`keesingreferencesystems.nl`

DNSSEC	⚠️ Not signed
A	91.198.170.115^{🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1}
		PTR	`plesk15.esmero.nl`
NS	`ns1.esmero.nl` ⭐
		A	2a0b:c140:aa::10^{🇳🇱 Esmero2a0b:c140::/32 ESMERO-BLOCKV6-1}
			PTR	`ns1.esmero.nl`
		A	91.198.170.10^{🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1}
			PTR	`ns1.esmero.nl`
NS	`ns2.esmero.nl`
		A	2a01:7c8:bb01:147::1^{🇳🇱 TRANSIP-AS2a01:7c8::/32 TransIP B.V. Amsterdam IPv6 network}
			PTR	`ns2.esmero.nl`
		A	31.14.96.246^{🇳🇱 TRANSIP-AS31.14.96.0/22 TransIP BV Amsterdam, The Netherlands}
			PTR	`ns2.esmero.nl`
MX	`mxs10.esmero.nl` ⭐
		A	2a0b:c140:aa::31^{🇳🇱 Esmero2a0b:c140::/32 ESMERO-BLOCKV6-1}
			PTR	`mailscan1.esmero.nl`
		A	2a0b:c140:aa::33^{🇳🇱 Esmero2a0b:c140::/32 ESMERO-BLOCKV6-1}
			PTR	`mailscan5.esmero.nl`
		A	51.38.124.81^{🇫🇷 OVH51.38.0.0/16}
			PTR	`mailscan4.esmero.nl`
		A	91.198.170.31^{🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1}
			PTR	`mailscan1.esmero.nl`
		A	91.198.170.33^{🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1}
			PTR	`mailscan5.esmero.nl`
MX	`mxs20.esmero.nl`⁽²⁰⁾
		A	2a0b:c140:aa::31^{🇳🇱 Esmero2a0b:c140::/32 ESMERO-BLOCKV6-1}
			PTR	`mailscan1.esmero.nl`
		A	2a0b:c140:aa::33^{🇳🇱 Esmero2a0b:c140::/32 ESMERO-BLOCKV6-1}
			PTR	`mailscan5.esmero.nl`
		A	51.38.124.81^{🇫🇷 OVH51.38.0.0/16}
			PTR	`mailscan4.esmero.nl`
		A	91.198.170.31^{🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1}
			PTR	`mailscan1.esmero.nl`
		A	91.198.170.33^{🇳🇱 Esmero91.198.170.0/23 ESMERO-BLOCK-1}
			PTR	`mailscan5.esmero.nl`
TXT	`v=spf1 +a +mx +a:plesk15.esmero.nl include:spf.esmero.nl -all`
SOA	`ns1.esmero.nl`accounting@keesingtechnologies.com 2026-02-09 #2

`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 23:00:01 +0000 (EPOCH 1774566001)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-03-26 #46

Previously MX for

keesingreferencesystems.nl

Same first word

keesingreferencesystems.com

keesingreferencesystems.fr

keesingreferencesystems.nl

DNS History

9 records (5 active, 4 former)

○NSns1.20-allhosting.nl2015-05-23 → 2019-01-11 · 4 obs

● 2015-05-23 11:00:12
● 2019-01-11 07:19:28
○ 2026-03-09 18:55:46
○ 2026-03-26 23:36:34

●NSns1.esmero.nl2026-03-09 → 2026-03-26 · 3 obs

○ 2019-01-11 07:19:28
● 2026-03-09 18:55:46
● 2026-03-26 23:36:34

○NSns2.20-allhosting.nl2015-05-23 → 2019-01-11 · 4 obs

● 2015-05-23 11:00:12
● 2019-01-11 07:19:28
○ 2026-03-09 18:55:46
○ 2026-03-26 23:36:34

●NSns2.esmero.nl2026-03-09 → 2026-03-26 · 3 obs

○ 2019-01-11 07:19:28
● 2026-03-09 18:55:46
● 2026-03-26 23:36:34

○MXkeesingreferencesystems.nl2015-05-23 → 2019-01-11 · 4 obs

● 2015-05-23 11:00:12
● 2019-01-11 07:19:28
○ 2026-03-09 18:55:46
○ 2026-03-26 23:36:34

●MXmxs10.esmero.nl2026-03-09 → 2026-03-26 · 3 obs

○ 2019-01-11 07:19:28
● 2026-03-09 18:55:46
● 2026-03-26 23:36:34

●MXmxs20.esmero.nl2026-03-09 → 2026-03-26 · 3 obs

○ 2019-01-11 07:19:28
● 2026-03-09 18:55:46
● 2026-03-26 23:36:34

○A62.212.130.1142015-05-23 → 2019-01-11 · 4 obs

● 2015-05-23 11:00:12
● 2019-01-11 07:19:28
○ 2026-03-09 18:55:46
○ 2026-03-26 23:36:34

●A91.198.170.1152026-03-09 → 2026-03-26 · 3 obs

○ 2019-01-11 07:19:28
● 2026-03-09 18:55:46
● 2026-03-26 23:36:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns3.dns.nl, ns1.dns.nl, ns4.dns.nl	-
keesingreferencesystems.nl	ns1.esmero.nl, ns2.esmero.nl	-

✅ Authoritative Response

Server:31.14.96.246

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for keesingreferencesystems.nl (unsigned zone)

⏱️ Timing

Total: 507ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.198.170.115`
NS	2	`ns1.esmero.nl, ns2.esmero.nl`
MX	2	`mxs10.esmero.nl (pri: 10), mxs20.esmero.nl (pri: 20)`
TXT	1	`v=spf1 +a +mx +a:plesk15.esmero.nl inclu`
SOA	1	`ns1.esmero.nl accounting.keesingtechnolo`

Analysis

IP Addresses

keesingreferencesystems.nl points to a single IP: 91.198.170.115.

Other host names, for instance www.e-dns.nl, www.pa1izr.nl, mail.deltaned.nl, krisbaeckelandt.be and raydiculous.com share IP numbers with keesingreferencesystems.nl.

Name Servers

Two name servers ns1.esmero.nl and ns2.esmero.nl handle delegation for keesingreferencesystems.nl.

keesingreferencesystems.nl uses the same name server setup as other domains, for example kompakt-hifi.be, interieurlin.be, legalsportsagency.com, schaeken.nl and perfectoldtimer.com.

keesingreferencesystems.nl shares name servers with other domains at least partially, for instance rebelarchitect.be, damesinzaken.nl, rocksandclocks.eu and verloskundigenhetooievaarsnest.nl.

These name servers are often used with the name servers cloud1.martinmedia.nl and cloud2.martinmedia.nl.

Host names with two IP numbers:

ns1.esmero.nl points to: 2a0b:c140:aa::10 and 91.198.170.10

ns2.esmero.nl points to: 2a01:7c8:bb01:147::1 and 31.14.96.246

Mail Servers

keesingreferencesystems.nl is handled by two mail servers: mxs10.esmero.nl and mxs20.esmero.nl.

keesingreferencesystems.nl has the same mail server setup as other domains, including stolwerk.net, jaapholwerda.com, voetbalprojectiescherm.nl, djroy.nl and hbdjschool.nl.

Host names with five IP numbers:

The host name mxs10.esmero.nl points to: 2a0b:c140:aa::31, 2a0b:c140:aa::33, 51.38.124.81, 91.198.170.31 and 91.198.170.33.

The host name mxs20.esmero.nl points to: 2a0b:c140:aa::31, 2a0b:c140:aa::33, 51.38.124.81, 91.198.170.31 and 91.198.170.33.

Host names that point to 2a0b:c140:aa::31: mxs10.esmero.nl and mxs20.esmero.nl.

Host names that point to 2a0b:c140:aa::33: mxs10.esmero.nl and mxs20.esmero.nl.

Host names that point to 51.38.124.81: mxs10.esmero.nl and mxs20.esmero.nl.

Host names that point to 91.198.170.31: mxs10.esmero.nl and mxs20.esmero.nl.

Host names that point to 91.198.170.33: mxs10.esmero.nl and mxs20.esmero.nl.

keesingreferencesystems.nl - robtex.com