tack.dk

📜 Historical scan 2026-08-28 00:56:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tack.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.31.76.149 is hosted by DLX A/S (AS47527) in Denmark. Mail is handled by tack-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 27ms

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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.31.76.149	3600s	prod49.magentohotel.dk	AS47527	DLX A/S	185.31.76.0/22	🇩🇰 Denmark	Herning

📧 MX Records#

1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	tack-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::2 2a01:111:f403:ca04::9 2a01:111:f403:ca09::9 52.101.68.15 52.101.68.36 52.101.73.15 52.101.73.4	mail-db7pr03cu00401.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.8
🔶 Autoconfig	185.31.76.149

🔷 AAAA Records (IPv6)#

1 records 23ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a00:b920:2:1337::149	3600s	prod49.magentohotel.dk	AS47527	DLX A/S	2a00:b920:0:0:0:0:0:0/29	🇩🇰 Denmark	Herning

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 135ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:_spf.powerhosting.dk include:spf.mailanyone.net include:one.zoho.eu include:zcsend.eu include:eu.transmail.net -all

✉️ SPF#

Policy	Record (tack.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf.powerhosting.dk include:spf.mailanyone.net include:one.zoho.eu include:zcsend.eu include:eu.transmail.net -all

📨 DMARC#

Policy	Record (_dmarc.tack.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:6597c839d86ee@dmarc-dk.centerasecurity.com;

📬 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 2026-10-07 20:18:23

www	185.31.76.149 2a00:b920:2:1337::149 (AS47527) (address records, no CNAME)
www vs bare domain	Same network tack.dk: 185.31.76.149 2a00:b920:2:1337::149 (AS47527) www.tack.dk: 185.31.76.149 2a00:b920:2:1337::149 (AS47527)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

4 found

Selector	CNAME	Key
dkim	ph._domainkey.powerhosting.dk	RSA · ~1024 bit below 2048 bit
s1	s1.domainkey.u1998947.wl198.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u1998947.wl198.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-tack-dk._domainkey.tack.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: 9/10 · policy: -all

warn 9 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

99ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026082701
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

27ms

35ms

32ms

AAAA

23ms

TXT

135ms

CAA

28ms

HTTPS

36ms

TLSA

297ms

SOA

0ms

MTA-STS

39ms

DNSSEC

99ms

SRV

51ms

Total

795ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 20:18:23	1053ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 12:56:32	1345ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 05:16:31	1278ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 02:13:09	1581ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-02 10:51:52	966ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 00:56:39 shown	795ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 23:10:28	1240ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-24 19:30:04	2034ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-20 10:12:37	3952ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-14 13:45:50	1848ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 01:41:52	1927ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 17:58:04	2647ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 04:27:46	1135ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 02:21:20	1954ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-19 19:25:34	2608ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 15:25:31	772ms	2 NS 1 A 1 MX	🔒 Secure