altan.dk

📜 Historical scan 2026-06-28 11:45:21 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

altan.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 8 December 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.184.85.16 is hosted by PerfGrid (AS59795) in The Netherlands. Mail is handled by altan-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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 48ms

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 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
213.184.85.16	300s	nlcp07.hosting4real.net	AS59795	PerfGrid	213.184.84.0/23	🇳🇱 The Netherlands	—

📧 MX Records#

1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	altan-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::2 2a01:111:f403:ca04::5 2a01:111:f403:ca09::8 52.101.68.21 52.101.73.1 52.101.73.19 52.101.73.22	mail-db7pr03cu00401.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 49ms

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

📝 TXT Records#

7 records 147ms

TXT Record
_gzchcmiw9w3kq8zfzmdsz5w55sytlgm
_vrr6a86a5xag3jgu1g866agxad2it9c
brevo-code:83de97778a6927a9395fd4d4d2e18a86
ca3-b28a226f8f0e49089283620b6fb9389f
klaviyo-site-verification=T78n3W
p03BIHXPCecxaEGAhIbqHslYuQ+qk8amMCnKo0xn2qwuCadyjTIfn6csvVYxQ7Oped8FHOMNpQ04yI8bzuZDYA==
v=spf1 include:spf.protection.outlook.com include:spf-eu.letsignit.com include:sendinblue.com ip4:13.81.11.134 ip4:185.9.6.189 ip4:13.53.76.169 ip4:80.208.27.154 -all

✉️ SPF#

Policy	Record (altan.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf-eu.letsignit.com include:sendinblue.com ip4:13.81.11.134 ip4:185.9.6.189 ip4:13.53.76.169 ip4:80.208.27.154 -all

📨 DMARC#

Policy	Record (_dmarc.altan.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:kw4mtjma@ag.eu.dmarcian.com; ruf=mailto:kw4mtjma@fr.eu.dmarcian.com; fo=1;

📬 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#

latest probe, not this scan · checked 2026-10-11 18:25:20

www	213.184.85.16 (AS59795) (address records, no CNAME)
www vs bare domain	Same network altan.dk: 213.184.85.16 (AS59795) www.altan.dk: 213.184.85.16 (AS59795)
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#

2 found

Selector	CNAME	Key
selector1	selector1-altan-dk._domainkey.altandk.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-altan-dk._domainkey.altandk.onmicrosoft.com	RSA · ~1024 bit below 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: 7/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

64ms

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

🏷️ SOA#

39ms

Field	Value
Serial	2026032001
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 2026-10-12 01:16:23

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-12-08
Expires	2027-12-31 (440d)

🔗 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
altandk.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

48ms

45ms

40ms

AAAA

44ms

TXT

147ms

CAA

43ms

HTTPS

46ms

TLSA

530ms

SOA

39ms

MTA-STS

41ms

DNSSEC

64ms

SRV

49ms

Total

1128ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 04:33:57	848ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 04:01:12	1770ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-28 11:45:21 shown	1128ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:44:27	1991ms	2 NS 1 A 1 MX	🔒 Secure