ulfborgfjernvarme.dk DNS records

🖥️ Nameservers2 records 34ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.50.64.13	3600s	—	AS8075	Microsoft Corporation	20.48.0.0/12	🇮🇪 Ireland	Dublin

📧 MX Records2 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.webexchange.nu	46.36.212.34 46.36.212.36 46.36.212.37 46.36.212.38 89.188.78.64 89.188.78.65 89.188.78.66 94.231.106.12	node4.spamfilter.io node8.spamfilter.io node6.spamfilter.io node7.spamfilter.io node3.spamfilter.io node9.spamfilter.io node10.spamfilter.io node2.spamfilter.io	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
20	3600s	mx2.webexchange.nu	46.36.212.34 46.36.212.36 46.36.212.37 46.36.212.38 89.188.78.64 89.188.78.65 89.188.78.66 94.231.106.12	node4.spamfilter.io node8.spamfilter.io node6.spamfilter.io node7.spamfilter.io node3.spamfilter.io node9.spamfilter.io node10.spamfilter.io node2.spamfilter.io	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscoverredirect.webexchange.nu → 46.36.209.50

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records6 records 135ms

TXT Record
_globalsign-domain-verification=oTLXAzA5jNexUAsq5mJWIxiiFGxvnTqmdPaLjsvOvx
+oCmtNuu7RYB9GJxNTul1TOIBLDHA0k8aHekPP6IL48=
CcaBKNfGmnDTT0JmWLEJrWNgLbvxcB7cB+2TGyz9phA=
qJiqTP8FIrhmO4igTSTo7+I1x5+GIwQOeN09RlCkwXM=
sPXP2e6RHt5Nt0UqMXcwhaM8qmUc/fFcVnTTA2kkaCY=
v=spf1 a include:spf.curanet.dk ~all

✉️ SPF

Policy	Record (ulfborgfjernvarme.dk)
~all (soft fail)	v=spf1 a include:spf.curanet.dk ~all

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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)

🔐 DNSSEC90ms

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

🏷️ SOA0ms

Field	Value
Serial	2026070701
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

34ms

A

43ms

MX

38ms

AAAA

31ms

TXT

135ms

CAA

57ms

HTTPS

33ms

TLSA

91ms

SOA

0ms

MTA-STS

64ms

DNSSEC

90ms

SRV

59ms

Total

694ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 21:13:19	694ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-08-26 17:49:57	582ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-07-09 00:19:29	9485ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-25 17:16:35	1030ms	2 NS 1 A 2 MX	🔒 Secure	View
2026-06-17 20:24:19	801ms	2 NS 1 A 2 MX	🔒 Secure	View