gelstedfjernvarme.dk DNS records

🖥️ Nameservers2 records 42ms

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 40ms

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 Records1 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	gelstedfjernvarme-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::c 2a01:111:f403:ca38::8 2a01:111:f403:ca48::c 52.101.185.21 52.101.209.28 52.101.68.18 52.101.73.30	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records8 records 129ms

TXT Record
_globalsign-domain-verification=k-cv-R3yR8jmH6JBt4SE11qOpJWtq0Ugb1xVgjpiB2
_globalsign-domain-verification=T-CZbuU-y8A7Ahd5hnObCvTsT4SvM0O0wKsA2n9ZF-
+oCmtNuu7RYB9GJxNTul1TOIBLDHA0k8aHekPP6IL48
CcaBKNfGmnDTT0JmWLEJrWNgLbvxcB7cB+2TGyz9phA
MS=ms17585122
qJiqTP8FIrhmO4igTSTo7+I1x5+GIwQOeN09RlCkwXM
sPXP2e6RHt5Nt0UqMXcwhaM8qmUc/fFcVnTTA2kkaCY
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (gelstedfjernvarme.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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)

🔐 DNSSEC69ms

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

🏷️ SOA0ms

Field	Value
Serial	2026080501
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

42ms

A

40ms

MX

47ms

AAAA

35ms

TXT

129ms

CAA

55ms

HTTPS

38ms

TLSA

896ms

SOA

0ms

MTA-STS

62ms

DNSSEC

69ms

SRV

82ms

Total

1427ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-04 19:42:56	1427ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 17:43:29	3261ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 10:23:29	2581ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 22:29:45	3638ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 02:34:21	1169ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 09:24:43	732ms	2 NS 1 A 1 MX	🔒 Secure	View