`testbase20.nl`

DNSSEC	⚠️ Not signed
A	178.21.112.80^{🇳🇱 COMPUKOS-AS178.21.112.0/21 NL-DIRECTVPS}
		PTR	`s11.buildnet.nl`
NS	`s11d.buildnet.eu` ⭐ ⚠️ Not in parent delegation
		A	178.21.112.80^{🇳🇱 COMPUKOS-AS178.21.112.0/21 NL-DIRECTVPS}
			PTR	`s11.buildnet.nl`
NS	`s11d.buildnet.nl` ⚠️ Not in zone NS records
		A	178.21.112.80^{🇳🇱 COMPUKOS-AS178.21.112.0/21 NL-DIRECTVPS}
			PTR	`s11.buildnet.nl`
NS	`s11d2.buildnet.eu` ⚠️ Not in parent delegation
		A	178.21.112.80^{🇳🇱 COMPUKOS-AS178.21.112.0/21 NL-DIRECTVPS}
			PTR	`s11.buildnet.nl`
NS	`s11d2.buildnet.nl` ⚠️ Not in zone NS records
		A	141.105.121.210^{🇳🇱 COMPUKOS-AS141.105.120.0/22 NL-DIRECTVPS-2}
			PTR	`s11.buildnet.nl`
MX	`testbase20.nl` ⭐
		A	178.21.112.80^{🇳🇱 COMPUKOS-AS178.21.112.0/21 NL-DIRECTVPS}
			PTR	`s11.buildnet.nl`
TXT	`v=spf1 mx a ip4:109.237.212.235 ~all`
SOA	`s11d2.buildnet.eu`sander\@duivenvoorden.buildnet.nl 2023-02-16 #14

`nl`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.dns.nl` ⭐ 🔒
	NS	`ns3.dns.nl` 🔒
	NS	`ns4.dns.nl` 🔒
	TXT	`nl zone update: 2026-03-15 06:00:02 +0000 (EPOCH 1773554402)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-03-15 #12

MX for

testbase20.nl

Same first word

testbase20.eu

testbase20.nl

DNS History

11 records (6 active, 5 former)

○NSns1.buildnet.eu2015-05-17 → 2020-02-14 · 4 obs

● 2015-05-17 17:33:34
● 2020-02-14 01:31:46
○ 2026-02-16 14:39:40
○ 2026-03-23 10:01:56

○NSns2.buildnet.eu2015-05-17 → 2020-02-14 · 4 obs

● 2015-05-17 17:33:34
● 2020-02-14 01:31:46
○ 2026-02-16 14:39:40
○ 2026-03-23 10:01:56

●NSs11d.buildnet.eu2026-02-16 → 2026-03-23 · 3 obs

○ 2020-02-14 01:31:46
● 2026-02-16 14:39:40
● 2026-03-23 10:01:56

●NSs11d.buildnet.nl2026-02-16 → 2026-03-23 · 3 obs

○ 2020-02-14 01:31:46
● 2026-02-16 14:39:40
● 2026-03-23 10:01:56

●NSs11d2.buildnet.eu2026-02-16 → 2026-03-23 · 3 obs

○ 2020-02-14 01:31:46
● 2026-02-16 14:39:40
● 2026-03-23 10:01:56

●NSs11d2.buildnet.nl2026-02-16 → 2026-03-23 · 3 obs

○ 2020-02-14 01:31:46
● 2026-02-16 14:39:40
● 2026-03-23 10:01:56

○MXmx10.spamshield.eu2015-05-17 → 2020-02-14 · 4 obs

● 2015-05-17 17:33:34
● 2020-02-14 01:31:46
○ 2026-02-16 14:39:40
○ 2026-03-23 10:01:56

○MXmx20.spamshield.eu2015-05-17 → 2020-02-14 · 4 obs

● 2015-05-17 17:33:34
● 2020-02-14 01:31:46
○ 2026-02-16 14:39:40
○ 2026-03-23 10:01:56

●MXtestbase20.nl2026-02-16 → 2026-03-23 · 3 obs

○ 2020-02-14 01:31:46
● 2026-02-16 14:39:40
● 2026-03-23 10:01:56

○A109.237.221.202015-05-17 → 2020-02-14 · 4 obs

● 2015-05-17 17:33:34
● 2020-02-14 01:31:46
○ 2026-02-16 14:39:40
○ 2026-03-23 10:01:56

●A178.21.112.802026-02-16 → 2026-03-23 · 3 obs

○ 2020-02-14 01:31:46
● 2026-02-16 14:39:40
● 2026-03-23 10:01:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns3.dns.nl, ns1.dns.nl, ns4.dns.nl	-
testbase20.nl	s11d.buildnet.nl, s11d2.buildnet.nl	-

✅ Authoritative Response

Server:141.105.121.210

NS records: s11d.buildnet.nl, s11d2.buildnet.nl

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for testbase20.nl (unsigned zone)

⏱️ Timing

Total: 464ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`178.21.112.80`
NS	2	`s11d.buildnet.eu, s11d2.buildnet.eu`
MX	1	`testbase20.nl (pri: 10)`
TXT	1	`v=spf1 mx a ip4:109.237.212.235 ~all`
SOA	1	`s11d2.buildnet.eu sander\.duivenvoorden.`

Analysis

Mail Server Role

For testbase20.nl, the mail server is testbase20.nl.

IP Addresses

testbase20.nl resolves to one IP number: 178.21.112.80.

other host names including s11d2.buildnet.eu, mail.earsurgery.eu, tracheostoma.nl, mail.motorhotel.net and mail.backstagehotel.biz share IP numbers with testbase20.nl.

Name Servers

testbase20.nl is delegated to four name servers: s11d2.buildnet.eu, s11d.buildnet.eu, s11d2.buildnet.nl and s11d.buildnet.nl.

testbase20.nl at least partially shares name servers with other domains, for instance hotelbackstage.eu, o-g.nl, buildnet.info, testbase8.nl and synergia.nl.