oppersma.nl - dns.ninja

`oppersma.nl`

DNSSEC	🔒 Signed (DS record present)
A	2a02:4a8:ac24:112::100:136^{🇨🇿 ACTIVE24-AS2a02:4a8::/32 CZ-ACTIVE24-NET6}
		PTR	`stan.globenet.cz`
A	81.95.100.136^{🇨🇿 ACTIVE24-AS81.95.96.0/20 CZ-ACTIVE24-NET1}
NS	`ns1.websupport.cz` ⭐
		A	2a10:bbc0::11^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns1.websupport.eu`
		A	45.10.97.11^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns1.websupport.eu`
NS	`ns2.websupport.cz`
		A	2a02:250:3::12^{🇸🇪 ACTIVE24-AS2a02:250:3::/48}
			PTR	`ns2.websupport.eu`
		A	185.71.159.12^{🇸🇪 ACTIVE24-AS185.71.159.0/24}
			PTR	`ns2.websupport.eu`
NS	`ns3.websupport.eu`
		A	2a10:bbc0::13^{🇨🇿 ACTIVE24-AS2a10:bbc0::/32}
			PTR	`ns3.websupport.eu`
		A	45.10.97.13^{🇨🇿 ACTIVE24-AS45.10.97.0/24}
			PTR	`ns3.websupport.eu`
MX	`mailin1.oppersma.nl` ⭐
		A	2a00:4b40:aaaa:2101:45:13:137:112^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
		A	45.13.137.113^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`m1-u6-mx.websupport.hu`
MX	`mailin2.oppersma.nl`⁽¹⁰⁰⁾
		A	2a00:4b40:aaaa:2101:45:13:137:104^{🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32}
			PTR	`mx20.websupport.cz`
		A	45.13.137.110^{🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24}
			PTR	`m1-u6-mx.websupport.sk`
SOA	`ns1.websupport.cz`admin@websupport.cz serial=1763075804

`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 22:00:02 +0000 (EPOCH 1783807202)`
	SOA	`ns1.dns.nl`dns@sidn.nl 2026-07-11 #44

Subdomains

mailin2.oppersma.nl

mailin1.oppersma.nl

Same first word

oppersma.com

oppersma.nl

Similar names

DNS History

21 records (7 active, 14 former)

○NSalfa.ns.active24.cz2016-02-27 → 2017-11-02 · 5 obs

○ 2015-12-03 13:57:36
● 2016-02-27 18:25:26
● 2017-11-02 10:52:40
○ 2026-03-26 13:51:42
○ 2026-07-11 23:01:06

○NSans1.active24.com2015-08-19 → 2015-12-03 · 4 obs

● 2015-08-19 06:16:54
● 2015-12-03 13:57:36
○ 2016-02-27 18:25:26
○ 2026-07-11 23:01:06

○NSans2.active24.com2015-08-19 → 2015-12-03 · 4 obs

● 2015-08-19 06:16:54
● 2015-12-03 13:57:36
○ 2016-02-27 18:25:26
○ 2026-07-11 23:01:06

○NSans3.active24.com2015-08-19 → 2015-12-03 · 4 obs

● 2015-08-19 06:16:54
● 2015-12-03 13:57:36
○ 2016-02-27 18:25:26
○ 2026-07-11 23:01:06

○NSbeta.ns.active24.cz2016-02-27 → 2017-11-02 · 5 obs

○ 2015-12-03 13:57:36
● 2016-02-27 18:25:26
● 2017-11-02 10:52:40
○ 2026-03-26 13:51:42
○ 2026-07-11 23:01:06

○NSgama.ns.active24.sk2016-02-27 → 2017-11-02 · 5 obs

○ 2015-12-03 13:57:36
● 2016-02-27 18:25:26
● 2017-11-02 10:52:40
○ 2026-03-26 13:51:42
○ 2026-07-11 23:01:06

●NSns1.websupport.cz2026-03-26 → 2026-07-11 · 3 obs

○ 2017-11-02 10:52:40
● 2026-03-26 13:51:42
● 2026-07-11 23:01:06

●NSns2.websupport.cz2026-03-26 → 2026-07-11 · 3 obs

○ 2017-11-02 10:52:40
● 2026-03-26 13:51:42
● 2026-07-11 23:01:06

●NSns3.websupport.eu2026-03-26 → 2026-07-11 · 3 obs

○ 2017-11-02 10:52:40
● 2026-03-26 13:51:42
● 2026-07-11 23:01:06

○MXho01-ex01-mail.active24.com2015-08-19 → 2015-12-03 · 4 obs

● 2015-08-19 06:16:54
● 2015-12-03 13:57:36
○ 2016-02-27 18:25:26
○ 2026-07-11 23:01:06

○MXin.smtp.cz2016-02-27 → 2016-09-09 · 5 obs

○ 2015-12-03 13:57:36
● 2016-02-27 18:25:26
● 2016-09-09 07:15:56
○ 2017-11-02 10:52:40
○ 2026-07-11 23:01:06

●MXmailin1.oppersma.nl2026-03-26 → 2026-07-11 · 3 obs

○ 2017-11-02 10:52:40
● 2026-03-26 13:51:42
● 2026-07-11 23:01:06

●MXmailin2.oppersma.nl2026-03-26 → 2026-07-11 · 3 obs

○ 2017-11-02 10:52:40
● 2026-03-26 13:51:42
● 2026-07-11 23:01:06

○MXmx.smtp.cz2016-02-27 → 2016-09-09 · 5 obs

○ 2015-12-03 13:57:36
● 2016-02-27 18:25:26
● 2016-09-09 07:15:56
○ 2017-11-02 10:52:40
○ 2026-07-11 23:01:06

○MXmx1.active24.com2017-11-02 → 2017-11-02 · 4 obs

○ 2016-09-09 07:15:56
● 2017-11-02 10:52:40
○ 2026-03-26 13:51:42
○ 2026-07-11 23:01:06

○MXmx2.active24.com2017-11-02 → 2017-11-02 · 4 obs

○ 2016-09-09 07:15:56
● 2017-11-02 10:52:40
○ 2026-03-26 13:51:42
○ 2026-07-11 23:01:06

○MXmx4.active24.com2015-08-19 → 2015-12-03 · 4 obs

● 2015-08-19 06:16:54
● 2015-12-03 13:57:36
○ 2016-02-27 18:25:26
○ 2026-07-11 23:01:06

○A213.188.134.2152015-08-19 → 2015-08-19 · 3 obs

● 2015-08-19 06:16:54
○ 2015-12-03 13:57:36
○ 2026-07-11 23:01:06

○A213.188.138.702015-12-03 → 2016-02-27 · 5 obs

○ 2015-08-19 06:16:54
● 2015-12-03 13:57:36
● 2016-02-27 18:25:26
○ 2016-09-09 07:15:56
○ 2026-07-11 23:01:06

●A2a02:4a8:ac24:112::100:1362016-09-09 → 2026-07-11 · 3 obs

○ 2016-02-27 18:25:26
● 2016-09-09 07:15:56
● 2026-07-11 23:01:06

●A81.95.100.1362016-09-09 → 2026-07-11 · 3 obs

○ 2016-02-27 18:25:26
● 2016-09-09 07:15:56
● 2026-07-11 23:01:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns4.dns.nl, ns3.dns.nl, ns1.dns.nl	-
oppersma.nl	ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu	-

✅ Authoritative Response

Server:45.10.97.13

NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1233ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`81.95.100.136`
AAAA	1	`2a02:4a8:ac24:112::100:136`
NS	3	`ns1.websupport.cz, ns2.websupport.cz...`
MX	2	`mailin1.oppersma.nl (pri: 10), mailin2.oppersma.nl (pri: 100)`
SOA	1	`ns1.websupport.cz admin.websupport.cz`

Analysis

Hierarchy

mailin2.oppersma.nl and mailin1.oppersma.nl are both subdomains of oppersma.nl.

IP Addresses

oppersma.nl has two IP addresses: 81.95.100.136 and 2a02:4a8:ac24:112::100:136

kharboot.com, www.b-a-c.nl, skooba.co.uk and two other host names share IP numbers with oppersma.nl.

Name Servers

oppersma.nl is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

The name servers of oppersma.nl overlap at least partially with those of other domains — among them kavale.cz, grantica.net, nyylo.cz and two more.

The name servers ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk are commonly seen alongside these name servers.

ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu each resolve to two IP addresses: ns1.websupport.cz resolves to 45.10.97.11 and 2a10:bbc0::11; ns2.websupport.cz resolves to 185.71.159.12 and 2a02:250:3::12; ns3.websupport.eu resolves to 45.10.97.13 and 2a10:bbc0::13.

Mail Servers

Mail for oppersma.nl is handled by two mail servers — mailin1.oppersma.nl and mailin2.oppersma.nl.

mailin1.oppersma.nl and mailin2.oppersma.nl each resolve to two IP addresses: mailin1.oppersma.nl points to 45.13.137.113 and 2a00:4b40:aaaa:2101:45:13:137:112, while mailin2.oppersma.nl points to 45.13.137.110 and 2a00:4b40:aaaa:2101:45:13:137:104.