hetwkz.nl - robtex.com
hetwkz.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 132.220.206.226🇬🇧 Microsoft132.220.0.0/16 | ||||||
| NS | dex1001.umcutrecht.nl ⭐ | ||||||
| A | 143.121.237.53🇳🇱 SURFNET-NL143.121.0.0/16 netname: AZUTRECHT Academic Hospital Utrecht Utrecht | ||||||
| PTR | dex1001.umcutrecht.nl | ||||||
| PTR | ns4.umcutrecht.nl | ||||||
| NS | dex2001.umcutrecht.nl | ||||||
| A | 143.121.237.186🇳🇱 SURFNET-NL143.121.0.0/16 netname: AZUTRECHT Academic Hospital Utrecht Utrecht | ||||||
| PTR | dex2001.umcutrecht.nl | ||||||
| NS | ns1.surfnet.nl | ||||||
| A | 2001:610:1:800a:192:87:106:101🇳🇱 SURFNET-NL2001:610::/29 SURFnet IPv6 block | ||||||
| PTR | ns1.surfnet.nl | ||||||
| A | 192.87.106.101🇳🇱 SURFNET-NL192.87.0.0/16 SURFnet CIDR Block IV | ||||||
| PTR | ns1.surfnet.nl | ||||||
| MX | mailgw1.umcutrecht.nl ⭐ | ||||||
| MX | mailgw2.umcutrecht.nl ⭐ | ||||||
| TXT | v=spf1 ip4:143.121.0.0/16 -all | ||||||
| SOA | dex1001.umcutrecht.nlhelpdesk@umcutrecht.nl serial=14808 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-05-15 12:30:02 +0000 (EPOCH 1778848202) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-05-15 #25 | ||||||
rank #8927 in the tld
WOT: SAFE (61/100)
📈 Tranco rank: #722,418
Subdomains
Same first word
hetwkz.nl |
DNS History
7 records (6 active, 1 former)
●NSdex1001.umcutrecht.nl2015-07-18 → 2026-05-15 · 2 obs
● 2026-05-15 13:08:42
●NSdex2001.umcutrecht.nl2015-07-18 → 2026-05-15 · 2 obs
● 2026-05-15 13:08:42
●NSns1.surfnet.nl2026-02-18 → 2026-05-15 · 3 obs
● 2026-02-18 20:03:46
● 2026-05-15 13:08:42
●MXmailgw1.umcutrecht.nl2015-07-18 → 2026-05-15 · 2 obs
● 2026-05-15 13:08:42
●MXmailgw2.umcutrecht.nl2015-07-18 → 2026-05-15 · 2 obs
● 2026-05-15 13:08:42
●A132.220.206.2262026-02-18 → 2026-05-15 · 3 obs
● 2026-02-18 20:03:46
● 2026-05-15 13:08:42
○A143.121.238.192015-07-18 → 2016-12-10 · 4 obs
● 2016-12-10 09:39:04
○ 2026-02-18 20:03:46
○ 2026-05-15 13:08:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns3.dns.nl, ns4.dns.nl, ns1.dns.nl | - |
| hetwkz.nl | dex1001.umcutrecht.nl, dex2001.umcutrecht.nl, ns1.surfnet.nl | 4 records |
✅ Authoritative Response
Server:143.121.237.186
NS records: dex1001.umcutrecht.nl, dex2001.umcutrecht.nl, ns1.surfnet.nl
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 3341ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 132.220.206.226 |
| NS | 3 | dex2001.umcutrecht.nl, ns1.surfnet.nl... |
| MX | 2 | mailgw1.umcutrecht.nl (pri: 10), mailgw2.umcutrecht.nl (pri: 10) |
| TXT | 1 | v=spf1 ip4:143.121.0.0/16 -all |
| SOA | 1 | dex1001.umcutrecht.nl helpdesk.umcutrech |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (dex2001.umcutrecht.nl, dex1001.umcutrecht.nl, ns1.surfnet.nl...)
Analysis
Hierarchy
hetwkz.nl is a parent of rsv-pn.hetwkz.nl and www.hetwkz.nl.
IP Addresses
hetwkz.nl resolves to one IP number: 132.220.206.226.
Other host names, for instance testpreview.dna-poli.nl, dnapoli.nl, dna-poli.nl, onboarden.umcutrecht.nl and umcutrecht.nl share IP numbers with hetwkz.nl.
Name Servers
hetwkz.nl is delegated to three name servers: ns1.surfnet.nl, dex1001.umcutrecht.nl and dex2001.umcutrecht.nl.
hetwkz.nl at least partially shares name servers with other domains, including cologne.mba, voedingsonderzoek.nl, samenmeten.nl, wageningenur.nl and walkingwithparkinson.com.
These name servers are commonly used with ns1.zurich.surf.net, ns2.surfnet.nl, ns3.surfnet.nl, ns1.ssc-campus.nl, ns2.ssc-campus.nl, sscc-ddign-a01p.ddi.ssc-campus.nl, ns-ext-01.wur.nl, gridma-info.net.umcutrecht.nl, ns6.eur.nl and umcdns03.azn.nl.
Host names with two IP numbers:
ns1.surfnet.nl points to: 2001:610:1:800a:192:87:106:101 and 192.87.106.101.
Host names with one IP number:
dex1001.umcutrecht.nl points to: 143.121.237.53.
dex2001.umcutrecht.nl points to: 143.121.237.186.
Mail Servers
hetwkz.nl is served by two mail servers mailgw1.umcutrecht.nl and mailgw2.umcutrecht.nl.
hetwkz.nl shares the same mail server setup as other domains, for instance centrumzorginnovatieutrecht.com, mbilifesciences.com, centerforhealthcareinnovation.eu, utrechtcenterforhealtcareinnovation.com and mijnumc.nl.