mail.cooltec.nl - robtex.com

mail.cooltec.nl

DNSSEC⚠️ Not signed
A2a01:4f8:1c17:fa73::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A142.132.181.81🇩🇪 Hetzner142.132.128.0/17 HETZNER-DC

cooltec.nl

DNSSEC🔒 Signed (DS record present)
A2a01:4f8:c014:b2d8::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A88.198.116.121🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4
NSns1.dovendi.nl ⭐
NSns2.dovendi.eu
NSns3.dovendi.eu
MXmailx.xnsregistrar.com ⭐
TXTv=spf1 -all
TXTdan-ownership-verification=2de7dbe2
TXTafternic-verification-8jDbcERHhqPtecPbFcqVib
TXTc604ce15b99eb0dfb8d78cf6ae04008d34e61ed6
SOAns1.dovendi.nlinfo@dovendi.com 2026-03-20 #5

Previously MX for

cooltec.nl

Same first word

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DNS History

3 records (2 active, 1 former)

20162017201820192020202120222023202420252026A142.132.181.812a01:4f8:1c17:fa73::187.101.2.14
●A142.132.181.812026-03-29 → 2026-03-29 · 2 obs
○ 2016-09-09 04:02:16
● 2026-03-29 03:06:12
●A2a01:4f8:1c17:fa73::12026-03-29 → 2026-03-29 · 2 obs
○ 2016-09-09 04:02:16
● 2026-03-29 03:06:12
○A87.101.2.142015-08-21 → 2016-09-09 · 3 obs
● 2015-08-21 04:03:14
● 2016-09-09 04:02:16
○ 2026-03-29 03:06:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns1.dns.nl, ns3.dns.nl, ns4.dns.nl-
cooltec.nlns3.dovendi.eu, ns1.dovendi.nl, ns2.dovendi.eu-

✅ Authoritative Response

Server:91.107.180.97

NS records: ns3.dovendi.eu, ns1.dovendi.nl, ns2.dovendi.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1358ms | Queries: -

📄 Records

TypeCountSample Data
A1142.132.181.81
AAAA12a01:4f8:1c17:fa73::1

Analysis

IP Addresses

mail.cooltec.nl points to two IPs: 2a01:4f8:1c17:fa73::1 and 142.132.181.81.

Other host names, for instance mail.depac.nl, kidszone.nl, mail.rubeus.co.uk, www.dpmc.nl and mail.inspiratiewerkt.nl share IP numbers with mail.cooltec.nl.