ibsen.dk DNS records

🖥️ Nameservers2 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records1 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.47.247.18	3600s	one.com.webforward.g1i.one	AS51468	One.com A/S	195.47.247.0/24	—	—

📧 MX Records3 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	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 Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S
10	600s	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 Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S
20	600s	mx3-dk.centerasecurity.dk	128.76.60.187 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3308 Norlys Digital A/S AS3308 Norlys Digital A/S

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 192ms

TXT Record
v=spf1 ip4:77.66.83.210 include:spf.comendosystems.com include:mailanyone.net include:spf.simply.com include:_spf.centerasecurity.dk -all

✉️ SPF

Policy	Record (ibsen.dk)
-all (hard fail)	v=spf1 ip4:77.66.83.210 include:spf.comendosystems.com include:mailanyone.net include:spf.simply.com include:_spf.centerasecurity.dk -all

📨 DMARC

Policy	Record (_dmarc.ibsen.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@ibsen.dk; ruf=mailto:dmarc-reports@ibsen.dk; sp=none

📬 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 / DANE6 records 79ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx3-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…

🔐 DNSSEC152ms

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

🏷️ SOA0ms

Field	Value
Serial	2026090101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

42ms

A

38ms

MX

45ms

AAAA

87ms

TXT

192ms

CAA

59ms

HTTPS

67ms

TLSA

79ms

SOA

0ms

MTA-STS

87ms

DNSSEC

152ms

SRV

108ms

Total

908ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-04 05:31:36	908ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-26 11:36:22	747ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-17 15:00:49	3802ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-12 02:02:00	4971ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-08-05 20:18:58	1339ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-07-25 18:25:48	25033ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-07-21 02:14:34	5143ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-07-13 10:39:47	5171ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-23 04:40:18	999ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-23 01:07:45	1176ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 22:25:01	711ms	2 NS 1 A 3 MX	🔒 Secure	View
2026-06-17 13:00:14	990ms	2 NS 1 A 3 MX	🔒 Secure	View