internetschool.nl - robtex.com

internetschool.nl

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:5920🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::ac43:8892🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.89.32Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.136.146🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdahlia.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a59🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdahlia.ns.cloudflare.com
A2803:f800:50::6ca2:c059🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRdahlia.ns.cloudflare.com
A2a06:98c1:50::ac40:2059🇺🇸 Cloudflare2a06:98c1:50::/45
PTRdahlia.ns.cloudflare.com
A108.162.192.89🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdahlia.ns.cloudflare.com
A172.64.32.89🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdahlia.ns.cloudflare.com
A173.245.58.89🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRdahlia.ns.cloudflare.com
NShans.ns.cloudflare.com
A2606:4700:58::adf5:3baf🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhans.ns.cloudflare.com
A2803:f800:50::6ca2:c1af🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRhans.ns.cloudflare.com
A2a06:98c1:50::ac40:21af🇺🇸 Cloudflare2a06:98c1:50::/45
PTRhans.ns.cloudflare.com
A108.162.193.175🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhans.ns.cloudflare.com
A172.64.33.175🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhans.ns.cloudflare.com
A173.245.59.175🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhans.ns.cloudflare.com
MXinternetschool-nl.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::1🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00401.inbound.protection.outlook.com
A2a01:111:f403:ca04::2🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-du2pr03cu00102.inbound.protection.outlook.com
A2a01:111:f403:ca04::d🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db6pr03cu00105.inbound.protection.outlook.com
A2a01:111:f403:ca09::20🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as8pr05cu00400.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
A52.101.73.1🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am3pr04cu00501.inbound.protection.outlook.com
A52.101.73.28🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am7pr05cu00204.inbound.protection.outlook.com
TXTMS=ms61280732
TXTv=spf1 a mx a:spf.flexfilter.nl include:sendgrid.net include:spf.protection.o...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.89.32, 172.67.136.146
IPv62606:4700:3033::6815:5920, 2606:4700:3033::ac43:8892
SOAdahlia.ns.cloudflare.comdns@cloudflare.com serial=2397710617

nl

DNSSEC🔒 Signed (DS record present)
NSns1.dns.nl ⭐ 🔒
NSns3.dns.nl 🔒
NSns4.dns.nl 🔒
TXTnl zone update: 2026-03-15 06:00:02 +0000 (EPOCH 1773554402)
SOAns1.dns.nldns@sidn.nl 2026-03-15 #12

Subdomains

srv2.internetschool.nl

Same first word

internetschool.nl
internetschool.ru
internetschool.com.br
internetschool.com

Similar names

schoolinternet.nl

DNS History

16 records (7 active, 9 former)

20162017201820192020202120222023202420252026NSdahlia.ns.cloudflare.comhans.ns.cloudflare.comns.hbmg.nlns1.flexwebhosting.nlns2.flexwebhosting.nlns3.flexwebhosting.compicard.dsv.nlMXinternetschool-nl.mail.protection.outlook.commail.hbmg.nlA104.21.89.32172.67.136.1462606:4700:3033::6815:59202606:4700:3033::ac43:8892178.162.169.10185.89.5.14080.95.160.187
●NSdahlia.ns.cloudflare.com2026-03-11 → 2026-03-22 · 3 obs
○ 2020-03-01 21:20:56
● 2026-03-11 11:15:52
● 2026-03-22 12:23:02
●NShans.ns.cloudflare.com2026-03-11 → 2026-03-22 · 3 obs
○ 2020-03-01 21:20:56
● 2026-03-11 11:15:52
● 2026-03-22 12:23:02
○NSns.hbmg.nl2015-07-23 → 2017-03-17 · 4 obs
● 2015-07-23 05:19:30
● 2017-03-17 00:02:30
○ 2020-03-01 21:20:56
○ 2026-03-22 12:23:02
○NSns1.flexwebhosting.nl2020-03-01 → 2020-03-01 · 4 obs
○ 2017-03-17 00:02:30
● 2020-03-01 21:20:56
○ 2026-03-11 11:15:52
○ 2026-03-22 12:23:02
○NSns2.flexwebhosting.nl2020-03-01 → 2020-03-01 · 4 obs
○ 2017-03-17 00:02:30
● 2020-03-01 21:20:56
○ 2026-03-11 11:15:52
○ 2026-03-22 12:23:02
○NSns3.flexwebhosting.com2020-03-01 → 2020-03-01 · 4 obs
○ 2017-03-17 00:02:30
● 2020-03-01 21:20:56
○ 2026-03-11 11:15:52
○ 2026-03-22 12:23:02
○NSpicard.dsv.nl2015-07-23 → 2017-03-17 · 4 obs
● 2015-07-23 05:19:30
● 2017-03-17 00:02:30
○ 2020-03-01 21:20:56
○ 2026-03-22 12:23:02
●MXinternetschool-nl.mail.protection.outlook.com2020-03-01 → 2026-03-22 · 3 obs
○ 2017-03-17 00:02:30
● 2020-03-01 21:20:56
● 2026-03-22 12:23:02
○MXmail.hbmg.nl2015-07-23 → 2017-03-17 · 4 obs
● 2015-07-23 05:19:30
● 2017-03-17 00:02:30
○ 2020-03-01 21:20:56
○ 2026-03-22 12:23:02
●A104.21.89.322026-03-11 → 2026-03-22 · 3 obs
○ 2020-03-01 21:20:56
● 2026-03-11 11:15:52
● 2026-03-22 12:23:02
●A172.67.136.1462026-03-11 → 2026-03-22 · 3 obs
○ 2020-03-01 21:20:56
● 2026-03-11 11:15:52
● 2026-03-22 12:23:02
○A178.162.169.102026-03-11 → 2026-03-22 · 2 obs
○ 2026-03-11 11:15:52
○ 2026-03-22 12:23:02
○A185.89.5.1402020-03-01 → 2020-03-01 · 4 obs
○ 2017-03-17 00:02:30
● 2020-03-01 21:20:56
○ 2026-03-11 11:15:52
○ 2026-03-22 12:23:02
●A2606:4700:3033::6815:59202026-03-11 → 2026-03-22 · 3 obs
○ 2020-03-01 21:20:56
● 2026-03-11 11:15:52
● 2026-03-22 12:23:02
●A2606:4700:3033::ac43:88922026-03-11 → 2026-03-22 · 3 obs
○ 2020-03-01 21:20:56
● 2026-03-11 11:15:52
● 2026-03-22 12:23:02
○A80.95.160.1872015-07-23 → 2017-03-17 · 4 obs
● 2015-07-23 05:19:30
● 2017-03-17 00:02:30
○ 2020-03-01 21:20:56
○ 2026-03-22 12:23:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns1.dns.nl, ns3.dns.nl, ns4.dns.nl-
internetschool.nlhans.ns.cloudflare.com, dahlia.ns.cloudflare.com-

✅ Authoritative Response

Server: 172.64.32.89

NS records: hans.ns.cloudflare.com, dahlia.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 857ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.136.146, 104.21.89.32
AAAA22606:4700:3033::6815:5920, 2606:4700:3033::ac43:8892
NS2dahlia.ns.cloudflare.com, hans.ns.cloudflare.com
MX1internetschool-nl.mail.protection.outloo
TXT2MS=ms61280732, v=spf1 a mx a:spf.flexfilter.nl include:
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1dahlia.ns.cloudflare.com dns.cloudflare.

Analysis

Hierarchy

internetschool.nl is a parent of srv2.internetschool.nl.

IP Addresses

internetschool.nl resolves to four IPs: 2606:4700:3033::6815:5920, 2606:4700:3033::ac43:8892, 104.21.89.32 and 172.67.136.146.

Other host names such as blueboxcounseling.com, cityofsanfransisco.com, myrides.co.uk, deydey.cn and zenportal.us share IP numbers with internetschool.nl.

Name Servers

internetschool.nl is delegated to two name servers: dahlia.ns.cloudflare.com and hans.ns.cloudflare.com.

internetschool.nl uses the same name server setup as other domains, including futurex.com, linkokay.com, kargesoftware.com, ocrif.com and ign7.com.

At least part of the name servers for internetschool.nl are shared with other domains, for instance meltupevent29.com, westminsteracademy.net, dekhogaana.com, iucn-medmis.org and cosedellastromondo.it.

These name servers are often used together with brenda.ns.cloudflare.com, sullivan.ns.cloudflare.com and jaime.ns.cloudflare.com.

Host names with six IP numbers:

dahlia.ns.cloudflare.com points to: 2606:4700:50::adf5:3a59, 2803:f800:50::6ca2:c059, 2a06:98c1:50::ac40:2059, 108.162.192.89, 172.64.32.89 and 173.245.58.89.

hans.ns.cloudflare.com points to: 2606:4700:58::adf5:3baf, 2803:f800:50::6ca2:c1af, 2a06:98c1:50::ac40:21af, 108.162.193.175, 172.64.33.175 and 173.245.59.175.

Mail Servers

The mail server for internetschool.nl is internetschool-nl.mail.protection.outlook.com.

internetschool-nl.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::1, 2a01:111:f403:ca04::2, 2a01:111:f403:ca04::d, 2a01:111:f403:ca09::20, 52.101.68.16, 52.101.68.36, 52.101.73.1 and 52.101.73.28.