`mail.backup.semark.dk`

CNAME	`semark.dk`
DNSSEC	🔒 Signed (DS record present)
A	83.151.155.18^{🇩🇰 GlobalConnect-AS3102783.151.128.0/18 Nianet 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	`mail.semark.dk` ⭐
		A	83.151.155.18^{🇩🇰 GlobalConnect-AS3102783.151.128.0/18 Nianet A/S}
MX	`hem01.semark.dk`⁽²⁰⁾
TXT	`google-site-verification=0kcptuDnpUMhrEuEd-1rMwEOp_R8BLDY6bIaWz-Wndc`
TXT	`v=spf1 redirect=_spf.semarkit.net`
SOA	`ns01.one.com`hostmaster@one.com 2026-04-04 #1

`backup.semark.dk`

DNSSEC

⚠️ Not signed

WOT: SAFE (60/100)
WOT: SAFE (62/100)

MX for

semarkit.net

Same first word

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mail.s3.amazonaws.com

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mail.radio.fm

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mail.party

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mail.com.tw

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mail.gov.ao

mail.me

mail.ac.gov.br

mail.edu.me

mail.gov.ru

mail.pr

mail.mlbfan.org

mail.ph

mail.nhlfan.net

mail.gru.br

mail.gl

mail.link

mail.no

mail.net.vn

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mail.pictures

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DNS History

3 records (1 active, 2 former)

○NSns01.one.com2026-03-11 → 2026-04-12 · 2 obs

○ 2026-03-11 13:01:54
○ 2026-04-12 18:44:10

○NSns02.one.com2026-03-11 → 2026-04-12 · 2 obs

○ 2026-03-11 13:01:54
○ 2026-04-12 18:44:10

●CNAMEsemark.dk2026-03-11 → 2026-04-12 · 2 obs

● 2026-03-11 13:01:54
● 2026-04-12 18:44:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, t.nic.dk, s.nic.dk, l.nic.dk...	-
semark.dk	ns01.one.com, ns02.one.com	-

✅ 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: 1192ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`semark.dk`

Analysis

Mail Server Role

mail.backup.semark.dk serves as a mail server for semarkit.net.

mail.semark.dk is commonly used as a mail server alongside mail.backup.semark.dk.

IP Addresses

mail.backup.semark.dk resolves to one IP number: 83.151.155.18.

Other host names, for instance semarkit.net, mail.semark.dk, bittoo.dk, totalbooking.dk and suhr.dk share IP numbers with mail.backup.semark.dk.

Name Servers

mail.backup.semark.dk's delegation uses two name servers: ns01.one.com and ns02.one.com.

mail.backup.semark.dk uses the same name server setup as other domains, such as sundbergsvallen.se, justlead.ch, parle.be, midtdata.dk and varmeteknikkost.no.

Host names with two IPs:

ns01.one.com points to 2001:67c:28cc::10 and 195.206.121.10

ns02.one.com points to 2001:67c:3c0::10 and 185.10.11.10

Mail Servers

mail.backup.semark.dk is served by two mail servers hem01.semark.dk and mail.semark.dk.

mail.backup.semark.dk shares the same mail server setup as other domains, for example semark.dk.

mail.backup.semark.dk shares at least some mail servers with other domains, for example betanik.dk, 00011.dk, sheepdog.dk, bittoo.net and housemaster.dk.

These mail servers are often used together with the mail servers adsl.semark.dk.

Host names with a single IP number: The host name mail.semark.dk points to 83.151.155.18.

mail.backup.semark.dk - robtex.com