0x7f.dk

📜 Historical scan 2026-06-24 22:25:45  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

0x7f.dk is a .dk domain served by 2 nameservers (alec.ns.cloudflare.com, pat.ns.cloudflare.com). It was registered on 16 May 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.16.155 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.0x7f.dk. 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   8ms
NameserverIP addressesPTRASN / ISP
alec.ns.cloudflare.com 108.162.193.59
172.64.33.59
173.245.59.59
2606:4700:58::adf5:3b3b
2803:f800:50::6ca2:c13b
2a06:98c1:50::ac40:213b		 alec.ns.cloudflare.com
alec.ns.cloudflare.com
alec.ns.cloudflare.com
alec.ns.cloudflare.com
alec.ns.cloudflare.com
alec.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
pat.ns.cloudflare.com 108.162.192.139
172.64.32.139
173.245.58.139
2606:4700:50::adf5:3a8b
2803:f800:50::6ca2:c08b
2a06:98c1:50::ac40:208b		 pat.ns.cloudflare.com
pat.ns.cloudflare.com
pat.ns.cloudflare.com
pat.ns.cloudflare.com
pat.ns.cloudflare.com
pat.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   48ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.16.155 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.213.171 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   8ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx.0x7f.dk 116.202.105.157
2a01:4f8:c013:bc40::25		 mx.0x7f.dk
mx.0x7f.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH

🔷 AAAA Records (IPv6)#

2 records   8ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3035::ac43:d5ab 300s — AS13335 Cloudflare, Inc. 2606:4700:3000::/42 — —
2606:4700:3037::6815:109b 300s — AS13335 Cloudflare, Inc. 2606:4700:3000::/42 — —

🔐 HTTPS Records#

1 records   31ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.16.155,172.67.213.171 ech=AEX+DQBB9gAgACCuVMzIWBN1MOubdQaeIsAx8bn5QJxBEujBmZj3mNDSJAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:d5ab,2606:4700:3037::6815:109b

📝 TXT Records#

1 records   76ms
TXT Record
v=spf1 include:spf.0x7f.dk ~all

✉️ SPF#

PolicyRecord (0x7f.dk)
~all (soft fail) v=spf1 include:spf.0x7f.dk ~all

📨 DMARC#

PolicyRecord (_dmarc.0x7f.dk)
p=quarantine v=DMARC1; p=quarantine; pct=100; rua=mailto:e65a6fc6@in.mailhardener.com; ruf=mailto:e65a6fc6@in.mailhardener.com

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

StatusReport address (rua)
✓ Enabled mailto:e65a6fc6@in.mailhardener.com

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 11:55:59
www104.21.16.155 172.67.213.171 2606:4700:3031::6815:109b 2606:4700:3033::ac43:d5ab (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
dkim — RSA · ~4096 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#

1 records   75ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.0x7f.dk DANE-EE · SPKI · SHA-256 DEB7CC36CED3A151804FC2666448DF3A…

🔐 DNSSEC#

186ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated
Key typeAlgorithmPublic key
KSK ECDSA P-256/SHA-256 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopK…
ZSK ECDSA P-256/SHA-256 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XN…

🏷️ SOA#

0ms
FieldValue
Serial2407300703
Primary NS (MNAME)alec.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-11 23:56:44
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2025-05-16
Expires2027-05-15 (210d)

🔗 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).

DomainRegistrar
tue-jensen.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
8ms
A
48ms
MX
8ms
AAAA
8ms
TXT
76ms
CAA
48ms
HTTPS
31ms
TLSA
75ms
SOA
0ms
MTA-STS
55ms
DNSSEC
186ms
SRV
0ms
Total
2503ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-03 01:40:15 988ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-28 00:44:29 1288ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-24 07:56:31 1199ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-20 18:53:26 1172ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-11 01:41:46 2359ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-03 23:10:23 543ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-27 09:25:14 1142ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-26 22:38:04 1141ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-25 14:57:18 2080ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-24 13:10:42 1862ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-18 07:03:31 4020ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-16 20:42:31 5110ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-23 10:58:50 9030ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-06 14:39:38 1366ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-01 21:07:53 1426ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-24 22:25:45 shown 2503ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-24 16:11:21 5222ms 2 NS 2 A 1 MX ⚠️ Bogus
2026-06-24 07:40:37 1151ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-23 13:27:28 964ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 15:07:36 1320ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-16 12:33:31 1465ms 2 NS 2 A 1 MX 🔒 Secure
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