`collaboration.cisco`

DNSSEC	⚠️ Not signed
A	72.163.4.154^{🇺🇸 ASNTTCISCO72.163.4.0/24 170 West Tasman Drive San Jose CA 95134 United States}
		PTR	`redirect.cisco.com`
NS	`ns1.cisco.com` ⭐
		A	2001:420:1101:6::a^{🇺🇸 ASNTTCISCO2001:420:1100::/41 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns1.cisco.com`
		A	72.163.5.201^{🇺🇸 ASNTTCISCO72.163.0.0/18 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns1.cisco.com`
NS	`ns2.cisco.com`
		A	2001:420:2041:5000::a^{🇺🇸 ASNTTCISCO2001:420:2000::/35 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns2.cisco.com`
		A	64.102.255.44^{🇺🇸 ASNTTCISCO64.102.0.0/16 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns2.cisco.com`
NS	`ns3.cisco.com`
		A	2001:420:1201:7::a^{🇺🇸 ASNTTCISCO2001:420:1200::/41 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns3.cisco.com`
		A	173.37.146.41^{🇺🇸 ASNTTCISCO173.37.128.0/19 170 West Tasman Drive San Jose CA 95134 United States}
			PTR	`ns3.cisco.com`
TXT	`google-site-verification=Gqt_LrWmfRaC-V8XAoqO106YbNtuwPkX8PO7-anFsx0`
SOA	`ns1.cisco.com`postmaster@cisco.com serial=3

`cisco`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nic.cisco` ⭐
	NS	`a.nic.cisco`
	NS	`b.nic.cisco`
	NS	`c.nic.cisco`
	NS	`ns2.dns.nic.cisco`
	NS	`ns3.dns.nic.cisco`
	SOA	`ns1.dns.nic.cisco`admin@tldns.godaddy serial=1775093821

Same first word

Similar names

collobaration.com

DNS History

4 records (4 active, 0 former)

●NSns1.cisco.com2026-03-31 → 2026-04-02 · 2 obs

● 2026-03-31 13:46:32
● 2026-04-02 02:06:52

●NSns2.cisco.com2026-03-31 → 2026-04-02 · 2 obs

● 2026-03-31 13:46:32
● 2026-04-02 02:06:52

●NSns3.cisco.com2026-03-31 → 2026-04-02 · 2 obs

● 2026-03-31 13:46:32
● 2026-04-02 02:06:52

●A72.163.4.1542026-03-31 → 2026-04-02 · 2 obs

● 2026-03-31 13:46:32
● 2026-04-02 02:06:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cisco	ns3.dns.nic.cisco, ns1.dns.nic.cisco, b.nic.cisco, ns2.dns.nic.cisco...	12 records
collaboration.cisco	ns2.cisco.com, ns3.cisco.com, ns1.cisco.com	-

✅ Authoritative Response

Server:173.37.146.41

NS records: ns2.cisco.com, ns3.cisco.com, ns1.cisco.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for collaboration.cisco (unsigned zone)

⏱️ Timing

Total: 384ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`72.163.4.154`
NS	3	`ns2.cisco.com, ns1.cisco.com...`
TXT	1	`google-site-verification=Gqt_LrWmfRaC-V8`
SOA	1	`ns1.cisco.com postmaster.cisco.com`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (ns3.dns.nic.cisco, ns3.dns.nic.cisco, ns1.dns.nic.cisco...)

Analysis

IP Addresses

collaboration.cisco points to IP number 72.163.4.154.

For instance, other host names ciscopress.biz, ciscosystems.ms.it, ciscosystems.tp.it, home.cisco and cisco.org.vi share IP numbers with collaboration.cisco.

Name Servers

The delegation for collaboration.cisco is handled by three name servers: ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.

collaboration.cisco shares name servers with other domains at least partially, for example findsamfisher.mobi, ciscocertifications.com, internetofeverything.com, ciscotelepresence.info and telepresence-support.com.

Host names with two IPs:

ns1.cisco.com points to 2001:420:1101:6::a and 72.163.5.201

ns2.cisco.com points to 2001:420:2041:5000::a and 64.102.255.44

ns3.cisco.com points to 2001:420:1201:7::a and 173.37.146.41

collaboration.cisco - robtex.com