`ciscocertified.info`

DNSSEC	⚠️ Not signed
A	2001:420:1101:1::b^{🇺🇸 AS1092001:420:1100::/41}
		PTR	`redirect.cisco.com`
A	72.163.4.154^{🇺🇸 AS10972.163.4.0/24}
NS	`ns1.cisco.com` ⭐
		A	2001:420:1101:6::a^{AS1092001:420:1100::/41}
		A	72.163.5.201
NS	`ns2.cisco.com`
		A	2001:420:2041:5000::a
		A	64.102.255.44
NS	`ns3.cisco.com`
		A	2001:420:1201:7::a
		A	173.37.146.41
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=1778704908

Same first word

ciscocertified.info

ciscocertified.it

ciscocertified.biz

DNS History

7 records (5 active, 2 former)

○NSedns-aln1-1-l2017-01-08 → 2017-12-22 · 5 obs

○ 2016-04-22 01:52:40
● 2017-01-08 17:36:26
● 2017-12-22 13:41:04
○ 2026-05-03 12:45:52
○ 2026-05-13 21:18:28

○NSedns-aln1-1-l.cisco.com2015-07-13 → 2016-04-22 · 4 obs

● 2015-07-13 22:22:42
● 2016-04-22 01:52:40
○ 2017-01-08 17:36:26
○ 2026-05-13 21:18:28

●NSns1.cisco.com2015-07-13 → 2026-05-13 · 2 obs

● 2015-07-13 22:22:42
● 2026-05-13 21:18:28

●NSns2.cisco.com2015-07-13 → 2026-05-13 · 2 obs

● 2015-07-13 22:22:42
● 2026-05-13 21:18:28

●NSns3.cisco.com2015-07-13 → 2026-05-13 · 2 obs

● 2015-07-13 22:22:42
● 2026-05-13 21:18:28

●A2001:420:1101:1::b2015-07-13 → 2026-05-13 · 2 obs

● 2015-07-13 22:22:42
● 2026-05-13 21:18:28

●A72.163.4.1542015-07-13 → 2026-05-13 · 2 obs

● 2015-07-13 22:22:42
● 2026-05-13 21:18:28

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:64.102.255.44

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ciscocertified.info (unsigned zone)

⏱️ Timing

Total: 862ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`72.163.4.154`
AAAA	1	`2001:420:1101:1::b`
NS	3	`ns1.cisco.com, ns2.cisco.com...`
SOA	1	`ns1.cisco.com postmaster.cisco.com`

Analysis

IP Addresses

ciscocertified.info points to two IP numbers: 2001:420:1101:1::b and 72.163.4.154.

Name Servers

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

ciscocertified.info at least partially shares name servers with other domains, for example tandberguk.co.uk, ciscostudent.com, jetcell.com, netacad-quality.com and femtoapps.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

ciscocertified.info - robtex.com