postcode.nu - robtex.com
postcode.nu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 127.0.0.1 | ||||||
| NS | ns1.openprovider.nl ⭐ | ||||||
| A | 2400:cb00:2049:1::a29f:1a0a🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.26.10Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.openprovider.be | ||||||
| A | 2400:cb00:2049:1::a29f:1b60🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.27.96Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns3.openprovider.eu | ||||||
| A | 2400:cb00:2049:1::a29f:3059🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street | ||||||
| A | 162.159.48.89Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | postcode.nu ⭐ 🔒 | ||||||
| A | 127.0.0.1 | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.openprovider.nldns@openprovider.eu 2021-05-17 #2 | ||||||
nu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | catcher-in-the-rye.nic.nu ⭐ | ||||||
| NS | a.ns.nu | ||||||
| NS | c.ns.nu | ||||||
| NS | d.ns.nu | ||||||
| NS | m.ns.nu | ||||||
| NS | y.ns.nu | ||||||
| NS | z.ns.nu | ||||||
| TXT | NU zone update: 2026-07-04 20:27:35 +0000 (EPOCH 1783196855) (auto) | ||||||
| TXT | id:cde8970e-e1ea-4652-b614-7603963e0964 | ||||||
| SOA | catcher-in-the-rye.nic.nuhostmaster@nic.nu serial=1783196916 | ||||||
MX for
postcode.nu |
Subdomains
www.postcode.nu |
Same first word
Similar names
DNS History
13 records (5 active, 8 former)
○NSlocalhost2015-11-16 → 2016-12-05 · 5 obs
● 2015-11-16 19:16:12
● 2016-12-05 13:01:40
○ 2026-02-20 20:42:26
○ 2026-07-04 20:53:30
○NSns1.domeinmatch.nl2015-11-16 → 2016-12-05 · 5 obs
● 2015-11-16 19:16:12
● 2016-12-05 13:01:40
○ 2026-02-20 20:42:26
○ 2026-07-04 20:53:30
●NSns1.openprovider.nl2026-02-20 → 2026-07-04 · 3 obs
● 2026-02-20 20:42:26
● 2026-07-04 20:53:30
○NSns1.sedoparking.com2015-06-22 → 2015-06-22 · 3 obs
○ 2015-11-16 19:16:12
○ 2026-07-04 20:53:30
○NSns2.domeinmatch.nl2015-11-16 → 2016-12-05 · 5 obs
● 2015-11-16 19:16:12
● 2016-12-05 13:01:40
○ 2026-02-20 20:42:26
○ 2026-07-04 20:53:30
●NSns2.openprovider.be2026-02-20 → 2026-07-04 · 3 obs
● 2026-02-20 20:42:26
● 2026-07-04 20:53:30
○NSns2.sedoparking.com2015-06-22 → 2015-06-22 · 3 obs
○ 2015-11-16 19:16:12
○ 2026-07-04 20:53:30
●NSns3.openprovider.eu2026-02-20 → 2026-07-04 · 3 obs
● 2026-02-20 20:42:26
● 2026-07-04 20:53:30
○MXmail.nickstel.com2015-06-22 → 2015-06-22 · 3 obs
○ 2015-11-16 19:16:12
○ 2026-07-04 20:53:30
●MXpostcode.nu2026-02-20 → 2026-07-04 · 6 obs
● 2026-02-20 20:42:26
● 2026-05-04 22:48:50
○ 2026-05-09 14:55:04
● 2026-05-10 00:25:24
● 2026-07-04 20:53:30
●A127.0.0.12026-02-20 → 2026-07-04 · 6 obs
● 2026-02-20 20:42:26
● 2026-05-04 22:48:50
○ 2026-05-09 14:55:04
● 2026-05-10 00:25:24
● 2026-07-04 20:53:30
○A31.7.4.1652015-11-16 → 2016-12-05 · 5 obs
● 2015-11-16 19:16:12
● 2016-12-05 13:01:40
○ 2026-02-20 20:42:26
○ 2026-07-04 20:53:30
○A72.52.4.1192015-06-22 → 2015-06-22 · 3 obs
○ 2015-11-16 19:16:12
○ 2026-07-04 20:53:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nu | a.ns.nu, m.ns.nu, y.ns.nu, c.ns.nu... | - |
| postcode.nu | ns3.openprovider.eu, ns1.openprovider.nl, ns2.openprovider.be | - |
✅ Authoritative Response
Server:162.159.27.96
NS records: ns3.openprovider.eu, ns1.openprovider.nl, ns2.openprovider.be
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 993ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 127.0.0.1 |
| NS | 3 | ns1.openprovider.nl, ns2.openprovider.be... |
| MX | 1 | postcode.nu (pri: 10) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.openprovider.nl dns.openprovider.eu |
Analysis
Hierarchy
www.postcode.nu is delegated beneath postcode.nu.
Mail Server Role
postcode.nu handles its own mail, functioning as its own mail server.
IP Addresses
postcode.nu resolves to just one IP address, 127.0.0.1.
Two other host names, along with die-destille.de, xn--egebudecheck-jcb.de and ns3.physi.cx, also share IP numbers with postcode.nu.
Name Servers
postcode.nu is served by three name servers: ns2.openprovider.be, ns3.openprovider.eu and ns1.openprovider.nl.
There is at least partial name server overlap between postcode.nu and other domains — drift-utrecht.nl, noordvast.com, de-pers.nl and two more among them.
The hostnames ns2.openprovider.be, ns3.openprovider.eu and ns1.openprovider.nl each direct to two IP addresses — ns2.openprovider.be to 162.159.27.96 and 2400:cb00:2049:1::a29f:1b60, ns3.openprovider.eu to 162.159.48.89 and 2400:cb00:2049:1::a29f:3059, and ns1.openprovider.nl to 162.159.26.10 and 2400:cb00:2049:1::a29f:1a0a.