco |
home.cisco |
labs.cisco |
frmod.cisco |
spacesdev-gov.cisco |
servicegrid.cisco |
connected-analytics.cisco |
secure.cisco |
government.cisco |
service-provider.cisco |
cxgov-mod.cisco |
learn.cisco |
nic.cisco |
secureaccessfed.cisco |
us.cisco |
cloud.cisco |
spaces-gov.cisco |
8f13.cisco |
Same first word
Similar names
DNS History
11 records (6 active, 5 former)
●NSa.nic.cisco2026-02-15 → 2026-04-11 · 3 obs
● 2026-02-15 20:12:18
● 2026-04-11 19:35:46
●NSb.nic.cisco2026-02-15 → 2026-04-11 · 3 obs
● 2026-02-15 20:12:18
● 2026-04-11 19:35:46
●NSc.nic.cisco2026-02-15 → 2026-04-11 · 3 obs
● 2026-02-15 20:12:18
● 2026-04-11 19:35:46
●NSns1.dns.nic.cisco2015-09-03 → 2026-04-11 · 2 obs
● 2026-04-11 19:35:46
●NSns2.dns.nic.cisco2015-09-03 → 2026-04-11 · 2 obs
● 2026-04-11 19:35:46
●NSns3.dns.nic.cisco2015-09-03 → 2026-04-11 · 2 obs
● 2026-04-11 19:35:46
○NSns4.dns.nic.cisco2015-09-03 → 2021-08-07 · 4 obs
● 2021-08-07 05:42:54
○ 2026-02-15 20:12:18
○ 2026-04-11 19:35:46
○NSns5.dns.nic.cisco2015-09-03 → 2021-08-07 · 4 obs
● 2021-08-07 05:42:54
○ 2026-02-15 20:12:18
○ 2026-04-11 19:35:46
○NSns6.dns.nic.cisco2015-09-03 → 2021-08-07 · 4 obs
● 2021-08-07 05:42:54
○ 2026-02-15 20:12:18
○ 2026-04-11 19:35:46
○MXyour-dns-needs-immediate-attention.cisco2015-09-03 → 2016-02-29 · 4 obs
● 2016-02-29 15:30:00
○ 2016-03-06 07:26:38
○ 2026-04-11 19:35:46
○A127.0.53.532015-09-03 → 2016-02-29 · 4 obs
● 2016-02-29 15:30:00
○ 2016-03-06 07:26:38
○ 2026-04-11 19:35:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cisco | ns1.dns.nic.cisco, a.nic.cisco, b.nic.cisco, c.nic.cisco... | 12 records |
✅ Authoritative Response
Server:156.154.159.44
NS records: ns1.dns.nic.cisco, a.nic.cisco, b.nic.cisco, c.nic.cisco, ns3.dns.nic.cisco, ns2.dns.nic.cisco
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 192ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 6 | b.nic.cisco, ns3.dns.nic.cisco... |
| SOA | 1 | ns1.dns.nic.cisco admin.tldns.godaddy |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (ns3.dns.nic.cisco, ns2.dns.nic.cisco, ns1.dns.nic.cisco...)
Related
Analysis
Hierarchy
cisco is a parent of data-center.cisco, dod.cisco, fedramp.cisco, map.cisco, collaboration.cisco and several other host names.
Name Server Role
For arsotechnology.com, cisco is used as a name server.
011-86-10-8531, 020-7219 and 0353110 are commonly used as name servers together with cisco.
Name Servers
cisco is delegated to six name servers: a.nic.cisco, b.nic.cisco, c.nic.cisco, ns1.dns.nic.cisco, ns2.dns.nic.cisco and ns3.dns.nic.cisco.
cisco at least partially shares its name servers with other domains, for instance nic.cisco.
Host names with two IP numbers:
a.nic.cisco points to 2001:dcd:1::9 and 37.209.192.9.
b.nic.cisco points to 2001:dcd:2::9 and 37.209.194.9.
c.nic.cisco points to 2001:dcd:3::9 and 37.209.196.9.
ns1.dns.nic.cisco points to 2610:a1:1071::2c and 156.154.144.44.
ns2.dns.nic.cisco points to 2610:a1:1072::2c and 156.154.145.44.
ns3.dns.nic.cisco points to 2610:a1:1073::2c and 156.154.159.44.