leffmann.com - dns.ninja

`leffmann.com`

DNSSEC	⚠️ Not signed
A	2a02:2350:5:106:806a:1cc0:cd74:402d^{🇩🇰 ONECOM2a02:2350::/32 One.com A/S}
A	46.30.215.173^{🇩🇰 ONECOM46.30.208.0/21 One.com A/S}
NS	`ns01.one.com` ⭐
		A	2001:67c:28cc::10^{ONECOM-INFRA2001:67c:28cc::/48}
			PTR	`ns01.one.com`
		A	195.206.121.10^{ONECOM-INFRA195.206.121.0/24}
			PTR	`ns01.one.com`
NS	`ns02.one.com`
		A	2001:67c:3c0::10^{🇩🇰 ONECOM2001:67c:3c0::/48}
			PTR	`ns02.one.com`
		A	185.10.11.10^{ONECOM185.10.11.0/24}
			PTR	`ns02.one.com`
MX	`mx1.mailpod15-cph3.g1i.one.com` ⭐
		A	104.37.35.36^{🇩🇰 ONECOM104.37.32.0/21 One.com A/S}
			PTR	`mx1.mailpod15-cph3.g1i.one.com`
MX	`mx2.mailpod15-cph3.g1i.one.com` ⭐
		A	104.37.35.37^{🇩🇰 ONECOM104.37.32.0/21 One.com A/S}
			PTR	`mx2.mailpod15-cph3.g1i.one.com`
MX	`mx3.mailpod15-cph3.g1i.one.com` ⭐
		A	104.37.35.38^{🇩🇰 ONECOM104.37.32.0/21 One.com A/S}
			PTR	`mx3.mailpod15-cph3.g1i.one.com`
MX	`mx4.mailpod15-cph3.g1i.one.com` ⭐
		A	104.37.35.39^{🇩🇰 ONECOM104.37.32.0/21 One.com A/S}
			PTR	`mx4.mailpod15-cph3.g1i.one.com`
TXT	`v=spf1 include:_custspf.one.com ~all`
SOA	`ns01.one.com`hostmaster@one.com 2026-06-19 #2

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1784962572

Same first word

leffmann.com

leffmann.net

DNS History

12 records (8 active, 4 former)

●NSns01.one.com2015-07-11 → 2026-07-25 · 2 obs

● 2015-07-11 12:54:04
● 2026-07-25 07:02:28

●NSns02.one.com2015-07-11 → 2026-07-25 · 2 obs

● 2015-07-11 12:54:04
● 2026-07-25 07:02:28

●MXmx1.mailpod15-cph3.g1i.one.com2026-02-27 → 2026-07-25 · 3 obs

○ 2017-03-21 15:31:18
● 2026-02-27 00:52:40
● 2026-07-25 07:02:28

●MXmx2.mailpod15-cph3.g1i.one.com2026-02-27 → 2026-07-25 · 3 obs

○ 2017-03-21 15:31:18
● 2026-02-27 00:52:40
● 2026-07-25 07:02:28

●MXmx3.mailpod15-cph3.g1i.one.com2026-02-27 → 2026-07-25 · 3 obs

○ 2017-03-21 15:31:18
● 2026-02-27 00:52:40
● 2026-07-25 07:02:28

●MXmx4.mailpod15-cph3.g1i.one.com2026-02-27 → 2026-07-25 · 3 obs

○ 2017-03-21 15:31:18
● 2026-02-27 00:52:40
● 2026-07-25 07:02:28

○MXmxcluster1.one.com2015-07-11 → 2017-03-21 · 4 obs

● 2015-07-11 12:54:04
● 2017-03-21 15:31:18
○ 2026-02-27 00:52:40
○ 2026-07-25 07:02:28

○MXmxcluster2.one.com2015-07-11 → 2017-03-21 · 4 obs

● 2015-07-11 12:54:04
● 2017-03-21 15:31:18
○ 2026-02-27 00:52:40
○ 2026-07-25 07:02:28

●A2a02:2350:5:106:806a:1cc0:cd74:402d2026-02-27 → 2026-07-25 · 3 obs

○ 2017-03-21 15:31:18
● 2026-02-27 00:52:40
● 2026-07-25 07:02:28

○A46.30.212.562015-07-11 → 2016-02-26 · 4 obs

● 2015-07-11 12:54:04
● 2016-02-26 08:52:00
○ 2016-07-10 01:32:04
○ 2026-07-25 07:02:28

○A46.30.213.1302016-07-10 → 2017-03-21 · 5 obs

○ 2016-02-26 08:52:00
● 2016-07-10 01:32:04
● 2017-03-21 15:31:18
○ 2026-02-27 00:52:40
○ 2026-07-25 07:02:28

●A46.30.215.1732026-02-27 → 2026-07-25 · 3 obs

○ 2017-03-21 15:31:18
● 2026-02-27 00:52:40
● 2026-07-25 07:02:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net, h.gtld-servers.net...	-
leffmann.com	ns01.one.com, ns02.one.com	4 records

✅ Authoritative Response

Server:185.10.11.10

NS records: ns01.one.com, ns02.one.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 677ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`46.30.215.173`
AAAA	1	`2a02:2350:5:106:806a:1cc0:cd74:402d`
NS	2	`ns02.one.com, ns01.one.com`
MX	4	`mx1.mailpod15-cph3.g1i.one.com (pri: 10), mx3.mailpod15-cph3.g1i.one.com (pri: 10)...`
TXT	1	`v=spf1 include:_custspf.one.com ~all`
SOA	1	`ns01.one.com hostmaster.one.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns01.one.com, ns01.one.com, ns02.one.com...)

Analysis

IP Addresses

leffmann.com resolves to the IP addresses 46.30.215.173 and 2a02:2350:5:106:806a:1cc0:cd74:402d

Two other host names, along with www.minex.be, triverius.be and jpn.be, also share IP numbers with leffmann.com.

Name Servers

Two name servers handle the delegation for leffmann.com: ns01.one.com and ns02.one.com.

leffmann.com shares its NS records with other domains, for example daisyginsberg.com, joannagunther.se, discovertheworld.dk and two others.

leffmann.com is at least partially co-delegated on name servers with other domains, such as dronjak.com.

ns01.one.com and ns02.one.com both carry two IP addresses. The A records for ns01.one.com are 195.206.121.10 and 2001:67c:28cc::10; the A records for ns02.one.com are 185.10.11.10 and 2001:67c:3c0::10.

Mail Servers

leffmann.com has four mail servers: mx1.mailpod15-cph3.g1i.one.com, mx2.mailpod15-cph3.g1i.one.com, mx3.mailpod15-cph3.g1i.one.com and mx4.mailpod15-cph3.g1i.one.com.

There is at least a partial MX overlap between leffmann.com and other domains, including senere.dk, protectedby.net, nooyen.dk and two others.

The hosts mx1.mailpod15-cph3.g1i.one.com, mx2.mailpod15-cph3.g1i.one.com, mx3.mailpod15-cph3.g1i.one.com and mx4.mailpod15-cph3.g1i.one.com all resolve to exactly one IP address each: 104.37.35.36, 104.37.35.37, 104.37.35.38 and 104.37.35.39 respectively.