0x7f.dk

📜 Historical scan 2026-08-26 22:38:04  ·  ← 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   27ms
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   32ms
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   29ms
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

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscovermx.0x7f.dk → 116.202.105.157
🔶 Autoconfigmx.0x7f.dk → 116.202.105.157

🔷 AAAA Records (IPv6)#

2 records   30ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3031::6815:109b 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3033::ac43:d5ab 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   27ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.16.155,172.67.213.171 ech=AEX+DQBB+AAgACATcv+fK+Ptu0/bpXpp0D1wcGbigahtqny0PH7xycqfNwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:109b,2606:4700:3033::ac43:d5ab

🔌 SRV Records#

1 records   54ms
ServicePriorityWeightPortTarget
_autodiscover._tcp 0 0 443 mx.0x7f.dk

📝 TXT Records#

1 records   134ms
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   51ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.0x7f.dk DANE-EE · SPKI · SHA-256 DEB7CC36CED3A151804FC2666448DF3A…

🔐 DNSSEC#

100ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2413226389
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
27ms
A
32ms
MX
29ms
AAAA
30ms
TXT
134ms
CAA
23ms
HTTPS
27ms
TLSA
51ms
SOA
0ms
MTA-STS
43ms
DNSSEC
100ms
SRV
54ms
Total
1141ms

🕐 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 shown 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 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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