under37.dk

Records from scan: 2026-10-09 10:52:49  ·  1583ms total  ·  last checked 2026-10-17 00:38 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

under37.dk is a .dk domain served by 2 nameservers (etta.ns.cloudflare.com, junade.ns.cloudflare.com). It was registered on 18 August 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.31.3 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by under37-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   41ms

🌍 A Records#

2 records   38ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.31.3 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.174.65 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   44ms

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover172.67.174.65

🔷 AAAA Records (IPv6)#

2 records   40ms

🔐 HTTPS Records#

1 records   37ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.31.3,172.67.174.65 ech=AEX+DQBB8gAgACCIZ8uQXidaAaC48rHXa9UK3cXHkpyHTn9GHoptCod4GAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:1f03,2606:4700:3035::ac43:ae41

📝 TXT Records#

2 records   168ms
TXT Record
MS=ms56609066
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

PolicyRecord (under37.dk)
-all (hard fail) v=spf1 include:spf.protection.outlook.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#

checked 2026-10-09 10:52:49

🔎 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#

58ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

35ms
FieldValue
Serial2416611121
Primary NS (MNAME)etta.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-05 06:28:21
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2022-08-18
Expires2027-08-17 (303d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
41ms
A
38ms
MX
44ms
AAAA
40ms
TXT
168ms
CAA
40ms
HTTPS
37ms
TLSA
641ms
SOA
35ms
MTA-STS
46ms
DNSSEC
58ms
SRV
65ms
Total
1583ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-09 10:52:49 shown 1583ms 2 NS 2 A 1 MX 🔓 Insecure
2026-10-05 05:57:15 2568ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-26 04:09:04 1782ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-07 12:42:15 2202ms 2 NS 2 A 1 MX 🔓 Insecure
2026-07-28 00:05:34 8917ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-25 23:06:40 5558ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-22 20:43:43 986ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-19 17:17:35 1404ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-15 02:21:52 8960ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-27 00:36:58 1538ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-26 17:36:40 668ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-17 15:51:42 3566ms 2 NS 1 A 1 MX 🔒 Secure
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