`mail.robkubben.com`

	DNSSEC	⚠️ Not signed
	A	2a03:3c00:a002:215::1000^{🇳🇱 PREVIDER-AS2a03:3c00:8000::/34 NL-ANTAGONIST-20230327}
	A	141.138.169.215^{🇳🇱 PREVIDER-AS141.138.168.0/22 NL-ANTAGONIST-20090921 Antagonist B.V., Enschede, NL}

`robkubben.com`

	DNSSEC	🔒 Signed (DS record present)
	A	2a03:3c00:a002:215::1000^{🇳🇱 PREVIDER-AS2a03:3c00:8000::/34 NL-ANTAGONIST-20230327}
	A	141.138.169.215^{🇳🇱 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.robkubben.com` ⭐
	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 2026-02-03 #1

MX for

robkubben.com

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DNS History

4 records (2 active, 2 former)

●A141.138.169.2152015-10-11 → 2026-05-12 · 3 obs

○ 2015-05-08 11:06:12
● 2015-10-11 15:45:40
● 2026-05-12 04:42:02

○A195.211.73.1912015-05-08 → 2015-05-08 · 3 obs

● 2015-05-08 11:06:12
○ 2015-10-11 15:45:40
○ 2026-05-12 04:42:02

○A2a03:3c00:a001:108::252015-05-08 → 2015-05-08 · 3 obs

● 2015-05-08 11:06:12
○ 2015-10-11 15:45:40
○ 2026-05-12 04:42:02

●A2a03:3c00:a002:215::10002015-10-11 → 2026-05-12 · 3 obs

○ 2015-05-08 11:06:12
● 2015-10-11 15:45:40
● 2026-05-12 04:42:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net...	-
robkubben.com	webhostingserver.g1-dns.com, webhostingserver.g1-dns.one	2 records

✅ Authoritative Response

Server:185.10.11.15

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: 4874ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`141.138.169.215`
AAAA	1	`2a03:3c00:a002:215::1000`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (webhostingserver.g1-dns.com, webhostingserver.g1-dns.com)

Analysis

Mail Server Role

mail.robkubben.com serves as the mail server for robkubben.com.

IP Addresses

mail.robkubben.com resolves to two IP numbers: 2a03:3c00:a002:215::1000 and 141.138.169.215.

Other host names, for instance michelolden.com, mail.xitro.nl, fotomarian.nl, geosignum.com and mail.lapresa.nl share IP numbers with mail.robkubben.com.

mail.robkubben.com - robtex.com