post-online.dk

Records from scan: 2026-10-13 01:30:58  ·  420ms total  ·  last checked 2026-10-21 09:02 (unchanged)
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

post-online.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 3 August 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.11 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mail.post-online.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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#

4 records   36ms
NameserverIP addressesPTRASN / ISP
ns1.simply.com 2a02:2339:1:15c::4562:4562
91.197.248.78		 ns1.simply.com
ns1.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.simply.com 185.25.141.15
2a02:2339:4006:101::4562:4562		 ns2.simply.com
ns2.simply.com		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns3.simply.com 91.197.248.79 ns3.simply.com AS48854 team.blue Denmark A/S
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   39ms
IPTTLPTRASNISP / OrgCIDRCountryCity
185.21.41.11 3600s vm1534.enterprisecloud.nu AS48854 team.blue Denmark A/S 185.21.40.0/22 🇩🇰 Denmark —

📧 MX Records#

1 records   31ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.post-online.dk 185.21.41.17 mail.post-online.dk AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   148ms
TXT Record
google-site-verification=21Iu_CNZlc4sMg6D-3znUkXhL9_coqNdWlOEyZhHAFA
v=spf1 ip4:185.21.41.13 ip4:185.21.41.14 ip4:185.21.41.17 ip4:185.21.41.20 ip4:185.21.41.21 -all

✉️ SPF#

PolicyRecord (post-online.dk)
-all (hard fail) v=spf1 ip4:185.21.41.13 ip4:185.21.41.14 ip4:185.21.41.17 ip4:185.21.41.20 ip4:185.21.41.21 -all

📨 DMARC#

PolicyRecord (_dmarc.post-online.dk)
p=quarantine v=DMARC1; p=quarantine; rua=mailto:dmarc@mail.world; ruf=mailto:dmarc@mail.world; pct=100; fo=0:1:d:s;

📬 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 2026-10-13 01:30:58
www185.21.41.11 (AS48854) (address records, no CNAME)
www vs bare domainSame network
post-online.dk: 185.21.41.11 (AS48854)
www.post-online.dk: 185.21.41.11 (AS48854)
WildcardNo
Denial of existenceNSEC zone can be walked (all names enumerable)
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: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

71ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

31ms
FieldValue
Serial2026101200
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-13 01:54:50
FieldValue
RegistrarSimply.com A/S
Registered2026-08-03
Expires2027-08-02 (284d)

🔗 Same registrant#

7 domains

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
bodyscan.dkDANDOMAIN A/S
cv-online.dkPunktum dk A/S (direct)
emagasin1.dkDANDOMAIN A/S
ioservices.dkPunktum dk A/S (direct)
job-online.dkDANDOMAIN A/S
jobonline.dkDANDOMAIN A/S
mereinfo.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
36ms
A
39ms
MX
31ms
AAAA
58ms
TXT
148ms
CAA
41ms
HTTPS
27ms
TLSA
55ms
SOA
31ms
MTA-STS
43ms
DNSSEC
71ms
SRV
57ms
Total
420ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 01:30:58 shown 420ms 4 NS 1 A 1 MX 🔒 Secure
2026-10-02 15:49:20 433ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-30 15:27:42 777ms 4 NS 1 A 1 MX 🔒 Secure
2026-09-24 06:34:00 531ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-16 22:53:25 3185ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-14 21:14:08 665ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-05 23:10:43 794ms 4 NS 1 A 1 MX 🔒 Secure
2026-07-27 18:33:07 2697ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-26 18:20:58 659ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-25 18:01:52 650ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-24 17:18:43 616ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-23 15:56:40 660ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-22 11:39:08 824ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-20 14:29:46 707ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-19 13:05:47 755ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-18 10:59:44 1383ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-17 09:08:56 783ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-15 04:36:26 672ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-12 23:31:52 687ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-11 00:47:37 579ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-09 21:43:42 9717ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-08 17:14:10 898ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-07 00:40:58 742ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-05 23:05:48 794ms 1 NS 0 A 0 MX ❓ Unknown
2026-07-04 11:04:36 1006ms 1 NS 0 A 0 MX ❓ Unknown
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