holddanmarkrent.dk

Records from scan: 2026-10-04 03:25:27 · 1261ms total · last checked 2026-10-16 14:59 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holddanmarkrent.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 18 October 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.107 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by holddanmarkrent-dk.mail.protection.outlook.com. 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 32ms

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 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.107	3600s	vm1057.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	holddanmarkrent-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::d 2a01:111:f403:ca09::24 2a01:111:f403:ca48::12 52.101.103.162 52.101.181.156 52.101.68.25 52.101.68.8	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-du0pr03cu00100.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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 135ms

TXT Record
MS=ms83682887
v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:spf.shopfactory.io -all

✉️ SPF#

Policy	Record (holddanmarkrent.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:spf.shopfactory.io -all

📨 DMARC#

Policy	Record (_dmarc.holddanmarkrent.dk)
p=quarantine	v=DMARC1; p=quarantine; adkim=s; aspf=s;

📬 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 2026-10-11 06:16:30

www	185.21.40.107 (AS48854) (address records, no CNAME)
www vs bare domain	Same network holddanmarkrent.dk: 185.21.40.107 (AS48854) www.holddanmarkrent.dk: 185.21.40.107 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-holddanmarkrent-dk._domainkey.econetdk.d-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: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

51ms

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

🏷️ SOA#

40ms

Field	Value
Serial	2026092101
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 2026-10-07 01:54:36

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-10-18
Expires	2026-10-31 (14d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

38ms

34ms

AAAA

42ms

TXT

135ms

CAA

42ms

HTTPS

43ms

TLSA

885ms

SOA

40ms

MTA-STS

39ms

DNSSEC

51ms

SRV

58ms

Total

1261ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 03:25:27 shown	1261ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 21:56:00	1851ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-06 05:23:59	1141ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-20 09:13:13	5334ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 22:53:48	2930ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:12:17	284ms	0 NS 0 A 0 MX	❓ Unknown