persistent-identifier.nl - dns.ninja

`persistent-identifier.nl`

DNSSEC	🔒 Signed (DS record present)
A	135.181.133.226^{🇫🇮 Hetzner135.181.0.0/16 HETZNER-DC}
		PTR	`kameel.vh.seecr.nl`
NS	`ns1-konbib.kb.nl` ⭐ ⚠️ Not in zone NS records
		A	192.87.31.175^{🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV}
			PTR	`ns1-konbib.kb.nl`
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`
TXT	`HARICA-B83hjICvGa6Mv7knmy2`
SOA	`ns1-konbib.kb.nl`postmaster@kb.nl 2026-05-08 #67

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-07-07 08:30:01 +0000 (EPOCH 1783413001)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-07-07 #17

WOT: UNKNOWN (60/100)

Same first word

persistent-identifier.de

persistent-identifier.nl

DNS History

13 records (4 active, 9 former)

●NSns1-konbib.kb.nl2026-07-07 → 2026-07-07 · 3 obs

○ 2026-04-10 14:22:44
● 2026-07-07 08:57:16
● 2026-07-07 08:57:18

●NSns1.surfnet.nl2018-01-06 → 2026-07-07 · 3 obs

○ 2017-01-18 07:14:06
● 2018-01-06 08:17:00
● 2026-07-07 08:57:18

○NSns1.zurich.suf.net2026-02-17 → 2026-04-10 · 5 obs

○ 2018-01-06 08:17:00
● 2026-02-17 02:54:34
● 2026-04-10 14:22:44
○ 2026-07-07 08:57:16
○ 2026-07-07 08:57:18

●NSns1.zurich.surf.net2018-01-06 → 2026-07-07 · 3 obs

○ 2017-01-18 07:14:06
● 2018-01-06 08:17:00
● 2026-07-07 08:57:18

○NSns11.knaw.nl2015-07-25 → 2017-01-18 · 4 obs

● 2015-07-25 21:09:18
● 2017-01-18 07:14:06
○ 2018-01-06 08:17:00
○ 2026-07-07 08:57:18

○NSns2.knaw.nl2015-07-25 → 2017-01-18 · 4 obs

● 2015-07-25 21:09:18
● 2017-01-18 07:14:06
○ 2018-01-06 08:17:00
○ 2026-07-07 08:57:18

○NSns2.surfnet.nl2018-01-06 → 2026-04-10 · 5 obs

○ 2017-01-18 07:14:06
● 2018-01-06 08:17:00
● 2026-04-10 14:22:44
○ 2026-07-07 08:57:16
○ 2026-07-07 08:57:18

○NSns3.surfnet.nl2018-01-06 → 2026-04-10 · 5 obs

○ 2017-01-18 07:14:06
● 2018-01-06 08:17:00
● 2026-04-10 14:22:44
○ 2026-07-07 08:57:16
○ 2026-07-07 08:57:18

○MXmx1.surfmailfilter.nl2018-01-06 → 2026-02-17 · 4 obs

● 2018-01-06 08:17:00
● 2026-02-17 02:54:34
○ 2026-03-25 01:30:24
○ 2026-07-07 08:57:18

○MXmx2.surfmailfilter.nl2018-01-06 → 2026-02-17 · 4 obs

● 2018-01-06 08:17:00
● 2026-02-17 02:54:34
○ 2026-03-25 01:30:24
○ 2026-07-07 08:57:18

●A135.181.133.2262026-02-17 → 2026-07-07 · 3 obs

○ 2018-01-06 08:17:00
● 2026-02-17 02:54:34
● 2026-07-07 08:57:18

○A194.171.119.1162015-11-22 → 2018-01-06 · 5 obs

○ 2015-07-25 21:09:18
● 2015-11-22 12:50:56
● 2018-01-06 08:17:00
○ 2026-02-17 02:54:34
○ 2026-07-07 08:57:18

○A194.171.144.262015-07-25 → 2015-07-25 · 3 obs

● 2015-07-25 21:09:18
○ 2015-11-22 12:50:56
○ 2026-07-07 08:57:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns3.dns.nl, ns1.dns.nl, ns4.dns.nl	-
persistent-identifier.nl	ns1.zurich.surf.net, ns1.surfnet.nl, ns1-konbib.kb.nl	3 records

✅ Authoritative Response

Server:195.176.255.9

NS records: ns1.zurich.surf.net, ns1.surfnet.nl, ns1-konbib.kb.nl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1695ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`135.181.133.226`
NS	2	`ns1.zurich.surf.net, ns1.surfnet.nl`
TXT	1	`HARICA-B83hjICvGa6Mv7knmy2`
SOA	1	`ns1-konbib.kb.nl postmaster.kb.nl`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.surfnet.nl, ns1.surfnet.nl, ns1-konbib.kb.nl)

Analysis

IP Addresses

persistent-identifier.nl resolves to one IP address: 135.181.133.226.

Other host names, such as kameel.vh.seecr.nl, share IP numbers with persistent-identifier.nl.

Name Servers

persistent-identifier.nl is delegated to three name servers: ns1-konbib.kb.nl, ns1.surfnet.nl and ns1.zurich.surf.net.

persistent-identifier.nl shares at least some of its name servers with other domains, including universiteitmaastricht.nl, rijc.nl, av-m.nl and two others.

These name servers are frequently seen alongside ns2.surfnet.nl, ns3.surfnet.nl, ns2.maastrichtuniversity.eu and 5 other name servers.

Hostnames that resolve to two IP addresses:

ns1.surfnet.nl points to 192.87.106.101 and 2001:610:1:800a:192:87:106:101.

ns1.zurich.surf.net points to 195.176.255.9 and 2001:620:0:9::1103.

Hosts with just one IP address:

ns1-konbib.kb.nl points to 192.87.31.175.