lb3.dk

📜 Historical scan 2026-06-22 05:33:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

lb3.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 12 July 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.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 57ms

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 48ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.88	3600s	linux210.unoeuro.com	AS48854	—	—	—	—

📧 MX Records#

2 records 62ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1-dk.centerasecurity.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.127 89.233.19.188 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk 127.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 188.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
10	3600s	mx2-dk.centerasecurity.dk	128.76.60.168 128.76.60.169 89.233.19.128 89.233.19.128 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk mx6.centerasecurity.dk 128.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco 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 219ms

TXT Record
MS=ms59847392
v=spf1 include:_spf14500.spfprotect.com -all

✉️ SPF#

Policy	Record (lb3.dk)
-all (hard fail)	v=spf1 include:_spf14500.spfprotect.com -all

📨 DMARC#

Policy	Record (_dmarc.lb3.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:639c57a44f3a2@dmarc.centerasecurity.com; fo=1

📬 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 2026-10-12 19:45:50

www	93.191.156.88 (AS48854) (address records, no CNAME)
www vs bare domain	Same network lb3.dk: 93.191.156.88 (AS48854) www.lb3.dk: 93.191.156.88 (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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

4 records 2065ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…

🔐 DNSSEC#

117ms

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

🏷️ SOA#

48ms

Field	Value
Serial	2023020202
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 2026-10-09 22:53:43

Field	Value
Registrar	Simply.com A/S
Registered	2006-07-12
Expires	2027-07-31 (286d)

📋 WHOIS#

⏱️ Lookup Timing#

57ms

48ms

62ms

AAAA

48ms

TXT

219ms

CAA

44ms

HTTPS

42ms

TLSA

2065ms

SOA

48ms

MTA-STS

57ms

DNSSEC

117ms

SRV

2086ms

Total

4542ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 19:45:50	528ms	4 NS 1 A 2 MX	🔒 Secure
2026-10-01 02:54:51	1519ms	4 NS 1 A 2 MX	🔒 Secure
2026-09-30 02:38:58	486ms	4 NS 1 A 2 MX	🔒 Secure
2026-07-23 06:56:33	1614ms	4 NS 1 A 2 MX	🔒 Secure
2026-07-20 21:35:52	10117ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-07-19 01:57:57	1591ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-07-17 22:07:43	6339ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-07-16 19:00:37	1699ms	4 NS 0 A 0 MX	⚠️ Bogus
2026-06-24 12:50:40	844ms	4 NS 1 A 2 MX	🔒 Secure
2026-06-22 05:33:33 shown	4542ms	4 NS 1 A 2 MX	🔒 Secure
2026-06-22 02:12:05	1185ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 21:39:49	2965ms	4 NS 1 A 2 MX	🔒 Secure