`ciscosecuritylab.com`

DNSSEC	⚠️ Not signed
A	4.43.139.82^{🇺🇸 AS33564.0.0.0/9}
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`
MX	`aspmx.l.google.com` ⭐
		A	2a00:1450:4009:c0f::1a^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f26.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:2801::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`lcausi-in-f27.1e100.net`
		A	192.178.128.27^{🇺🇸 Google192.178.128.0/24}
			PTR	`lcausi-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4003:c4a::1a^{🇺🇸 Google2607:f8b0:4003::/48}
			PTR	`yutulth-in-f26.1e100.net`
		A	142.251.96.26^{🇺🇸 Google142.250.0.0/15}
			PTR	`yutulth-in-f26.1e100.net`
TXT	`duo_sso_verification=btadoA1UkWqbKPqzk5Ish38jbx1XDEt0IofIQL92HPnE9aPqNA2B3CEy...`
TXT	`MS=ms44862079`
TXT	`google-site-verification=19xrRAYLkECFw3tNsOKFgO0nrfaSNtRJQlMvg6l_HDs`
SOA	`ns1.cisco.com`postmaster@cisco.com serial=43

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1775194267

Same first word

ciscosecuritylab.com

DNS History

9 records (9 active, 0 former)

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

● 2026-03-31 13:43:02
● 2026-04-03 05:47:04

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

● 2026-03-31 13:43:02
● 2026-04-03 05:47:04

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

● 2026-03-31 13:43:02
● 2026-04-03 05:47:04

●MXalt1.aspmx.l.google.com2026-03-31 → 2026-04-03 · 2 obs

● 2026-03-31 13:43:02
● 2026-04-03 05:47:04

●MXalt2.aspmx.l.google.com2026-03-31 → 2026-04-03 · 2 obs

● 2026-03-31 13:43:02
● 2026-04-03 05:47:04

●MXalt3.aspmx.l.google.com2026-03-31 → 2026-04-03 · 2 obs

● 2026-03-31 13:43:02
● 2026-04-03 05:47:04

●MXalt4.aspmx.l.google.com2026-03-31 → 2026-04-03 · 2 obs

● 2026-03-31 13:43:02
● 2026-04-03 05:47:04

●MXaspmx.l.google.com2026-03-31 → 2026-04-03 · 2 obs

● 2026-03-31 13:43:02
● 2026-04-03 05:47:04

●A4.43.139.822026-03-31 → 2026-04-03 · 2 obs

● 2026-03-31 13:43:02
● 2026-04-03 05:47:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net...	-
ciscosecuritylab.com	ns1.cisco.com, ns2.cisco.com, ns3.cisco.com	6 records

✅ 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 ciscosecuritylab.com (unsigned zone)

⏱️ Timing

Total: 183ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`4.43.139.82`
NS	3	`ns3.cisco.com, ns2.cisco.com...`
MX	5	`aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)...`
TXT	3	`google-site-verification=19xrRAYLkECFw3t, MS=ms44862079...`
SOA	1	`ns1.cisco.com postmaster.cisco.com`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.cisco.com, ns1.cisco.com, ns2.cisco.com...)

Analysis

IP Addresses

ciscosecuritylab.com points to an IP address: 4.43.139.82.

Name Servers

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

ciscosecuritylab.com at least partially shares name servers with other domains, for instance netacad-reports.net, ciscosystems.qh.cn, cisco.tr, tandbergrussia.ru and gridonomic.net.

These name servers are commonly used alongside ns.cisco.com.

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.

Mail Servers

ciscosecuritylab.com is served by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

ciscosecuritylab.com shares at least partially some mail servers with other domains, for instance haciendareal.com.sv, myebca.org, karthika.sg, myfreemen.com and randco.eu.