`theproffessional.nl`

DNSSEC	🔒 Signed (DS record present)
NS	`ns11.kpn.net` ⭐
		A	2a02:a47f:ac:1::1153^{🇳🇱 KPN2a02:a400::/25 B.V.}
			PTR	`ns11.kpn.net`
			PTR	`ns1.widexs.net`
			PTR	`ns01.is.nl`
			PTR	`ns1.widexs.nl`
		A	213.75.63.33^{🇳🇱 PT213.75.0.0/17 PIADDR}
			PTR	`ns11.kpn.net`
			PTR	`ns1.widexs.net`
			PTR	`ns01.is.nl`
			PTR	`ns1.widexs.nl`
NS	`ns1.kpn.net`
		A	2a02:a47f:ac:1::153^{🇳🇱 KPN2a02:a400::/25 B.V.}
			PTR	`ns1.kpn.net`
		A	194.151.228.10^{🇩🇪 KPN194.151.224.0/19 B.V.}
			PTR	`ns1.kpn.net`
SOA	`ns1.kpn.net`zonemaster@kpn.com 2026-03-26 #1

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-03-26 16:30:02 +0000 (EPOCH 1774542602)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-03-26 #33

Same first word

theproffessional.nl

DNS History

9 records (2 active, 7 former)

○NSns.xs4all.nl2015-06-23 → 2016-12-07 · 4 obs

● 2015-06-23 10:55:10
● 2016-12-07 03:45:22
○ 2026-02-24 03:08:18
○ 2026-03-26 17:18:28

●NSns1.kpn.net2026-02-24 → 2026-03-26 · 3 obs

○ 2016-12-07 03:45:22
● 2026-02-24 03:08:18
● 2026-03-26 17:18:28

●NSns11.kpn.net2026-02-24 → 2026-03-26 · 3 obs

○ 2016-12-07 03:45:22
● 2026-02-24 03:08:18
● 2026-03-26 17:18:28

○NSns2.xs4all.nl2015-06-23 → 2016-12-07 · 4 obs

● 2015-06-23 10:55:10
● 2016-12-07 03:45:22
○ 2026-02-24 03:08:18
○ 2026-03-26 17:18:28

○MXmx1.xs4all.nl2015-06-23 → 2016-12-07 · 4 obs

● 2015-06-23 10:55:10
● 2016-12-07 03:45:22
○ 2026-02-24 03:08:18
○ 2026-03-26 17:18:28

○MXmx2.xs4all.nl2015-06-23 → 2016-12-07 · 4 obs

● 2015-06-23 10:55:10
● 2016-12-07 03:45:22
○ 2026-02-24 03:08:18
○ 2026-03-26 17:18:28

○MXmx3.xs4all.nl2015-06-23 → 2016-12-07 · 4 obs

● 2015-06-23 10:55:10
● 2016-12-07 03:45:22
○ 2026-02-24 03:08:18
○ 2026-03-26 17:18:28

○MXmx4.xs4all.nl2015-06-23 → 2016-12-07 · 4 obs

● 2015-06-23 10:55:10
● 2016-12-07 03:45:22
○ 2026-02-24 03:08:18
○ 2026-03-26 17:18:28

○A194.109.145.472015-06-23 → 2016-12-07 · 4 obs

● 2015-06-23 10:55:10
● 2016-12-07 03:45:22
○ 2026-02-24 03:08:18
○ 2026-03-26 17:18:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns4.dns.nl, ns3.dns.nl, ns1.dns.nl	-
theproffessional.nl	ns1.kpn.net, ns11.kpn.net	-

✅ Authoritative Response

Server:194.151.228.10

NS records: ns1.kpn.net, ns11.kpn.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 704ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns11.kpn.net, ns1.kpn.net`
SOA	1	`ns1.kpn.net zonemaster.kpn.com`

Analysis

Name Servers

theproffessional.nl's delegation is to two name servers ns11.kpn.net and ns1.kpn.net.

theproffessional.nl shares the same name server configuration as other domains, such as orteltelecom.biz, sah.nl, jobcompany.nl, magema.eu and pwn.nl.

theproffessional.nl shares name servers with other domains at least partially, for example 250.136.82.in-addr.arpa.

Host names with two IP numbers: ns11.kpn.net points to 2a02:a47f:ac:1::1153 and 213.75.63.33; ns1.kpn.net points to 2a02:a47f:ac:1::153 and 194.151.228.10

theproffessional.nl - robtex.com