centerdata.com - dns.ninja

`centerdata.com`

DNSSEC	⚠️ Not signed
A	37.148.177.148^{🇧🇪 COMBELL-AS37.148.176.0/21 COMBELL Network}
		PTR	`37.148.177.148.static.hosted.by.combell.com`
NS	`ns1.surfnet.nl` ⭐
		A	2001:610:1:800a:192:87:106:101^{🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block}
			PTR	`ns1.surfnet.nl`
		A	192.87.106.101^{🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV}
			PTR	`ns1.surfnet.nl`
NS	`ns1.zurich.surf.net`
		A	2001:620:0:9::1103^{🇨🇭 Switch2001:620::/32 SWITCH, The Swiss Education & Research Network}
			PTR	`ns1.zurich.surf.net`
		A	195.176.255.9^{🇨🇭 Switch195.176.224.0/19 SWITCH-AGGR.102}
			PTR	`ns1.zurich.surf.net`
NS	`ns2.surfnet.nl`
		A	2001:610:3:200a:192:87:36:2^{🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block}
			PTR	`ns2.surfnet.nl`
		A	192.87.36.2^{🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV}
			PTR	`ns2.surfnet.nl`
NS	`ns3.surfnet.nl`
		A	2001:610:0:800c:195:169:124:71^{🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block}
			PTR	`ns3.surfnet.nl`
		A	195.169.124.71^{🇳🇱 SURFNET-NL195.169.0.0/16 SURFnet CIDR Block VI}
TXT	`HARICA-R3N7JanHeKNpnQxWvvS`
TXT	`v=spf1 -all`
TXT	`v=DKIM1; p=`
SOA	`ns1.surfnet.nl`dns-beheer@surf.nl 2026-03-19 #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=1783797607

Same first word

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DNS History

14 records (5 active, 9 former)

○NSns1.prioserve.net2015-06-15 → 2020-03-26 · 5 obs

○ 2008-03-20 10:21:36
● 2015-06-15 12:23:06
● 2020-03-26 06:28:36
○ 2026-02-18 14:32:00
○ 2026-07-11 19:40:38

○NSns1.prioserve02.net2008-03-20 → 2008-03-20 · 3 obs

● 2008-03-20 10:21:36
○ 2015-06-15 12:23:06
○ 2026-07-11 19:40:38

●NSns1.surfnet.nl2026-02-18 → 2026-07-11 · 3 obs

○ 2020-03-26 06:28:36
● 2026-02-18 14:32:00
● 2026-07-11 19:40:38

●NSns1.zurich.surf.net2026-02-18 → 2026-07-11 · 3 obs

○ 2020-03-26 06:28:36
● 2026-02-18 14:32:00
● 2026-07-11 19:40:38

○NSns2.prioserve.net2015-06-15 → 2020-03-26 · 5 obs

○ 2008-03-20 10:21:36
● 2015-06-15 12:23:06
● 2020-03-26 06:28:36
○ 2026-02-18 14:32:00
○ 2026-07-11 19:40:38

○NSns2.prioserve02.net2008-03-20 → 2008-03-20 · 3 obs

● 2008-03-20 10:21:36
○ 2015-06-15 12:23:06
○ 2026-07-11 19:40:38

●NSns2.surfnet.nl2026-02-18 → 2026-07-11 · 3 obs

○ 2020-03-26 06:28:36
● 2026-02-18 14:32:00
● 2026-07-11 19:40:38

○NSns3.prioserve.eu2015-06-15 → 2020-03-26 · 5 obs

○ 2008-03-20 10:21:36
● 2015-06-15 12:23:06
● 2020-03-26 06:28:36
○ 2026-02-18 14:32:00
○ 2026-07-11 19:40:38

●NSns3.surfnet.nl2026-02-18 → 2026-07-11 · 3 obs

○ 2020-03-26 06:28:36
● 2026-02-18 14:32:00
● 2026-07-11 19:40:38

○NSns4.prioserve.nl2015-06-15 → 2020-03-26 · 5 obs

○ 2008-03-20 10:21:36
● 2015-06-15 12:23:06
● 2020-03-26 06:28:36
○ 2026-02-18 14:32:00
○ 2026-07-11 19:40:38

○MXmail.centerdata.com2008-03-20 → 2020-03-26 · 4 obs

● 2008-03-20 10:21:36
● 2020-03-26 06:28:36
○ 2026-02-18 14:32:00
○ 2026-07-11 19:40:38

●A37.148.177.1482026-02-18 → 2026-07-11 · 3 obs

○ 2020-03-26 06:28:36
● 2026-02-18 14:32:00
● 2026-07-11 19:40:38

○A84.246.6.742008-03-20 → 2008-03-20 · 3 obs

● 2008-03-20 10:21:36
○ 2015-06-15 12:23:06
○ 2026-07-11 19:40:38

○A91.216.141.322015-06-15 → 2020-03-26 · 5 obs

○ 2008-03-20 10:21:36
● 2015-06-15 12:23:06
● 2020-03-26 06:28:36
○ 2026-02-18 14:32:00
○ 2026-07-11 19:40:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
centerdata.com	ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl, ns1.zurich.surf.net	-

✅ Authoritative Response

Server:192.87.36.2

NS records: ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl, ns1.zurich.surf.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for centerdata.com (unsigned zone)

⏱️ Timing

Total: 633ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.148.177.148`
NS	4	`ns3.surfnet.nl, ns1.zurich.surf.net...`
MX	1	`. (pri: 0)`
TXT	3	`v=DKIM1; p=, HARICA-R3N7JanHeKNpnQxWvvS...`
SOA	1	`ns1.surfnet.nl dns-beheer.surf.nl`

Analysis

IP Addresses

centerdata.com directs to one IP number, which is 37.148.177.148.

Among the host names that share IP numbers with centerdata.com are surveycodings.org, dhsdata.net, dhsdata.nl and two others.

Name Servers

The domain centerdata.com is delegated to these four name servers: ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl and ns1.zurich.surf.net.

The name servers of centerdata.com overlap at least partially with those of other domains — among them biometris.com, 146.118.145.in-addr.arpa, onderwijsgroepnoord.nl and two more.

These name servers commonly appear in delegations together with arachne.leidenuniv.nl, ns-ext-01.wur.nl, ns2.maastrichtuniversity.eu and 7 other.

Each of the four hosts ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl and ns1.zurich.surf.net has two IP addresses. ns1.surfnet.nl points to 192.87.106.101 and 2001:610:1:800a:192:87:106:101. ns2.surfnet.nl points to 192.87.36.2 and 2001:610:3:200a:192:87:36:2. ns3.surfnet.nl points to 195.169.124.71 and 2001:610:0:800c:195:169:124:71. ns1.zurich.surf.net points to 195.176.255.9 and 2001:620:0:9::1103.