server.duc.nu - robtex.com

server.duc.nu

DNSSEC⚠️ Not signed
A2a01:7c8:aabc:195:5054:ff:fe01:5f0f🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network
PTRserver.duc.nu
A37.97.138.20🇳🇱 TRANSIP-AS37.97.128.0/17 TransIP BV Amsterdam, The Netherlands

duc.nu

DNSSEC🔒 Signed (DS record present)
A37.97.138.20🇳🇱 TRANSIP-AS37.97.128.0/17 TransIP BV Amsterdam, The Netherlands
NSns0.transip.net ⭐
NSns1.transip.nl
NSns2.transip.eu
MXduc.nu ⭐ 🔒
MXrelay.transip.nl(20)
TXTv=spf1 include:_spf.transip.email ip4:37.97.138.20 ip6:2a01:7c8:aabc:195:5054...
SOAns0.transip.nethostmaster@transip.nl 2023-07-03 #0
WOT: SAFE (60/100)

PTR for

f.0.f.5.1.0.e.f.f.f.0.0.4.5.0.5.5.9.1.0.c.b.a.a.8.c.7.0.1.0.a.2.ip6.arpa

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DNS History

2 records (2 active, 0 former)

A2a01:7c8:aabc:195:5054:ff:fe01:5f0f37.97.138.20
●A2a01:7c8:aabc:195:5054:ff:fe01:5f0f2026-03-19 → 2026-03-24 · 2 obs
● 2026-03-19 13:36:54
● 2026-03-24 22:25:34
●A37.97.138.202026-03-19 → 2026-03-24 · 2 obs
● 2026-03-19 13:36:54
● 2026-03-24 22:25:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nua.ns.nu, c.ns.nu, d.ns.nu, m.ns.nu...12 records
duc.nuns2.transip.eu, ns1.transip.nl, ns0.transip.net-

✅ Authoritative Response

Server:195.135.195.195

NS records: ns2.transip.eu, ns1.transip.nl, ns0.transip.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 950ms | Queries: -

📄 Records

TypeCountSample Data
A137.97.138.20
AAAA12a01:7c8:aabc:195:5054:ff:fe01:5f0f

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.ns.nu, c.ns.nu, d.ns.nu...)

Analysis

IP Addresses

server.duc.nu points to two IPs: 2a01:7c8:aabc:195:5054:ff:fe01:5f0f and 37.97.138.20.

Other host names such as adje.net, duc.nu, nijverbouw.com and fmulder.com share IP numbers with server.duc.nu.