dueholmrevision.dk

Records from scan: 2026-10-07 16:20:34 · 1030ms total · last checked 2026-10-17 10:40 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dueholmrevision.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 18 September 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.106.21 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by dueholmrevision-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 35ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.106.21	3600s	linux201.curanet.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	dueholmrevision-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::f 2a01:111:f403:ca38::a 2a01:111:f403:ca48::e 52.101.103.143 52.101.68.21 52.101.73.123 52.101.73.145	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am6pr02cu00301.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 → 52.98.154.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 53ms

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

📝 TXT Records#

1 records 121ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.gigahost.dk ip4:89.186.169.0/24 ip4:185.130.99.33 -all

✉️ SPF#

Policy	Record (dueholmrevision.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.gigahost.dk ip4:89.186.169.0/24 ip4:185.130.99.33 -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-07 16:20:34

www	94.231.106.21 (AS48854) (address records, no CNAME)
www vs bare domain	Same network dueholmrevision.dk: 94.231.106.21 (AS48854) www.dueholmrevision.dk: 94.231.106.21 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-dueholmrevision-dk._domainkey.dueholmrevision.onmicrosoft.com	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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

55ms

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

🏷️ SOA#

29ms

Field	Value
Serial	2021111801
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-10 17:19:33

Field	Value
Registrar	CURANET A/S
Registered	2020-09-18
Expires	2027-09-30 (347d)

📋 WHOIS#

⏱️ Lookup Timing#

35ms

33ms

34ms

AAAA

34ms

TXT

121ms

CAA

40ms

HTTPS

34ms

TLSA

619ms

SOA

29ms

MTA-STS

49ms

DNSSEC

55ms

SRV

53ms

Total

1030ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 16:20:34 shown	1030ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 23:03:07	623ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 00:07:11	793ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 10:36:23	801ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 16:15:04	4115ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 04:55:22	879ms	2 NS 1 A 1 MX	🔒 Secure