knowledgeworks.nl - dns.ninja
knowledgeworks.nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 81.4.66.122🇳🇱 AS-TBNLTN81.4.64.0/20 ProServe Network | ||||||
| NS | ns1.argewebhosting.eu ⭐ | ||||||
| A | 2a05:1500:702:0:1c00:eff:fe00:ce🇳🇱 CLDIN-NL2a05:1500::/29 | ||||||
| PTR | ns1.argewebhosting.eu | ||||||
| A | 31.25.98.210🇳🇱 CLDIN-NL31.25.96.0/21 PCextreme B.V. | ||||||
| PTR | ns1.argewebhosting.eu | ||||||
| NS | ns2.argewebhosting.com | ||||||
| A | 2a05:1500:702:0:1c00:13ff:fe00:a5🇳🇱 CLDIN-NL2a05:1500::/29 | ||||||
| PTR | ns2.argewebhosting.com | ||||||
| A | 31.25.98.169🇳🇱 CLDIN-NL31.25.96.0/21 PCextreme B.V. | ||||||
| NS | ns3.argewebhosting.nl | ||||||
| A | 2a05:1500:600:7:1c00:55ff:fe00:f1a🇳🇱 CLDIN-NL2a05:1500:600::/40 PCextreme B.V. - Amsterdam (ams02) | ||||||
| PTR | ns3.argewebhosting.nl | ||||||
| A | 92.63.168.137🇳🇱 CLDIN-NL92.63.168.0/21 PCextreme IPv4 Route | ||||||
| PTR | ns3.argewebhosting.nl | ||||||
| MX | mail.knowledgeworks.nl ⭐ | ||||||
| A | 81.4.66.122🇳🇱 AS-TBNLTN81.4.64.0/20 ProServe Network | ||||||
| SOA | ns1.argewebhosting.euhostmaster@argeweb.nl 2019-02-05 #1 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-08-10 18:00:01 +0000 (EPOCH 1786384801) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-08-10 #35 | ||||||
Subdomains
mail.knowledgeworks.nl |
Same first word
DNS History
8 records (5 active, 3 former)
●NSns1.argewebhosting.eu2020-02-25 → 2026-08-10 · 3 obs
● 2020-02-25 07:02:20
● 2026-08-10 19:10:10
○NSns1.widexs.nl2015-08-10 → 2017-03-19 · 4 obs
● 2017-03-19 14:03:20
○ 2020-02-25 07:02:20
○ 2026-08-10 19:10:10
●NSns2.argewebhosting.com2020-02-25 → 2026-08-10 · 3 obs
● 2020-02-25 07:02:20
● 2026-08-10 19:10:10
○NSns2.widexs.net2015-08-10 → 2017-03-19 · 4 obs
● 2017-03-19 14:03:20
○ 2020-02-25 07:02:20
○ 2026-08-10 19:10:10
●NSns3.argewebhosting.nl2020-02-25 → 2026-08-10 · 3 obs
● 2020-02-25 07:02:20
● 2026-08-10 19:10:10
○NSns3.widexs.nl2015-08-10 → 2017-03-19 · 4 obs
● 2017-03-19 14:03:20
○ 2020-02-25 07:02:20
○ 2026-08-10 19:10:10
●MXmail.knowledgeworks.nl2015-08-10 → 2026-08-10 · 2 obs
● 2026-08-10 19:10:10
●A81.4.66.1222015-08-10 → 2026-08-10 · 2 obs
● 2026-08-10 19:10:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns4.dns.nl, ns1.dns.nl, ns3.dns.nl | - |
| knowledgeworks.nl | ns3.argewebhosting.nl, ns2.argewebhosting.com, ns1.argewebhosting.eu | 2 records |
✅ Authoritative Response
Server:31.25.98.210
NS records: ns3.argewebhosting.nl, ns2.argewebhosting.com, ns1.argewebhosting.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 2829ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.4.66.122 |
| NS | 3 | ns1.argewebhosting.eu, ns3.argewebhosting.nl... |
| MX | 1 | mail.knowledgeworks.nl (pri: 10) |
| SOA | 1 | ns1.argewebhosting.eu hostmaster.argeweb |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns3.argewebhosting.nl, ns3.argewebhosting.nl)
Analysis
Hierarchy
knowledgeworks.nl serves as the parent of mail.knowledgeworks.nl.
IP Addresses
knowledgeworks.nl resolves to just one IP address, 81.4.66.122.
pop.aandeelhandel.nl, mail.discuss.nl, mail.knowledgeworks.nl and aandeelhandel.nl are examples of host names that share IP numbers with knowledgeworks.nl.
Name Servers
knowledgeworks.nl carries NS records delegating to ns2.argewebhosting.com, ns1.argewebhosting.eu and ns3.argewebhosting.nl.
knowledgeworks.nl has at least partial name server overlap with other domains, such as vinkverf.nl, (0x73686974)humor.com, komisy.online and two others.
ns2.argewebhosting.com, ns1.argewebhosting.eu and ns3.argewebhosting.nl are three hostnames that each resolve to a pair of IP addresses: ns2.argewebhosting.com to 31.25.98.169 and 2a05:1500:702:0:1c00:13ff:fe00:a5, ns1.argewebhosting.eu to 31.25.98.210 and 2a05:1500:702:0:1c00:eff:fe00:ce, and ns3.argewebhosting.nl to 92.63.168.137 and 2a05:1500:600:7:1c00:55ff:fe00:f1a.
Mail Servers
The sole mail server for knowledgeworks.nl is mail.knowledgeworks.nl.
mail.knowledgeworks.nl carries a single IP number, which is 81.4.66.122.