`tuicarefoundation.nl`

DNSSEC	⚠️ Not signed
A	2a00:18e0:5:2:7577:4e4d:413b:f507^{🇩🇪 Amazon2a00:18e0:5::/48 EC2 Prefix}
		PTR	`relay.mail-forwarder.io`
A	2a00:18e0:5:3:dfe2:c743:85aa:61bc^{🇩🇪 Amazon2a00:18e0:5::/48 EC2 Prefix}
A	5.22.145.16^{🇩🇪 Amazon5.22.145.0/24}
A	5.22.145.121^{🇩🇪 Amazon5.22.145.0/24}
NS	`ns01.brandshelter.com` ⭐
		A	2a04:2b00:14cc::15^{🇬🇧 RCODEZERO-ANYCAST-SEC1-TLD2a04:2b00:14cc::/48}
			PTR	`ns15.i.centralnic-dns.com`
		A	193.227.117.15^{🇩🇪 RCODEZERO-ANYCAST-SEC1-TLD193.227.117.0/24}
NS	`ns02.brandshelter.net`
		A	2a04:2b00:14dd::16^{🇬🇧 RCODEZERO-ANYCAST-SEC22a04:2b00:14dd::/48}
			PTR	`ns16.j.centralnic-dns.com`
		A	194.50.187.16^{🇩🇪 RCODEZERO-ANYCAST-SEC2194.50.187.0/24}
MX	`mail.tuicarefoundation.nl` ⭐
		A	195.128.186.11^{🇳🇱 TUI-AS195.128.186.0/24}
			PTR	`mail.tui.nl`
MX	`mailbackup1.tui.nl`⁽¹⁰⁾
		A	217.114.100.182^{🇳🇱 Equinix217.114.96.0/20 -Connect-NL-20010125}
			PTR	`fallback1.virtu.nl`
MX	`mailbackup2.tui.nl`⁽²⁰⁾
		A	213.129.68.101^{🇬🇧 TBSH213.129.64.0/20 The Bunker Secure Hosting Ltd - Allocation 1 Part 1}
SOA	`ns01.brandshelter.com`tech@brandshelter.com 2022-07-15 #0

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐
	NS	`ns3.dns.nl`
	NS	`ns4.dns.nl`
	TXT	`nl zone update: 2026-07-11 14:00:01 +0000 (EPOCH 1783778401)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-07-11 #28

Subdomains

mail.tuicarefoundation.nl

Same first word

tuicarefoundation.nl

tuicarefoundation.org

tuicarefoundation.com

DNS History

17 records (9 active, 8 former)

●NSns01.brandshelter.com2026-05-09 → 2026-07-11 · 3 obs

○ 2016-12-11 20:15:46
● 2026-05-09 11:34:04
● 2026-07-11 14:40:48

●NSns02.brandshelter.net2026-05-09 → 2026-07-11 · 3 obs

○ 2016-12-11 20:15:46
● 2026-05-09 11:34:04
● 2026-07-11 14:40:48

○NSns1.domaindiscount24.net2016-12-11 → 2016-12-11 · 4 obs

○ 2016-11-25 05:54:56
● 2016-12-11 20:15:46
○ 2026-05-09 11:34:04
○ 2026-07-11 14:40:48

○NSns1.tui.nl2015-04-21 → 2016-11-25 · 4 obs

● 2015-04-21 15:14:42
● 2016-11-25 05:54:56
○ 2016-12-11 20:15:46
○ 2026-07-11 14:40:48

○NSns2.domaindiscount24.net2016-12-11 → 2016-12-11 · 4 obs

○ 2016-11-25 05:54:56
● 2016-12-11 20:15:46
○ 2026-05-09 11:34:04
○ 2026-07-11 14:40:48

○NSns2.tui.nl2015-04-21 → 2016-11-25 · 4 obs

● 2015-04-21 15:14:42
● 2016-11-25 05:54:56
○ 2016-12-11 20:15:46
○ 2026-07-11 14:40:48

○NSns3.domaindiscount24.net2016-12-11 → 2016-12-11 · 4 obs

○ 2016-11-25 05:54:56
● 2016-12-11 20:15:46
○ 2026-05-09 11:34:04
○ 2026-07-11 14:40:48

●MXmail.tuicarefoundation.nl2015-04-21 → 2026-07-11 · 2 obs

● 2015-04-21 15:14:42
● 2026-07-11 14:40:48

●MXmailbackup1.tui.nl2015-04-21 → 2026-07-11 · 2 obs

● 2015-04-21 15:14:42
● 2026-07-11 14:40:48

●MXmailbackup2.tui.nl2015-04-21 → 2026-07-11 · 2 obs

● 2015-04-21 15:14:42
● 2026-07-11 14:40:48

○A195.128.186.382016-01-26 → 2016-05-02 · 5 obs

○ 2015-11-17 17:11:26
● 2016-01-26 15:47:46
● 2016-05-02 08:54:40
○ 2016-11-25 05:54:56
○ 2026-07-11 14:40:48

○A195.128.186.602015-04-21 → 2015-11-17 · 4 obs

● 2015-04-21 15:14:42
● 2015-11-17 17:11:26
○ 2016-01-26 15:47:46
○ 2026-07-11 14:40:48

●A2a00:18e0:5:2:7577:4e4d:413b:f5072026-05-09 → 2026-07-11 · 3 obs

○ 2016-12-11 20:15:46
● 2026-05-09 11:34:04
● 2026-07-11 14:40:48

●A2a00:18e0:5:3:dfe2:c743:85aa:61bc2026-05-09 → 2026-07-11 · 3 obs

○ 2016-12-11 20:15:46
● 2026-05-09 11:34:04
● 2026-07-11 14:40:48

●A5.22.145.1212026-05-09 → 2026-07-11 · 3 obs

○ 2016-12-11 20:15:46
● 2026-05-09 11:34:04
● 2026-07-11 14:40:48

●A5.22.145.162026-05-09 → 2026-07-11 · 3 obs

○ 2016-12-11 20:15:46
● 2026-05-09 11:34:04
● 2026-07-11 14:40:48

○A52.29.93.1662016-11-25 → 2016-12-11 · 5 obs

○ 2016-05-02 08:54:40
● 2016-11-25 05:54:56
● 2016-12-11 20:15:46
○ 2026-05-09 11:34:04
○ 2026-07-11 14:40:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
tuicarefoundation.nl	ns01.brandshelter.com, ns02.brandshelter.net	-

✅ Authoritative Response

Server:194.50.187.16

NS records: ns01.brandshelter.com, ns02.brandshelter.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tuicarefoundation.nl (unsigned zone)

⏱️ Timing

Total: 332ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`5.22.145.121, 5.22.145.16`
AAAA	2	`2a00:18e0:5:3:dfe2:c743:85aa:61bc, 2a00:18e0:5:2:7577:4e4d:413b:f507`
NS	2	`ns02.brandshelter.net, ns01.brandshelter.com`
MX	3	`mailbackup1.tui.nl (pri: 10), mail.tuicarefoundation.nl (pri: 5)...`
SOA	1	`ns01.brandshelter.com tech.brandshelter.`

Analysis

Hierarchy

tuicarefoundation.nl is a parent domain of mail.tuicarefoundation.nl.

IP Addresses

tuicarefoundation.nl has four IP addresses: 5.22.145.16, 5.22.145.121, 2a00:18e0:5:2:7577:4e4d:413b:f507 and 2a00:18e0:5:3:dfe2:c743:85aa:61bc.

acp-it.eu.com, aspermuehle.org, litecode.com plus two other host names have IP numbers in common with tuicarefoundation.nl.

Name Servers

tuicarefoundation.nl has two authoritative name servers — ns01.brandshelter.com and ns02.brandshelter.net.

The name server configuration of tuicarefoundation.nl is shared with other domains, for instance fugro.com, tui-think-tank.com, zalando.com.ng and two others.

tuicarefoundation.nl shares at least some of its name servers with other domains, including dp-eps.com, fcdeutschepost.de, postident-online.com and two others.

These name servers are frequently seen alongside ns.deutschepost.de, ppd00021.deutschepost.de, dns1.ipmanagerinc.net and 7 other name servers.

Both ns01.brandshelter.com and ns02.brandshelter.net have two IP addresses each. ns01.brandshelter.com resolves to 193.227.117.15 and 2a04:2b00:14cc::15; ns02.brandshelter.net resolves to 194.50.187.16 and 2a04:2b00:14dd::16.

Mail Servers

tuicarefoundation.nl is handled by three mail servers: mailbackup1.tui.nl, mailbackup2.tui.nl and mail.tuicarefoundation.nl.

At least some of the mail servers used by tuicarefoundation.nl are shared with other domains: jetairfly.be, arkefly.com, vrijuit.nl and two others among them.

These mail servers often appear in conjunction with the mail servers mail.tui.nl, mail.arkefly.com, mail.vrijuit.nl and mail.neckermann.nl.

Each of the three hostnames points to exactly one IP address: mailbackup1.tui.nl points to 217.114.100.182, mailbackup2.tui.nl points to 213.129.68.101 and mail.tuicarefoundation.nl points to 195.128.186.11.

tuicarefoundation.nl - robtex.com