postcode.nu - dns.ninja

`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	162.159.26.10^{Cloudflare162.159.26.0/24 , 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	162.159.27.96^{Cloudflare162.159.27.0/24 , 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	162.159.48.89^{Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`postcode.nu` ⭐ 🔒
		A	127.0.0.1
TXT	`v=spf1 -all`
SOA	`ns1.openprovider.nl`dns@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	`id:a67c425c-a937-45c2-acab-4e4e10b7ed94`
	TXT	`NU zone update: 2026-06-04 04:10:47 +0000 (EPOCH 1780546247) (auto)`
	SOA	`catcher-in-the-rye.nic.nu`hostmaster@nic.nu serial=1780546305

MX for

postcode.nu

Subdomains

www.postcode.nu

Same first word

postcode.site

postcode.us

postcode.co.nz

postcode.at

postcode.games

postcode.ca

postcode.ws

postcode.lt

postcode.eu

postcode.com

postcode.nl

postcode.online

postcode.df.gov.br

postcode.ru

postcode.directory

postcode.cn

postcode.net

postcode.ro

postcode.nu

postcode.in

postcode.vn

postcode.fr

postcode.org.uk

postcode.id

postcode.it

postcode.in.ua

postcode.co.uk

postcode.digital

postcode.org

postcode.co.za

postcode.de

postcode.ie

postcode.io

postcode.life

postcode.my

postcode.one

postcode.info

Similar names

DNS History

13 records (5 active, 8 former)

○NSlocalhost2015-11-16 → 2016-12-05 · 5 obs

○ 2015-06-22 14:22:58
● 2015-11-16 19:16:12
● 2016-12-05 13:01:40
○ 2026-02-20 20:42:26
○ 2026-06-04 04:39:56

○NSns1.domeinmatch.nl2015-11-16 → 2016-12-05 · 5 obs

○ 2015-06-22 14:22:58
● 2015-11-16 19:16:12
● 2016-12-05 13:01:40
○ 2026-02-20 20:42:26
○ 2026-06-04 04:39:56

●NSns1.openprovider.nl2026-02-20 → 2026-06-04 · 3 obs

○ 2016-12-05 13:01:40
● 2026-02-20 20:42:26
● 2026-06-04 04:39:56

○NSns1.sedoparking.com2015-06-22 → 2015-06-22 · 3 obs

● 2015-06-22 14:22:58
○ 2015-11-16 19:16:12
○ 2026-06-04 04:39:56

○NSns2.domeinmatch.nl2015-11-16 → 2016-12-05 · 5 obs

○ 2015-06-22 14:22:58
● 2015-11-16 19:16:12
● 2016-12-05 13:01:40
○ 2026-02-20 20:42:26
○ 2026-06-04 04:39:56

●NSns2.openprovider.be2026-02-20 → 2026-06-04 · 3 obs

○ 2016-12-05 13:01:40
● 2026-02-20 20:42:26
● 2026-06-04 04:39:56

○NSns2.sedoparking.com2015-06-22 → 2015-06-22 · 3 obs

● 2015-06-22 14:22:58
○ 2015-11-16 19:16:12
○ 2026-06-04 04:39:56

●NSns3.openprovider.eu2026-02-20 → 2026-06-04 · 3 obs

○ 2016-12-05 13:01:40
● 2026-02-20 20:42:26
● 2026-06-04 04:39:56

○MXmail.nickstel.com2015-06-22 → 2015-06-22 · 3 obs

● 2015-06-22 14:22:58
○ 2015-11-16 19:16:12
○ 2026-06-04 04:39:56

●MXpostcode.nu2026-02-20 → 2026-06-04 · 6 obs

○ 2015-11-16 19:16:12
● 2026-02-20 20:42:26
● 2026-05-04 22:48:50
○ 2026-05-09 14:55:04
● 2026-05-10 00:25:24
● 2026-06-04 04:39:56

●A127.0.0.12026-02-20 → 2026-06-04 · 6 obs

○ 2016-12-05 13:01:40
● 2026-02-20 20:42:26
● 2026-05-04 22:48:50
○ 2026-05-09 14:55:04
● 2026-05-10 00:25:24
● 2026-06-04 04:39:56

○A31.7.4.1652015-11-16 → 2016-12-05 · 5 obs

○ 2015-06-22 14:22:58
● 2015-11-16 19:16:12
● 2016-12-05 13:01:40
○ 2026-02-20 20:42:26
○ 2026-06-04 04:39:56

○A72.52.4.1192015-06-22 → 2015-06-22 · 3 obs

● 2015-06-22 14:22:58
○ 2015-11-16 19:16:12
○ 2026-06-04 04:39:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nu	m.ns.nu, z.ns.nu, c.ns.nu, d.ns.nu...	-
postcode.nu	ns2.openprovider.be, ns1.openprovider.nl, ns3.openprovider.eu	-

✅ Authoritative Response

Server:162.159.27.96

NS records: ns2.openprovider.be, ns1.openprovider.nl, ns3.openprovider.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 3814ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`127.0.0.1`
NS	3	`ns2.openprovider.be, ns3.openprovider.eu...`
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 a subdomain of postcode.nu.

Mail Server Role

postcode.nu is listed as a mail server for itself.

IP Addresses

postcode.nu resolves to one IP address: 127.0.0.1.

die-destille.de, xn--egebudecheck-jcb.de, ns3.physi.cx and two other host names share IP numbers with postcode.nu.

Name Servers

postcode.nu is delegated to three name servers: ns2.openprovider.be, ns3.openprovider.eu and ns1.openprovider.nl.

The name servers of postcode.nu overlap at least partially with those of other domains — among them drift-utrecht.nl, noordvast.com, de-pers.nl and two more.

ns2.openprovider.be, ns3.openprovider.eu and ns1.openprovider.nl each resolve to two IP addresses: ns2.openprovider.be resolves to 162.159.27.96 and 2400:cb00:2049:1::a29f:1b60; ns3.openprovider.eu resolves to 162.159.48.89 and 2400:cb00:2049:1::a29f:3059; ns1.openprovider.nl resolves to 162.159.26.10 and 2400:cb00:2049:1::a29f:1a0a.

Mail Servers

Mail for postcode.nu is handled by one mail server — postcode.nu.

postcode.nu resolves to a single IP number: 127.0.0.1.