intercollege.nl - robtex.com

intercollege.nl

DNSSEC⚠️ Not signed
A51.104.28.72🇬🇧 Microsoft51.104.0.0/15
NSns-573.awsdns-07.net ⭐
A2600:9000:5302:3d00::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-573.awsdns-07.net
A205.251.194.61🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-573.awsdns-07.net
NSns-1137.awsdns-14.org
A2600:9000:5304:7100::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront
PTRns-1137.awsdns-14.org
A205.251.196.113🇺🇸 Amazon205.251.196.0/24 prefix
PTRns-1137.awsdns-14.org
NSns-173.awsdns-21.com
A2600:9000:5300:ad00::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront
PTRns-173.awsdns-21.com
A205.251.192.173🇺🇸 Amazon205.251.192.0/24 prefix
PTRns-173.awsdns-21.com
NSns-1838.awsdns-37.co.uk
A2600:9000:5307:2e00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1838.awsdns-37.co.uk
A205.251.199.46🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1838.awsdns-37.co.uk
MXintercollege-nl.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db3pr0202cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca04::4🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00204.inbound.protection.outlook.com
A2a01:111:f403:ca04::f🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00507.inbound.protection.outlook.com
A2a01:111:f403:ca09::20🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as8pr05cu00400.inbound.protection.outlook.com
A52.101.68.15🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db6pr03cu00107.inbound.protection.outlook.com
A52.101.68.16🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db4pr02cu00400.inbound.protection.outlook.com
A52.101.68.36🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db5pr02cu00104.inbound.protection.outlook.com
A52.101.73.8🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am0pr04cu00500.inbound.protection.outlook.com
TXTMS=ms96898297
TXTgoogle-site-verification=IVuRIgmOQXhMyyB3p2nHMudRe82It9UAXWJkFIBTx38
TXTv=spf1 include:spf.protection.outlook.com ip4:37.230.96.30/32 ipv4:212.54.42....
SOAns-573.awsdns-07.netawsdns-hostmaster@amazon.com serial=1

nl

DNSSEC🔒 Signed (DS record present)
NSns1.dns.nl ⭐
NSns3.dns.nl
NSns4.dns.nl
TXTnl zone update: 2026-03-31 12:00:02 +0000 (EPOCH 1774958402)
SOAns1.dns.nldns@sidn.nl 2026-03-31 #24

Same first word

intercollege.ac.cy
intercollege.su
intercollege.nl
intercollege.com
intercollege.se

DNS History

21 records (6 active, 15 former)

200920112013201520172019202120232025NSns-1137.awsdns-14.orgns-173.awsdns-21.comns-1838.awsdns-37.co.ukns-573.awsdns-07.netns0.transip.netns1.transip.netns1.transip.nlns2.transip.euns2.transip.netMXintercollege-nl.mail.protection.outlook.comfilter1.icpcore.nlfilter2.icpcore.nlmail.xs2.numl1.uno.nlml2.uno.nlms96898297.msv1.invalidA51.104.28.72104.198.1.48104.239.192.243178.79.179.38195.242.99.141
●NSns-1137.awsdns-14.org2026-03-21 → 2026-03-31 · 3 obs
○ 2018-12-16 03:09:26
● 2026-03-21 11:32:24
● 2026-03-31 12:40:22
●NSns-173.awsdns-21.com2026-03-21 → 2026-03-31 · 3 obs
○ 2018-12-16 03:09:26
● 2026-03-21 11:32:24
● 2026-03-31 12:40:22
●NSns-1838.awsdns-37.co.uk2026-03-21 → 2026-03-31 · 3 obs
○ 2018-12-16 03:09:26
● 2026-03-21 11:32:24
● 2026-03-31 12:40:22
●NSns-573.awsdns-07.net2026-03-21 → 2026-03-31 · 3 obs
○ 2018-12-16 03:09:26
● 2026-03-21 11:32:24
● 2026-03-31 12:40:22
○NSns0.transip.net2008-11-28 → 2018-12-16 · 4 obs
● 2008-11-28 01:21:50
● 2018-12-16 03:09:26
○ 2026-03-21 11:32:24
○ 2026-03-31 12:40:22
○NSns1.transip.net2008-11-28 → 2008-11-28 · 3 obs
● 2008-11-28 01:21:50
○ 2015-08-01 01:50:04
○ 2026-03-31 12:40:22
○NSns1.transip.nl2015-08-01 → 2018-12-16 · 5 obs
○ 2008-11-28 01:21:50
● 2015-08-01 01:50:04
● 2018-12-16 03:09:26
○ 2026-03-21 11:32:24
○ 2026-03-31 12:40:22
○NSns2.transip.eu2015-08-01 → 2018-12-16 · 5 obs
○ 2008-11-28 01:21:50
● 2015-08-01 01:50:04
● 2018-12-16 03:09:26
○ 2026-03-21 11:32:24
○ 2026-03-31 12:40:22
○NSns2.transip.net2008-11-28 → 2008-11-28 · 3 obs
● 2008-11-28 01:21:50
○ 2015-08-01 01:50:04
○ 2026-03-31 12:40:22
○MXfilter1.icpcore.nl2008-11-28 → 2008-11-28 · 3 obs
● 2008-11-28 01:21:50
○ 2015-08-01 01:50:04
○ 2026-03-31 12:40:22
○MXfilter2.icpcore.nl2008-11-28 → 2008-11-28 · 3 obs
● 2008-11-28 01:21:50
○ 2015-08-01 01:50:04
○ 2026-03-31 12:40:22
●MXintercollege-nl.mail.protection.outlook.com2018-12-16 → 2026-03-31 · 3 obs
○ 2017-02-10 04:27:48
● 2018-12-16 03:09:26
● 2026-03-31 12:40:22
○MXmail.xs2.nu2015-08-01 → 2016-06-21 · 5 obs
○ 2008-11-28 01:21:50
● 2015-08-01 01:50:04
● 2016-06-21 06:47:52
○ 2017-02-10 04:27:48
○ 2026-03-31 12:40:22
○MXml1.uno.nl2017-02-10 → 2017-02-10 · 4 obs
○ 2016-06-21 06:47:52
● 2017-02-10 04:27:48
○ 2018-12-16 03:09:26
○ 2026-03-31 12:40:22
○MXml2.uno.nl2017-02-10 → 2017-02-10 · 4 obs
○ 2016-06-21 06:47:52
● 2017-02-10 04:27:48
○ 2018-12-16 03:09:26
○ 2026-03-31 12:40:22
○MXms96898297.msv1.invalid2018-12-16 → 2018-12-16 · 4 obs
○ 2017-02-10 04:27:48
● 2018-12-16 03:09:26
○ 2026-03-21 11:32:24
○ 2026-03-31 12:40:22
○A104.198.1.482018-12-16 → 2018-12-16 · 4 obs
○ 2017-02-10 04:27:48
● 2018-12-16 03:09:26
○ 2026-03-21 11:32:24
○ 2026-03-31 12:40:22
○A104.239.192.2432016-06-21 → 2017-02-10 · 5 obs
○ 2016-02-23 09:53:02
● 2016-06-21 06:47:52
● 2017-02-10 04:27:48
○ 2018-12-16 03:09:26
○ 2026-03-31 12:40:22
○A178.79.179.382015-08-01 → 2016-02-23 · 5 obs
○ 2008-11-28 01:21:50
● 2015-08-01 01:50:04
● 2016-02-23 09:53:02
○ 2016-06-21 06:47:52
○ 2026-03-31 12:40:22
○A195.242.99.1412008-11-28 → 2008-11-28 · 3 obs
● 2008-11-28 01:21:50
○ 2015-08-01 01:50:04
○ 2026-03-31 12:40:22
●A51.104.28.722026-03-21 → 2026-03-31 · 3 obs
○ 2018-12-16 03:09:26
● 2026-03-21 11:32:24
● 2026-03-31 12:40:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns1.dns.nl, ns3.dns.nl, ns4.dns.nl-
intercollege.nlns-173.awsdns-21.com, ns-573.awsdns-07.net, ns-1137.awsdns-14.org, ns-1838.awsdns-37.co.uk-

✅ Authoritative Response

Server:205.251.196.113

NS records: ns-173.awsdns-21.com, ns-573.awsdns-07.net, ns-1137.awsdns-14.org, ns-1838.awsdns-37.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for intercollege.nl (unsigned zone)

⏱️ Timing

Total: 405ms | Queries: -

📄 Records

TypeCountSample Data
A151.104.28.72
NS4ns-1137.awsdns-14.org, ns-173.awsdns-21.com...
MX1intercollege-nl.mail.protection.outlook.
TXT3MS=ms96898297, google-site-verification=IVuRIgmOQXhMyyB...
SOA1ns-573.awsdns-07.net awsdns-hostmaster.a

Analysis

IP Addresses

intercollege.nl points to a single IP address: 51.104.28.72.

Other host names such as waws-prod-ln1-059-9b35.uksouth.cloudapp.azure.com, carell.co.uk, ns1.ehattons.com, rothesaylife.com and hosts.ukmanualemergencymode.azurewebsites.net share IPs with intercollege.nl.

Name Servers

intercollege.nl is delegated to four name servers: ns-173.awsdns-21.com, ns-573.awsdns-07.net, ns-1137.awsdns-14.org and ns-1838.awsdns-37.co.uk.

intercollege.nl at least partially shares name servers with other domains, for example brighter-day.jp, hashicorp.chat, d3kvjmdkapjuli.cloudfront.net, enrgtech.net and awbvious.com.

Host names with two IP numbers:

ns-173.awsdns-21.com points to: 2600:9000:5300:ad00::1 and 205.251.192.173

ns-573.awsdns-07.net points to: 2600:9000:5302:3d00::1 and 205.251.194.61

ns-1137.awsdns-14.org points to: 2600:9000:5304:7100::1 and 205.251.196.113

ns-1838.awsdns-37.co.uk points to: 2600:9000:5307:2e00::1 and 205.251.199.46

Mail Servers

The intercollege-nl.mail.protection.outlook.com mail server handles intercollege.nl.

intercollege-nl.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::, 2a01:111:f403:ca04::4, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::20, 52.101.68.15, 52.101.68.16, 52.101.68.36 and 52.101.73.8.