concreet.nu - robtex.com
concreet.nu
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:5ade4a22-8a9d-46c3-9950-4cd630c07fb2 | ||||||
| TXT | NU zone update: 2026-04-12 01:40:14 +0000 (EPOCH 1775958014) (auto) | ||||||
| SOA | catcher-in-the-rye.nic.nuhostmaster@nic.nu serial=1775958072 | ||||||
Same first word
Similar names
DNS History
11 records (10 active, 1 former)
●NSintention.ns01.nl2026-04-09 → 2026-04-12 · 3 obs
● 2026-04-09 08:11:04
● 2026-04-12 01:59:40
●NSintention.ns02.nl2026-04-09 → 2026-04-12 · 3 obs
● 2026-04-09 08:11:04
● 2026-04-12 01:59:40
●NSintention.ns03.nl2026-04-09 → 2026-04-12 · 3 obs
● 2026-04-09 08:11:04
● 2026-04-12 01:59:40
●NSintention.ns04.org2026-04-09 → 2026-04-12 · 3 obs
● 2026-04-09 08:11:04
● 2026-04-12 01:59:40
●NSns01.intention.nl2015-08-02 → 2026-04-12 · 2 obs
● 2026-04-12 01:59:40
●NSns02.intention.nl2015-08-02 → 2026-04-12 · 2 obs
● 2026-04-12 01:59:40
●NSns03.intention.nl2015-08-02 → 2026-04-12 · 2 obs
● 2026-04-12 01:59:40
○MXmail.concreet.nu2015-08-02 → 2017-03-21 · 4 obs
● 2017-03-21 09:32:18
○ 2026-04-09 08:11:04
○ 2026-04-12 01:59:40
●MXmail.doorstuurserver.nl2026-04-09 → 2026-04-12 · 3 obs
● 2026-04-09 08:11:04
● 2026-04-12 01:59:40
●A2001:678:be4:8::182026-04-09 → 2026-04-12 · 3 obs
● 2026-04-09 08:11:04
● 2026-04-12 01:59:40
●A87.239.8.182015-08-02 → 2026-04-12 · 2 obs
● 2026-04-12 01:59:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nu | m.ns.nu, z.ns.nu, c.ns.nu, d.ns.nu... | - |
| concreet.nu | intention.ns01.nl, intention.ns03.nl, intention.ns02.nl, intention.ns04.org | - |
✅ Authoritative Response
Server:198.58.97.69
NS records: intention.ns01.nl, intention.ns03.nl, intention.ns02.nl, intention.ns04.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for concreet.nu (unsigned zone)
⏱️ Timing
Total: 1322ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 87.239.8.18 |
| AAAA | 1 | 2001:678:be4:8::18 |
| NS | 3 | ns03.intention.nl, ns01.intention.nl... |
| MX | 1 | mail.doorstuurserver.nl (pri: 10) |
| SOA | 1 | intention.ns01.nl hostmaster.intention.n |
Analysis
IP Addresses
concreet.nu points to two IP numbers: 2001:678:be4:8::18 and 87.239.8.18.
Other host names such as bioseal.nl, cronacleexpress.fr, lesemancarcare.com, polysport.biz and groomingschool.eu share IPs with concreet.nu.
Name Servers
concreet.nu is delegated to seven name servers: ns01.intention.nl, ns02.intention.nl, ns03.intention.nl, intention.ns01.nl, intention.ns02.nl, intention.ns03.nl and intention.ns04.org.
concreet.nu at least partially shares name servers with other domains, for instance recair.be, rdegraaf.com, miladsaneie.com, vaarles.nl and limo.nl.
These name servers are commonly used together with ns01.sevenmiles.nl, ns02.sevenmiles.nl and ns03.sevenmiles.nl.
Host names with two IPs:
ns01.intention.nl points to: 2001:678:be4:8::2 and 87.239.8.2
ns02.intention.nl points to: 2001:678:be4:9::3 and 87.239.9.3
intention.ns01.nl points to: 2001:678:be4:8::2 and 87.239.8.2
intention.ns02.nl points to: 2001:678:be4:9::3 and 87.239.9.3
intention.ns03.nl points to: 2a04:3544:1000:1510:8cc4:acff:fe62:1dad and 85.9.219.98
intention.ns04.org points to: 2600:3c00::f03c:91ff:feae:2d59 and 198.58.97.69
Names pointing to 2001:678:be4:8::2: ns01.intention.nl and intention.ns01.nl
Names pointing to 87.239.8.2: ns01.intention.nl and intention.ns01.nl
Names pointing to 2001:678:be4:9::3: ns02.intention.nl and intention.ns02.nl
Names pointing to 87.239.9.3: ns02.intention.nl and intention.ns02.nl
Mail Servers
concreet.nu is handled by a single mail server, mail.doorstuurserver.nl.
The mail server setup for concreet.nu matches that of other domains, for instance vaarles.nl, vaya-stanton.com, sanflex.nl, dutchhotel.net and filter-uvc.nl.
concreet.nu shares at least partially some mail servers with other domains, including duynhoven.nl, nlx.eu, limburgs-landschap.com, fmj.eu and ovenspareparts.com.
mail.doorstuurserver.nl points to two IPs: 2001:678:be4:8::19 and 87.239.8.19.