post-it.dk
Last scanned: 2026-08-13 18:44:04  ·  1631ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   237ms
NameserverIP addressesPTRASN / ISP
a.ns.3m.com 162.159.8.174
2400:cb00:2049:1::a29f:8ae		 —
—		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
b.ns.3m.com 173.245.58.19
2400:cb00:2049:1::adf5:3a13		 —
—		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
🌍 A Records2 records   258ms
IPTTLPTRASNISP / OrgCIDRCountryCity
3.136.118.106 60s ec2-3-136-118-106.us-east-2.compute.amazonaws.com AS16509 Amazon.com, Inc. 3.128.0.0/10 🇺🇸 United States Columbus
3.148.57.201 60s ec2-3-148-57-201.us-east-2.compute.amazonaws.com AS16509 Amazon.com, Inc. 3.128.0.0/10 🇺🇸 United States Columbus
📧 MX Records
📧
No MX records found
🔷 AAAA Records (IPv6)
✗ No AAAA records — IPv6 not configured
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   642ms
TXT Record
v=spf1 -all
✉️ SPF
PolicyRecord (post-it.dk)
-all (hard fail) v=spf1 -all
📨 DMARC
PolicyRecord (_dmarc.post-it.dk)
p=reject v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.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
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC523ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2412076846
Primary NS (MNAME)a.ns.3m.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
237ms
A
258ms
MX
293ms
AAAA
230ms
TXT
642ms
CAA
199ms
HTTPS
238ms
TLSA
127ms
SOA
0ms
MTA-STS
349ms
DNSSEC
523ms
SRV
314ms
Total
1631ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-13 18:44:04 1631ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-07-20 12:17:17 703ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-26 05:21:11 2030ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-25 01:37:37 2855ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-23 13:47:07 1027ms 0 NS 0 A 0 MX ❓ Unknown View
2026-06-19 21:25:46 757ms 2 NS 2 A 0 MX 🔓 Insecure View
2026-06-17 14:38:19 1408ms 2 NS 2 A 0 MX 🔓 Insecure View
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