`ciscocatalyst.info`

DNSSEC	⚠️ Not signed
A	2001:420:1101:1::b^{🇺🇸 ASNTTCISCO2001:420:1100::/41 170 West Tasman Drive San Jose CA 95134 United States}
		PTR	`redirect.cisco.com`
A	72.163.4.154^{🇺🇸 ASNTTCISCO72.163.4.0/24 170 West Tasman Drive San Jose CA 95134 United States}
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`
SOA	`ns1.cisco.com`postmaster@cisco.com serial=5

`info`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.info.afilias-nst.info` ⭐
	NS	`a2.info.afilias-nst.info`
	NS	`b0.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`b2.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`c0.info.afilias-nst.info`
	NS	`d0.info.afilias-nst.org` ⚠️ Not in parent delegation
	SOA	`a0.info.afilias-nst.info`hostmaster@donuts.email serial=1775046872

Same first word

ciscocatalyst.info

ciscocatalyst.us

DNS History

7 records (5 active, 2 former)

○NSedns-aln1-1-l2016-11-19 → 2017-05-25 · 5 obs

○ 2016-04-17 08:44:22
● 2016-11-19 20:24:14
● 2017-05-25 12:08:00
○ 2026-03-31 13:51:44
○ 2026-04-01 13:10:04

○NSedns-aln1-1-l.cisco.com2015-08-06 → 2016-04-17 · 4 obs

● 2015-08-06 13:58:00
● 2016-04-17 08:44:22
○ 2016-11-19 20:24:14
○ 2026-04-01 13:10:04

●NSns1.cisco.com2015-08-06 → 2026-04-01 · 2 obs

● 2015-08-06 13:58:00
● 2026-04-01 13:10:04

●NSns2.cisco.com2015-08-06 → 2026-04-01 · 2 obs

● 2015-08-06 13:58:00
● 2026-04-01 13:10:04

●NSns3.cisco.com2015-08-06 → 2026-04-01 · 2 obs

● 2015-08-06 13:58:00
● 2026-04-01 13:10:04

●A2001:420:1101:1::b2015-08-06 → 2026-04-01 · 2 obs

● 2015-08-06 13:58:00
● 2026-04-01 13:10:04

●A72.163.4.1542015-08-06 → 2026-04-01 · 2 obs

● 2015-08-06 13:58:00
● 2026-04-01 13:10:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a2.info.afilias-nst.info, a0.info.afilias-nst.info, c0.info.afilias-nst.info	-
ciscocatalyst.info	ns1.cisco.com, ns2.cisco.com, ns3.cisco.com	-

✅ Authoritative Response

Server:72.163.5.201

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ciscocatalyst.info (unsigned zone)

⏱️ Timing

Total: 422ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`72.163.4.154`
AAAA	1	`2001:420:1101:1::b`
NS	3	`ns1.cisco.com, ns3.cisco.com...`
SOA	1	`ns1.cisco.com postmaster.cisco.com`

Analysis

IP Addresses

ciscocatalyst.info resolves to two IP numbers: 2001:420:1101:1::b and 72.163.4.154.

other host names including ciscosystems.sr.it, ciscosystems.fr.it, cisco.bj.cn, cisco.sport.hu and ciscou.com share IP numbers with ciscocatalyst.info.

Name Servers

ciscocatalyst.info is delegated to three name servers ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.

ciscocatalyst.info at least partially shares name servers with other domains, for instance cisco-me.com, projectopflex.org, securent.com, ciscosystems.jobs and ciscounite.net.

Host names with two IP numbers:

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.

ciscocatalyst.info - robtex.com