openscreen.nl - dns.ninja

`openscreen.nl`

DNSSEC	⚠️ Not signed
A	132.229.92.35^{🇳🇱 SURFNET-NL132.229.0.0/16 RUL-NL}
		PTR	`dutchrevolt.eu`
		PTR	`tachtigjarigeoorlog.eu`
		PTR	`euroscholars.net`
		PTR	`abpp2027.nl`
		PTR	`cellobservatory.nl`
		PTR	`expeditie-stadsnatuur-leiden.nl`
		PTR	`femicide.nl`
		PTR	`libraryunlocked.nl`
		PTR	`rekeneninleiden.nl`
		PTR	`studiumgeneraleleiden.nl`
		PTR	`uscleiden.nl`
		PTR	`chembiotalks.org`
		PTR	`dutchrevolt.org`
		PTR	`led3.org`
		PTR	`tachtigjarigeoorlog.org`
		PTR	`ai4life.tech`
		PTR	`dutchrevolt.leiden.edu`
		PTR	`fgga.leiden.edu`
		PTR	`fgga.leidenuniv.nl`
		PTR	`hortus.leidenuniv.nl`
		PTR	`ibl.leidenuniv.nl`
		PTR	`plexus.leidenuniv.nl`
		PTR	`sbb.leidenuniv.nl`
		PTR	`science.leidenuniv.nl`
		PTR	`www.leidenuniversity.nl`
		PTR	`www.rijksuniversiteitleiden.nl`
		PTR	`www.uleiden.nl`
		PTR	`rewriteservice.universiteitleiden.nl`
		PTR	`p-issc-019422.infra.leidenuniv.nl`
		PTR	`lcds.science.leidenuniv.nl`
		PTR	`www.umail.leidenuniv.nl`
NS	`arachne.leidenuniv.nl` ⭐
		A	172.22.101.10^{UNSPECIFIED160.0.0.0/3}
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	`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}
SOA	`arachne.leidenuniv.nl`postmaster@leidenuniv.nl serial=2249

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-08-02 17:30:02 +0000 (EPOCH 1785691802)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-08-02 #35

Same first word

openscreen.cz

openscreen.com

openscreen.co.kr

openscreen.no

openscreen.eu

openscreen.dk

openscreen.nl

Similar names

spencerone.org

screenopen.com

DNS History

10 records (5 active, 5 former)

●NSarachne.leidenuniv.nl2026-03-21 → 2026-08-02 · 3 obs

○ 2017-02-07 18:01:36
● 2026-03-21 17:31:16
● 2026-08-02 18:22:08

○NSns1.networking4all.com2017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 18:01:36
○ 2026-03-21 17:31:16
○ 2026-08-02 18:22:08

●NSns1.surfnet.nl2026-03-21 → 2026-08-02 · 3 obs

○ 2017-02-07 18:01:36
● 2026-03-21 17:31:16
● 2026-08-02 18:22:08

○NSns2.networking4all.net2017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 18:01:36
○ 2026-03-21 17:31:16
○ 2026-08-02 18:22:08

●NSns2.surfnet.nl2026-03-21 → 2026-08-02 · 3 obs

○ 2017-02-07 18:01:36
● 2026-03-21 17:31:16
● 2026-08-02 18:22:08

○NSns3.networking4all.org2017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 18:01:36
○ 2026-03-21 17:31:16
○ 2026-08-02 18:22:08

●NSns3.surfnet.nl2026-03-21 → 2026-08-02 · 3 obs

○ 2017-02-07 18:01:36
● 2026-03-21 17:31:16
● 2026-08-02 18:22:08

○MXmailfwd01.networking4all.net2017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 18:01:36
○ 2026-03-21 17:31:16
○ 2026-08-02 18:22:08

○A132.229.7.1872017-02-07 → 2017-02-07 · 3 obs

● 2017-02-07 18:01:36
○ 2026-03-21 17:31:16
○ 2026-08-02 18:22:08

●A132.229.92.352026-03-21 → 2026-08-02 · 3 obs

○ 2017-02-07 18:01:36
● 2026-03-21 17:31:16
● 2026-08-02 18:22:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
openscreen.nl	ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl	6 records

✅ Authoritative Response

Server:195.169.124.71

NS records: ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 338ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`132.229.92.35`
NS	3	`ns3.surfnet.nl, ns1.surfnet.nl...`
SOA	1	`arachne.leidenuniv.nl postmaster.leidenu`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns1.surfnet.nl, ns1.surfnet.nl, ns2.surfnet.nl...)

Analysis

IP Addresses

openscreen.nl directs to one IP number, which is 132.229.92.35.

Among the host names that share IP numbers with openscreen.nl are globalsociolinguistics.nl, gorlaeusgebouw.nl, tinbergenlecture.com and two others.

Name Servers

The domain openscreen.nl is delegated to these four name servers: arachne.leidenuniv.nl, ns1.surfnet.nl, ns2.surfnet.nl and ns3.surfnet.nl.

openscreen.nl shares at least some of its name servers with other domains, including dehaagsehogeschool.nl, 142.116.145.in-addr.arpa, anderswerkjebijradboudumc.nl and two others.

These name servers are routinely co-deployed with the name servers ns1.zurich.surf.net, ns6.eur.nl, ns-ext-01.wur.nl and two others.

Hosts with two IP numbers each:

The A records for ns1.surfnet.nl return 192.87.106.101 and 2001:610:1:800a:192:87:106:101.

The A records for ns2.surfnet.nl return 192.87.36.2 and 2001:610:3:200a:192:87:36:2.

The A records for ns3.surfnet.nl return 195.169.124.71 and 2001:610:0:800c:195:169:124:71.

Hosts that resolve to one IP address:

arachne.leidenuniv.nl resolves to the IP address 172.22.101.10.