cool-concept.nl - robtex.com
cool-concept.nl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.187.111.117🇳🇱 Go-Trex185.187.108.0/22 Internet Solution Partner | ||||||
| PTR | xt-pp-01.xertog.com | ||||||
| NS | xt-ns-03.xertog.com ⭐ | ||||||
| A | 45.113.236.255🇳🇱 Go-Trex45.113.236.0/24 Internet Solution Partner | ||||||
| NS | xt-ns-02.xertog.com | ||||||
| A | 185.187.110.129🇳🇱 Go-Trex185.187.108.0/22 Internet Solution Partner | ||||||
| NS | xt-pp-01.xertog.com | ||||||
| A | 2a00:ef20:0:4::2🇳🇱 Go-Trex2a00:ef20::/29 GO TREX BV | ||||||
| PTR | xt-pp-01.xertog.com | ||||||
| A | 185.187.111.117🇳🇱 Go-Trex185.187.108.0/22 Internet Solution Partner | ||||||
| PTR | xt-pp-01.xertog.com | ||||||
| MX | mail.cool-concept.nl ⭐ | ||||||
| A | 185.187.111.117🇳🇱 Go-Trex185.187.108.0/22 Internet Solution Partner | ||||||
| PTR | xt-pp-01.xertog.com | ||||||
| TXT | v=spf1 +a +mx +a:xt-pp-03.xertog.com include:xertog.com -all | ||||||
| SOA | xt-ns-03.xertog.comvincent\@waterschoot.gmail.com 2026-04-08 #1 | ||||||
nl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.dns.nl ⭐ | ||||||
| NS | ns3.dns.nl | ||||||
| NS | ns4.dns.nl | ||||||
| TXT | nl zone update: 2026-05-11 10:00:02 +0000 (EPOCH 1778493602) | ||||||
| SOA | ns1.dns.nldns@sidn.nl 2026-05-11 #20 | ||||||
Subdomains
mail.cool-concept.nl |
Same first word
cool-concept.com |
cool-concept.de |
cool-concept.nl |
cool-concept.ch |
Similar names
DNS History
10 records (5 active, 5 former)
○NSdns1.qdc.nl2015-05-03 → 2017-02-10 · 4 obs
● 2017-02-10 05:24:40
○ 2026-04-25 07:48:56
○ 2026-05-11 11:03:10
○NSdns2.qdc.nl2015-05-03 → 2017-02-10 · 4 obs
● 2017-02-10 05:24:40
○ 2026-04-25 07:48:56
○ 2026-05-11 11:03:10
○NSdns3.qdc.nl2015-05-03 → 2017-02-10 · 4 obs
● 2017-02-10 05:24:40
○ 2026-04-25 07:48:56
○ 2026-05-11 11:03:10
●NSxt-ns-02.xertog.com2026-04-25 → 2026-05-11 · 3 obs
● 2026-04-25 07:48:56
● 2026-05-11 11:03:10
●NSxt-ns-03.xertog.com2026-04-25 → 2026-05-11 · 3 obs
● 2026-04-25 07:48:56
● 2026-05-11 11:03:10
●NSxt-pp-01.xertog.com2026-04-25 → 2026-05-11 · 3 obs
● 2026-04-25 07:48:56
● 2026-05-11 11:03:10
○MXfallback.qdc.nl2015-05-03 → 2017-02-10 · 4 obs
● 2017-02-10 05:24:40
○ 2026-04-25 07:48:56
○ 2026-05-11 11:03:10
●MXmail.cool-concept.nl2015-05-03 → 2026-05-11 · 2 obs
● 2026-05-11 11:03:10
●A185.187.111.1172026-04-25 → 2026-05-11 · 3 obs
● 2026-04-25 07:48:56
● 2026-05-11 11:03:10
○A91.221.150.2542015-05-03 → 2017-02-10 · 4 obs
● 2017-02-10 05:24:40
○ 2026-04-25 07:48:56
○ 2026-05-11 11:03:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nl | ns4.dns.nl, ns3.dns.nl, ns1.dns.nl | - |
| cool-concept.nl | xt-ns-02.xertog.com, xt-ns-03.xertog.com, xt-pp-01.xertog.com | - |
✅ Authoritative Response
Server:185.187.110.129
NS records: xt-ns-02.xertog.com, xt-ns-03.xertog.com, xt-pp-01.xertog.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cool-concept.nl (unsigned zone)
⏱️ Timing
Total: 449ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.187.111.117 |
| NS | 3 | xt-pp-01.xertog.com, xt-ns-02.xertog.com... |
| MX | 1 | mail.cool-concept.nl (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +a:xt-pp-03.xertog.com inc |
| SOA | 1 | xt-ns-03.xertog.com vincent\.waterschoot |
Analysis
Hierarchy
cool-concept.nl is the parent of mail.cool-concept.nl.
IP Addresses
cool-concept.nl resolves to a single IP: 185.187.111.117.
Other host names, for instance xt-pp-01.xertog.com, byteinfo.nl, mail.byteinfo.nl, nedops.com and rijschoollente.nl share IP numbers with cool-concept.nl.
Name Servers
cool-concept.nl delegates to three name servers: xt-ns-02.xertog.com, xt-ns-03.xertog.com and xt-pp-01.xertog.com.
cool-concept.nl shares some name servers with other domains, for example terrasana.nl, seamed.biz, philacollect.eu, go-trex.net and drb-it.nl.
These name servers are commonly used together with xt-ns-01.xertog.com and xt-pp-05.xertog.com.
Host names with two IP numbers: xt-pp-01.xertog.com points to 2a00:ef20:0:4::2 and 185.187.111.117.
Host names with one IP number: xt-ns-02.xertog.com points to 185.187.110.129 and xt-ns-03.xertog.com points to 45.113.236.255.
Mail Servers
cool-concept.nl is handled by a single mail server, mail.cool-concept.nl.
Host name mail.cool-concept.nl points to IP 185.187.111.117.