0xd.dk

📜 Historical scan 2026-08-02 18:18:53  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

0xd.dk is a .dk domain served by 2 nameservers (clark.ns.cloudflare.com, pearl.ns.cloudflare.com). It was registered on 16 January 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.56.23 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.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   152ms

🌍 A Records#

2 records   188ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.56.23 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.175.253 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   196ms
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
🔶 Autoconfigmaildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

2 records   163ms

🔐 HTTPS Records#

1 records   165ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.56.23,172.67.175.253 ech=AEX+DQBBhAAgACA7IUdWGtVRzAkXacnArXTe+in/W1MhIOe2yzU3sPIgZQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:affd,2606:4700:3037::6815:3817

📝 TXT Records#

1 records   377ms
TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF#

PolicyRecord (0xd.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all

📨 DMARC#

PolicyRecord (_dmarc.0xd.dk)
p=reject v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.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 2026-10-11 20:16:37
www104.21.56.23 172.67.175.253 2606:4700:3030::ac43:affd 2606:4700:3037::6815:3817 (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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

2 records   236ms
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#

258ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✓ Found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2411087223
Primary NS (MNAME)clark.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-01 07:58:47
FieldValue
RegistrarSimply.com A/S
Registered2026-01-16
Expires2027-01-15 (90d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
152ms
A
188ms
MX
196ms
AAAA
163ms
TXT
377ms
CAA
145ms
HTTPS
165ms
TLSA
236ms
SOA
0ms
MTA-STS
215ms
DNSSEC
258ms
SRV
226ms
Total
2475ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-11 20:16:37 1292ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-01 07:42:33 822ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-30 07:26:39 763ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-23 01:27:18 975ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-04 11:17:17 544ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-27 21:00:52 1001ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-27 02:44:03 1064ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-26 02:04:07 960ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-20 08:42:32 6249ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-02 18:18:53 shown 2475ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-08 21:42:36 902ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-06 23:56:23 1158ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-28 00:49:12 1464ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-23 23:03:16 883ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-16 12:33:45 4553ms 0 NS 2 A 0 MX 🔓 Insecure
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