cels.dk

Records from scan: 2026-10-13 20:06:00 · 2730ms total · last checked 2026-10-19 01:27 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cels.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 19 January 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.15.73.125 is hosted by Hiper A/S (AS203953) in Denmark. Mail is handled by cels-dk.mail.protection.outlook.com, mail.cels.dk and 1 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 319ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 395ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.15.73.125	600s	xb90f497d.customers.hiper-net.dk	AS203953	Hiper A/S	185.15.72.0/22	🇩🇰 Denmark	Virum

📧 MX Records#

3 records 393ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cels-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca09::22 2a01:111:f403:ca21::c 2a01:111:f403:ca48::c 52.101.103.162 52.101.185.24 52.101.68.12 52.101.68.25	mail-db7pr03cu00601.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation
99	600s	mail.cels.dk	185.15.73.125	xb90f497d.customers.hiper-net.dk	AS203953 Hiper A/S
999	600s	116809665.pamx1.hotmail.com	52.101.103.161 52.101.41.55 52.101.9.82 52.101.9.88	— — — —	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.154.136
🔶 Autoconfig	185.15.73.125

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 519ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 618ms

TXT Record
MS=ms51618181
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (cels.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.cels.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100; rua=mailto:rua@cels.dk; ruf=mailto:ruf@cels.dk

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

checked 2026-10-13 20:06:00

www	185.15.73.125 (AS203953) (address records, no CNAME)
www vs bare domain	Same network cels.dk: 185.15.73.125 (AS203953) www.cels.dk: 185.15.73.125 (AS203953)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-cels-dk._domainkey.cels01.w-v1.dkim.mail.microsoft	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

517ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

76ms

Field	Value
Serial	2026101201
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-13 20:29:46

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2004-01-19
Expires	2028-01-31 (468d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
piaschilling.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

319ms

395ms

393ms

AAAA

92ms

TXT

618ms

CAA

385ms

HTTPS

402ms

TLSA

1046ms

SOA

76ms

MTA-STS

441ms

DNSSEC

517ms

SRV

519ms

Total

2730ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 20:06:00 shown	2730ms	2 NS 1 A 3 MX	🔒 Secure
2026-10-01 04:38:44	1045ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-24 15:58:54	1462ms	2 NS 1 A 3 MX	🔒 Secure
2026-09-13 23:21:22	1603ms	2 NS 1 A 3 MX	🔒 Secure
2026-08-12 18:26:06	17321ms	2 NS 1 A 3 MX	🔒 Secure
2026-08-11 10:28:13	5807ms	2 NS 1 A 3 MX	🔒 Secure
2026-07-19 07:35:15	1344ms	2 NS 1 A 3 MX	🔒 Secure
2026-07-15 15:13:28	1486ms	2 NS 1 A 3 MX	🔒 Secure
2026-07-11 12:08:05	5958ms	2 NS 1 A 3 MX	🔒 Secure
2026-07-01 23:48:33	1830ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-29 02:02:39	1165ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-16 20:13:02	2584ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-16 20:07:08	65535ms	2 NS 1 A 3 MX	🔒 Secure
2026-06-16 20:05:16	892ms	2 NS 1 A 3 MX	⚠️ Bogus
2026-06-16 20:01:37	753ms	2 NS 1 A 3 MX	🔒 Secure