post-online.dk

📜 Historical scan 2026-08-14 21:14:08 · ← Latest scan

⬇ 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 42ms

Nameserver	IP addresses	PTR	ASN / 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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.11	3600s	vm1534.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.post-online.dk	185.21.41.17	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 141ms

TXT Record
google-site-verification=21Iu_CNZlc4sMg6D-3znUkXhL9_coqNdWlOEyZhHAFA
v=spf1 ip4:185.21.41.11 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#

Policy	Record (post-online.dk)
-all (hard fail)	v=spf1 ip4:185.21.41.11 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#

Policy	Record (_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#

latest probe, not this scan · checked 2026-10-13 01:30:58

www	185.21.41.11 (AS48854) (address records, no CNAME)
www vs bare domain	Same network post-online.dk: 185.21.41.11 (AS48854) www.post-online.dk: 185.21.41.11 (AS48854)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: 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#

88ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2026081304
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-13 01:54:50

Field	Value
Registrar	Simply.com A/S
Registered	2026-08-03
Expires	2027-08-02 (283d)

🔗 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).

Domain	Registrar
bodyscan.dk	DANDOMAIN A/S
cv-online.dk	Punktum dk A/S (direct)
emagasin1.dk	DANDOMAIN A/S
ioservices.dk	Punktum dk A/S (direct)
job-online.dk	DANDOMAIN A/S
jobonline.dk	DANDOMAIN A/S
mereinfo.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

37ms

46ms

AAAA

42ms

TXT

141ms

CAA

47ms

HTTPS

40ms

TLSA

53ms

SOA

0ms

MTA-STS

60ms

DNSSEC

88ms

SRV

125ms

Total

665ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 01:30:58	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 shown	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