tankmar.dk

📜 Historical scan 2026-09-24 11:13:58 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tankmar.dk is a .dk domain served by 2 nameservers (donald.ns.cloudflare.com, lisa.ns.cloudflare.com). It was registered on 31 March 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.95.247 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by tankmar-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 34ms

Nameserver	IP addresses	PTR	ASN / ISP
donald.ns.cloudflare.com	108.162.193.158 172.64.33.158 173.245.59.158 2606:4700:58::adf5:3b9e 2803:f800:50::6ca2:c19e 2a06:98c1:50::ac40:219e	donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lisa.ns.cloudflare.com	108.162.192.131 172.64.32.131 173.245.58.131 2606:4700:50::adf5:3a83 2803:f800:50::6ca2:c083 2a06:98c1:50::ac40:2083	lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 31ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.95.247	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.149.221	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	tankmar-dk.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::d 2a01:111:f403:ca21::8 2a01:111:f403:ca48::e 52.101.103.143 52.101.181.153 52.101.68.10 52.101.68.15	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-miypr03cu00206.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db6pr03cu00107.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
🔶 Autoconfig	172.67.149.221

🔷 AAAA Records (IPv6)#

2 records 29ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:5ff7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:95dd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 35ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.95.247,172.67.149.221 ech=AEX+DQBBuwAgACCcwq/zmIf69cFFmwR/sEy42+TBTUSEoAthbabDgYjkAAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5ff7,2606:4700:3036::ac43:95dd

📝 TXT Records#

1 records 174ms

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

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.tankmar.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:3548c9709a064e6cbc729ea50bdfe450@dmarc-reports.cloudflare.net

📬 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 2026-10-08 16:38:47

www	104.21.95.247 172.67.149.221 2606:4700:3030::6815:5ff7 2606:4700:3036::ac43:95dd (AS13335) (address records, no CNAME)
www vs bare domain	Same network tankmar.dk: 104.21.95.247 172.67.149.221 2606:4700:3030::6815:5ff7 2606:4700:3036::ac43:95dd (AS13335) www.tankmar.dk: 104.21.95.247 172.67.149.221 2606:4700:3030::6815:5ff7 2606:4700:3036::ac43:95dd (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY
BIMI	v=BIMI1; l=https://tankmar.dk/wp-content/uploads/2026/08/tankmar-monogram-bimi.svg

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-tankmar-dk._domainkey.sappro.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-tankmar-dk._domainkey.sappro.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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

103ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2415655286
Primary NS (MNAME)	donald.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-19 13:27:46

Field	Value
Registrar	Simply.com A/S
Registered	2004-03-31
Expires	2032-03-31 (1989d)

🔗 Same registrant#

2 domains

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
bjerring-partners.dk	Simply.com A/S
fromolsen.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

34ms

31ms

33ms

AAAA

29ms

TXT

174ms

CAA

35ms

HTTPS

35ms

TLSA

180ms

SOA

0ms

MTA-STS

55ms

DNSSEC

103ms

SRV

59ms

Total

856ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 12:02:45	1628ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 11:13:58 shown	856ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 11:04:40	966ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-08 09:45:41	900ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-24 14:16:43	4768ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-14 18:34:36	7544ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-06 20:39:01	2198ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-25 23:55:26	2406ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-22 21:14:35	11190ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-28 02:26:57	1434ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 15:07:51	1330ms	2 NS 2 A 1 MX	❓ Unknown