tanktjek.dk

📜 Historical scan 2026-09-24 13:22:26  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tanktjek.dk is a .dk domain served by 2 nameservers (amit.ns.cloudflare.com, melissa.ns.cloudflare.com). It was registered on 20 March 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.80.179 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is DNSSEC-signed and validates, has no 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   36ms
NameserverIP addressesPTRASN / ISP
amit.ns.cloudflare.com 108.162.193.63
172.64.33.63
173.245.59.63
2606:4700:58::adf5:3b3f
2803:f800:50::6ca2:c13f
2a06:98c1:50::ac40:213f		 amit.ns.cloudflare.com
amit.ns.cloudflare.com
amit.ns.cloudflare.com
amit.ns.cloudflare.com
amit.ns.cloudflare.com
amit.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
melissa.ns.cloudflare.com 108.162.192.199
172.64.32.199
173.245.58.199
2606:4700:50::adf5:3ac7
2803:f800:50::6ca2:c0c7
2a06:98c1:50::ac40:20c7		 melissa.ns.cloudflare.com
melissa.ns.cloudflare.com
melissa.ns.cloudflare.com
melissa.ns.cloudflare.com
melissa.ns.cloudflare.com
melissa.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   35ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.80.179 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.152.182 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   34ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover104.21.80.179
🔶 Autoconfig104.21.80.179

🔷 AAAA Records (IPv6)#

2 records   36ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3031::6815:50b3 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3036::ac43:98b6 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   36ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.80.179,172.67.152.182 ech=AEX+DQBBqwAgACCNq4XxLhrI0tLTjjGB1pTcyJz1UaKcIwvO7N/wCdLZDwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:50b3,2606:4700:3036::ac43:98b6

📝 TXT Records#

3 records   196ms
TXT Record
[20.05.2026]
MS=ms45683932
v=spf1 include:spf.simply.com -all

✉️ SPF#

PolicyRecord (tanktjek.dk)
-all (hard fail) v=spf1 include:spf.simply.com -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#

latest probe, not this scan · checked 2026-10-19 04:25:38
www104.21.80.179 172.67.152.182 2606:4700:3031::6815:50b3 2606:4700:3036::ac43:98b6 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

2 records   65ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC#

109ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2415671357
Primary NS (MNAME)amit.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-13 03:13:46
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2025-03-20
Expires2027-03-19 (144d)

🔗 Same registrant#

7 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).

DomainRegistrar
boligkvarter.dkPunktum dk A/S (direct)
carlsoe.dkPunktum dk A/S (direct)
hjemid.dkPunktum dk A/S (direct)
hjemide.dkPunktum dk A/S (direct)
humlebi.dkPunktum dk A/S (direct)
mkb.dkPunktum dk A/S (direct)
sundhedsplanen.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
36ms
A
35ms
MX
34ms
AAAA
36ms
TXT
196ms
CAA
41ms
HTTPS
36ms
TLSA
65ms
SOA
0ms
MTA-STS
55ms
DNSSEC
109ms
SRV
72ms
Total
745ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-19 04:25:38 1313ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-30 06:24:48 605ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-24 13:22:26 shown 745ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-16 16:09:26 1154ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-05 04:34:09 583ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-01 04:21:52 673ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-28 06:35:55 905ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-24 18:22:29 755ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-23 16:39:38 3116ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-18 11:51:04 16971ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-06 23:21:01 1010ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-14 09:54:27 2879ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-08 18:46:00 1070ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-25 03:43:45 922ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-21 06:14:05 630ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-20 14:00:51 3752ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-18 00:26:28 765ms 2 NS 2 A 1 MX 🔒 Secure
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