`thinkactive.nl`

DNSSEC	⚠️ Not signed
A	128.251.155.72^{🇺🇸 Microsoft128.251.0.0/16}
NS	`ns1.think.nl` ⭐
		A	128.251.155.72^{🇺🇸 Microsoft128.251.0.0/16}
NS	`ns2.think.nl`
		A	213.125.48.74^{🇳🇱 TNF-AS213.125.0.0/17 VODAFONE_ZIGGO}
			PTR	`ip74.thinknet.nl`
MX	`thinkactive-nl.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::8^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db5pr02cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::c^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00304.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::d^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as9pr05cu01305.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::f^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00307.inbound.protection.outlook.com`
		A	52.101.68.10^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbbpr03cu00102.inbound.protection.outlook.com`
		A	52.101.68.15^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db6pr03cu00107.inbound.protection.outlook.com`
		A	52.101.68.29^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-dbapr03cu00105.inbound.protection.outlook.com`
		A	52.101.73.153^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00401.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
TXT	`MS=ms12251603`
SOA	`ns1.think.nl`postmaster@thinkactive.nl 2025-04-29 #1

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-07-19 10:00:02 +0000 (EPOCH 1784455202)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-07-19 #20

Same first word

thinkactive.de

thinkactive.com

thinkactive.co.uk

thinkactive.nl

thinkactive.net

Similar names

activethink.net

DNS History

13 records (4 active, 9 former)

●NSns1.think.nl2008-03-12 → 2026-07-19 · 2 obs

● 2008-03-12 12:07:40
● 2026-07-19 10:50:50

●NSns2.think.nl2008-03-12 → 2026-07-19 · 2 obs

● 2008-03-12 12:07:40
● 2026-07-19 10:50:50

○MXedge01.think.nl2015-12-28 → 2017-06-26 · 5 obs

○ 2015-10-20 06:23:48
● 2015-12-28 01:06:14
● 2017-06-26 04:29:58
○ 2026-05-28 08:52:48
○ 2026-07-19 10:50:50

○MXedge02.think.nl2016-09-24 → 2017-06-26 · 5 obs

○ 2016-04-11 22:11:54
● 2016-09-24 13:40:30
● 2017-06-26 04:29:58
○ 2026-05-28 08:52:48
○ 2026-07-19 10:50:50

○MXexchange.think.nl2015-12-28 → 2016-04-11 · 5 obs

○ 2015-10-20 06:23:48
● 2015-12-28 01:06:14
● 2016-04-11 22:11:54
○ 2016-09-24 13:40:30
○ 2026-07-19 10:50:50

○MXfallback.think.nl2015-05-30 → 2015-05-30 · 4 obs

○ 2008-03-12 12:07:40
● 2015-05-30 11:45:02
○ 2015-10-20 06:23:48
○ 2026-07-19 10:50:50

○MXmail.think.nl2008-03-12 → 2015-10-20 · 4 obs

● 2008-03-12 12:07:40
● 2015-10-20 06:23:48
○ 2015-12-28 01:06:14
○ 2026-07-19 10:50:50

○MXmail.thinkactive.nl2008-03-12 → 2008-03-12 · 3 obs

● 2008-03-12 12:07:40
○ 2015-05-30 11:45:02
○ 2026-07-19 10:50:50

○MXowa.think.nl2015-10-20 → 2015-10-20 · 4 obs

○ 2015-05-30 11:45:02
● 2015-10-20 06:23:48
○ 2015-12-28 01:06:14
○ 2026-07-19 10:50:50

●MXthinkactive-nl.mail.protection.outlook.com2026-05-28 → 2026-07-19 · 3 obs

○ 2017-06-26 04:29:58
● 2026-05-28 08:52:48
● 2026-07-19 10:50:50

●A128.251.155.722026-05-28 → 2026-07-19 · 3 obs

○ 2015-12-28 01:06:14
● 2026-05-28 08:52:48
● 2026-07-19 10:50:50

○A213.125.48.772015-05-30 → 2015-10-20 · 5 obs

○ 2008-03-12 12:07:40
● 2015-05-30 11:45:02
● 2015-10-20 06:23:48
○ 2015-12-28 01:06:14
○ 2026-07-19 10:50:50

○A217.119.6.442008-03-12 → 2008-03-12 · 3 obs

● 2008-03-12 12:07:40
○ 2015-05-30 11:45:02
○ 2026-07-19 10:50:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
thinkactive.nl	ns1.think.nl, ns2.think.nl	2 records

✅ Authoritative Response

Server:128.251.155.72

NS records: ns1.think.nl, ns2.think.nl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thinkactive.nl (unsigned zone)

⏱️ Timing

Total: 315ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`128.251.155.72`
NS	2	`ns2.think.nl, ns1.think.nl`
MX	1	`thinkactive-nl.mail.protection.outlook.c`
TXT	2	`MS=ms12251603, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns1.think.nl postmaster.thinkactive.nl`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.think.nl, ns2.think.nl)

Analysis

IP Addresses

thinkactive.nl points to a single IP number: 128.251.155.72.

Additional host names — think.nl, ns1.think.nl, connollyleather.nl and two others — share IP numbers with thinkactive.nl.

Name Servers

thinkactive.nl is served by two delegated name servers, ns1.think.nl and ns2.think.nl.

thinkactive.nl shares its name server setup with other domains, including classiccarleather.nl, lado.nl, think.nl and two others.

Each of ns1.think.nl and ns2.think.nl has one IP address: ns1.think.nl uses 128.251.155.72 and ns2.think.nl uses 213.125.48.74.

Mail Servers

thinkactive.nl has one mail server: thinkactive-nl.mail.protection.outlook.com.

thinkactive-nl.mail.protection.outlook.com points to 8 IP numbers: 52.101.68.10, 52.101.68.15, 52.101.68.29 and 5 other.

thinkactive.nl - robtex.com

thinkactive.nl

nl