`cogentsystems.com`

DNSSEC	⚠️ Not signed
NS	`dns1.gemalto.com` ⭐
		A	91.241.42.47^{🇫🇷 Verizon-dual-homed-customers91.241.42.0/24}
NS	`dns2.gemalto.com`
		A	91.241.42.51^{🇫🇷 Verizon-dual-homed-customers91.241.42.0/24}
NS	`spdns3.cscdns.net` ⚠️ Not in parent delegation
		A	2610:a1:1022::100^{🇺🇸 MAINT-ID-120082610:a1:1022::/48 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
		A	156.154.130.100^{🇺🇸 MAINT-ID-12008156.154.130.0/24 Neustar}
			PTR	`ns1.arcemus.com`
			PTR	`kandns06.digitalarchives.com`
			PTR	`ns1.euro909.com`
			PTR	`ns2.euro909.com`
			PTR	`indom10.indomco.com`
			PTR	`indom30.indomco.fr`
			PTR	`ns1.ascio.net`
			PTR	`ns3.ascio.net`
			PTR	`dns1.cscdns.net`
			PTR	`pdns1.cscdns.net`
			PTR	`sbdns3.cscdns.net`
			PTR	`spdns3.cscdns.net`
			PTR	`ns0.netnames.net`
			PTR	`ns1.netnames.net`
			PTR	`ns3.netnames.net`
			PTR	`ns5.netnames.net`
			PTR	`ns7.netnames.net`
			PTR	`indom130.indomco.org`
			PTR	`ns2.domainnetwork.se`
			PTR	`ns.domainnetwork.se`
SOA	`dns1.gemalto.com`dnsmaster@gemalto.com 2025-07-25 #1

`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=1774744977

Same first word

cogentsystems.com

cogentsystems.net

cogentsystems.biz

DNS History

8 records (3 active, 5 former)

●NSdns1.gemalto.com2026-03-29 → 2026-03-29 · 2 obs

○ 2017-10-17 18:07:02
● 2026-03-29 00:48:06

●NSdns2.gemalto.com2026-03-29 → 2026-03-29 · 2 obs

○ 2017-10-17 18:07:02
● 2026-03-29 00:48:06

○NSns.3m.com2015-08-07 → 2017-10-17 · 3 obs

● 2015-08-07 00:34:00
● 2017-10-17 18:07:02
○ 2026-03-29 00:48:06

○NSpigseye.mmm.com2015-08-07 → 2017-10-17 · 3 obs

● 2015-08-07 00:34:00
● 2017-10-17 18:07:02
○ 2026-03-29 00:48:06

●NSspdns3.cscdns.net2026-03-29 → 2026-03-29 · 2 obs

○ 2017-10-17 18:07:02
● 2026-03-29 00:48:06

○MXcust43457-1.in.mailcontrol.com2015-08-07 → 2017-10-17 · 3 obs

● 2015-08-07 00:34:00
● 2017-10-17 18:07:02
○ 2026-03-29 00:48:06

○MXcust43457-2.in.mailcontrol.com2015-08-07 → 2017-10-17 · 3 obs

● 2015-08-07 00:34:00
● 2017-10-17 18:07:02
○ 2026-03-29 00:48:06

○A192.28.34.172015-08-07 → 2017-10-17 · 3 obs

● 2015-08-07 00:34:00
● 2017-10-17 18:07:02
○ 2026-03-29 00:48:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net...	-
cogentsystems.com	dns1.gemalto.com, dns2.gemalto.com	2 records

✅ Authoritative Response

Server:91.241.42.47

NS records: dns1.gemalto.com, dns2.gemalto.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cogentsystems.com (unsigned zone)

⏱️ Timing

Total: 289ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	3	`dns2.gemalto.com, spdns3.cscdns.net...`
SOA	1	`dns1.gemalto.com dnsmaster.gemalto.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (dns1.gemalto.com, dns2.gemalto.com)

Analysis

Name Servers

cogentsystems.com is delegated to three name servers: dns1.gemalto.com, dns2.gemalto.com and spdns3.cscdns.net.

cogentsystems.com at least partially shares name servers with other domains, including scaniarentaloffice.com, nordeagroup.lu, sharedservices.health.nz, gemalto.at and nordeainvestmentfunds.lu.

These name servers are typically used together with the name servers ns0.nordea.com, ns1.nordea.com, ns2.nordea.com, ns3.domainnetwork.com, ns2.domainnetwork.se, ns.domainnetwork.se, ns4.scania.com, ns7.scania.com, ns8.scania.com and ns01.healthalliance.co.nz.

Host names with two IP numbers:

spdns3.cscdns.net points to 2610:a1:1022::100 and 156.154.130.100.

Host names with one IP number:

dns1.gemalto.com points to 91.241.42.47.

dns2.gemalto.com points to 91.241.42.51.

cogentsystems.com - robtex.com