`mail.coreproof.nl`

	DNSSEC	⚠️ Not signed
	A	2a03:3c00:a002:214::1004^{🇳🇱 PREVIDER-AS2a03:3c00:8000::/34 NL-ANTAGONIST-20230327}
	A	141.138.169.214^{🇳🇱 PREVIDER-AS141.138.168.0/22 NL-ANTAGONIST-20090921 Antagonist B.V., Enschede, NL}

`coreproof.nl`

	DNSSEC	🔒 Signed (DS record present)
	A	2a03:3c00:a002:214::1004^{🇳🇱 PREVIDER-AS2a03:3c00:8000::/34 NL-ANTAGONIST-20230327}
	A	141.138.169.214^{🇳🇱 PREVIDER-AS141.138.168.0/22 NL-ANTAGONIST-20090921 Antagonist B.V., Enschede, NL}
	NS	`webhostingserver.g1-dns.one` ⭐
	NS	`webhostingserver.g1-dns.com`
	MX	`mail.coreproof.nl` ⭐
	TXT	`v=spf1 a mx ip4:195.211.72.0/22 ip4:141.138.168.0/21 ip6:2a03:3c00:a001::/48 ...`
	SOA	`webhostingserver.g1-dns.one`hostmaster@webhostingserver.nl 2026-01-25 #1

MX for

coreproof.nl

Same first word

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DNS History

5 records (2 active, 3 former)

●A141.138.169.2142026-03-09 → 2026-05-11 · 3 obs

○ 2016-06-18 08:31:44
● 2026-03-09 16:59:02
● 2026-05-11 05:46:00

○A149.210.216.1022016-06-18 → 2016-06-18 · 4 obs

○ 2016-02-26 00:36:32
● 2016-06-18 08:31:44
○ 2026-03-09 16:59:02
○ 2026-05-11 05:46:00

○A2a01:7c8:aab9:65a::12016-06-18 → 2016-06-18 · 4 obs

○ 2016-02-26 00:36:32
● 2016-06-18 08:31:44
○ 2026-03-09 16:59:02
○ 2026-05-11 05:46:00

●A2a03:3c00:a002:214::10042026-03-09 → 2026-05-11 · 3 obs

○ 2016-06-18 08:31:44
● 2026-03-09 16:59:02
● 2026-05-11 05:46:00

○A87.233.188.382015-07-17 → 2016-02-26 · 4 obs

● 2015-07-17 05:38:58
● 2016-02-26 00:36:32
○ 2016-06-18 08:31:44
○ 2026-05-11 05:46:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
nl	ns1.dns.nl, ns3.dns.nl, ns4.dns.nl	-
coreproof.nl	webhostingserver.g1-dns.com, webhostingserver.g1-dns.one	-

✅ Authoritative Response

Server:195.206.121.15

NS records: webhostingserver.g1-dns.com, webhostingserver.g1-dns.one

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 596ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`141.138.169.214`
AAAA	1	`2a03:3c00:a002:214::1004`

Analysis

Mail Server Role

The mail server for coreproof.nl is mail.coreproof.nl.

IP Addresses

mail.coreproof.nl points to two IP numbers: 2a03:3c00:a002:214::1004 and 141.138.169.214.

Other host names, for instance mail.medialize.nl, doubleconnect.nl, technischtekenbureau.nl, tjipie.nl and digilab.nl share IP numbers with mail.coreproof.nl.

mail.coreproof.nl - robtex.com