rocflevoland.nl - robtex.com

rocflevoland.nl

DNSSEC🔒 Signed (DS record present)
A145.100.71.135🇳🇱 SURFNET-NL145.100.0.0/15 145.100.0.0/15 aggregate SURFNET-UNO
NSns1.rocva.nl ⭐
A145.100.65.10🇳🇱 SURFNET-NL145.100.0.0/15 145.100.0.0/15 aggregate SURFNET-UNO
PTRns1.rocva.nl
NSns1.surfnet.nl
A2001:610:1:800a:192:87:106:101🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block
PTRns1.surfnet.nl
A192.87.106.101🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV
PTRns1.surfnet.nl
NSns1.zurich.surf.net
A2001:620:0:9::1103🇨🇭 Switch2001:620::/32 SWITCH, The Swiss Education & Research Network
PTRns1.zurich.surf.net
A195.176.255.9🇨🇭 Switch195.176.224.0/19 SWITCH-AGGR.102
PTRns1.zurich.surf.net
NSns2.surfnet.nl
A2001:610:3:200a:192:87:36:2🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block
PTRns2.surfnet.nl
A192.87.36.2🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV
PTRns2.surfnet.nl
NSns3.surfnet.nl
A2001:610:0:800c:195:169:124:71🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block
PTRns3.surfnet.nl
A195.169.124.71🇳🇱 SURFNET-NL195.169.0.0/16 SURFnet CIDR Block VI
MXrocflevoland-nl.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::6🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00406.inbound.protection.outlook.com
A2a01:111:f403:ca04::c🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db9pr02cu00204.inbound.protection.outlook.com
A2a01:111:f403:ca04::d🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db6pr03cu00105.inbound.protection.outlook.com
A2a01:111:f403:ca04::10🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-dbapr03cu00100.inbound.protection.outlook.com
A52.101.68.5🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-du2pr03cu00105.inbound.protection.outlook.com
A52.101.73.4🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am0pr83cu00404.inbound.protection.outlook.com
A52.101.73.24🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as8pr05cu00300.inbound.protection.outlook.com
A52.101.73.30🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am7pr05cu00306.inbound.protection.outlook.com
TXTHARICA-nZr5qPU2tdIwTOILZg3
TXTv=spf1 ip4:145.100.65.12 include:spf.protection.outlook.com -all
TXTMS=ms13755021
SOAns1.rocva.nladmin@rocva.nl serial=2023114078

nl

DNSSEC🔒 Signed (DS record present)
NSns1.dns.nl ⭐
NSns3.dns.nl
NSns4.dns.nl
TXTnl zone update: 2026-04-05 21:00:02 +0000 (EPOCH 1775422802)
SOAns1.dns.nldns@sidn.nl 2026-04-05 #42

Subdomains

www.rocflevoland.nl

Same first word

rocflevoland.nl

DNS History

13 records (7 active, 6 former)

2008201020122014201620182020202220242026NSns1.rocva.nlns1.surfnet.nlns1.zurich.surf.netns2.surfnet.nlns3.surfnet.nlns3.kpn.netns4.kpn.netMXrocflevoland-nl.mail.protection.outlook.commail.rocflevoland.nlmail1.rocflevoland.nlmailbackup1.kpn.netA145.100.71.13583.149.86.107
●NSns1.rocva.nl2026-02-17 → 2026-04-05 · 3 obs
○ 2017-06-24 04:43:48
● 2026-02-17 07:11:08
● 2026-04-05 21:58:50
●NSns1.surfnet.nl2026-02-17 → 2026-04-05 · 3 obs
○ 2017-06-24 04:43:48
● 2026-02-17 07:11:08
● 2026-04-05 21:58:50
●NSns1.zurich.surf.net2026-02-17 → 2026-04-05 · 3 obs
○ 2017-06-24 04:43:48
● 2026-02-17 07:11:08
● 2026-04-05 21:58:50
●NSns2.surfnet.nl2026-02-17 → 2026-04-05 · 3 obs
○ 2017-06-24 04:43:48
● 2026-02-17 07:11:08
● 2026-04-05 21:58:50
○NSns3.kpn.net2007-12-02 → 2017-06-24 · 4 obs
● 2007-12-02 12:28:40
● 2017-06-24 04:43:48
○ 2026-02-17 07:11:08
○ 2026-04-05 21:58:50
●NSns3.surfnet.nl2026-02-17 → 2026-04-05 · 3 obs
○ 2017-06-24 04:43:48
● 2026-02-17 07:11:08
● 2026-04-05 21:58:50
○NSns4.kpn.net2007-12-02 → 2017-06-24 · 4 obs
● 2007-12-02 12:28:40
● 2017-06-24 04:43:48
○ 2026-02-17 07:11:08
○ 2026-04-05 21:58:50
○MXmail.rocflevoland.nl2007-12-02 → 2007-12-02 · 3 obs
● 2007-12-02 12:28:40
○ 2015-07-16 20:40:22
○ 2026-04-05 21:58:50
○MXmail1.rocflevoland.nl2007-12-02 → 2007-12-02 · 3 obs
● 2007-12-02 12:28:40
○ 2015-07-16 20:40:22
○ 2026-04-05 21:58:50
○MXmailbackup1.kpn.net2007-12-02 → 2007-12-02 · 3 obs
● 2007-12-02 12:28:40
○ 2015-07-16 20:40:22
○ 2026-04-05 21:58:50
●MXrocflevoland-nl.mail.protection.outlook.com2015-07-16 → 2026-04-05 · 3 obs
○ 2007-12-02 12:28:40
● 2015-07-16 20:40:22
● 2026-04-05 21:58:50
●A145.100.71.1352026-02-17 → 2026-04-05 · 3 obs
○ 2017-06-24 04:43:48
● 2026-02-17 07:11:08
● 2026-04-05 21:58:50
○A83.149.86.1072015-07-16 → 2017-06-24 · 5 obs
○ 2007-12-02 12:28:40
● 2015-07-16 20:40:22
● 2017-06-24 04:43:48
○ 2026-02-17 07:11:08
○ 2026-04-05 21:58:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns1.dns.nl, ns3.dns.nl, ns4.dns.nl-
rocflevoland.nlns1.zurich.surf.net, ns2.surfnet.nl, ns1.surfnet.nl, ns1.rocva.nl...7 records

✅ Authoritative Response

Server:195.176.255.9

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 891ms | Queries: -

📄 Records

TypeCountSample Data
A1145.100.71.135
NS5ns3.surfnet.nl, ns1.zurich.surf.net...
MX1rocflevoland-nl.mail.protection.outlook.
TXT3v=spf1 ip4:145.100.65.12 include:spf.pro, HARICA-nZr5qPU2tdIwTOILZg3...
SOA1ns1.rocva.nl admin.rocva.nl

📌 Glue Records Collected

Total: 7

Out-of-bailiwick: 7 (ns3.surfnet.nl, ns2.surfnet.nl, ns1.surfnet.nl...)

Analysis

Hierarchy

The parent of www.rocflevoland.nl is rocflevoland.nl.

IP Addresses

rocflevoland.nl points to a single IP: 145.100.71.135.

Other host names, such as www.rocflevoland.nl, share IP numbers with rocflevoland.nl.

Name Servers

rocflevoland.nl is delegated to five name servers: ns1.rocva.nl, ns1.surfnet.nl, ns2.surfnet.nl, ns3.surfnet.nl and ns1.zurich.surf.net.

rocflevoland.nl partially shares name servers with other domains; examples include knaw.net, nationaleballetacademie.nl, nhs-embrace.nl, haagsespreuken.nl and knaw.org.

These name servers are often used with arachne.leidenuniv.nl, ns2.maastrichtuniversity.eu, ns1.maastrichtuniversity.nl, gm.maastrichtuniversity.nl, ns6.eur.nl, ns-ext-01.wur.nl, ns1.saxion.nl and ns2.saxion.nl.

Two IP numbers per host:

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

ns2.surfnet.nl points to: 2001:610:3:200a:192:87:36:2 and 192.87.36.2

ns3.surfnet.nl points to: 2001:610:0:800c:195:169:124:71 and 195.169.124.71

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

One IP number per host:

ns1.rocva.nl points to: 145.100.65.10

Mail Servers

rocflevoland.nl is handled by a single mail server, rocflevoland-nl.mail.protection.outlook.com.

Hostname rocflevoland-nl.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::6, 2a01:111:f403:ca04::c, 2a01:111:f403:ca04::d, 2a01:111:f403:ca04::10, 52.101.68.5, 52.101.73.4, 52.101.73.24 and 52.101.73.30.