helsingefjernvarme.dk

📜 Historical scan 2026-06-20 03:24:06 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

helsingefjernvarme.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 23 July 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.50.2.76 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by helsingefjernvarme-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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#

2 records 103ms

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 Records#

1 records 98ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.50.2.76	3600s	—	AS8075	Microsoft Corporation	20.48.0.0/12	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 89ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	helsingefjernvarme-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::a 2a01:111:f403:ca04::c 2a01:111:f403:ca09::5 52.101.68.15 52.101.68.3 52.101.73.1 52.101.73.22	mail-db4pr02cu00406.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am7pr05cu00106.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 → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

5 records 225ms

TXT Record
+oCmtNuu7RYB9GJxNTul1TOIBLDHA0k8aHekPP6IL48
CcaBKNfGmnDTT0JmWLEJrWNgLbvxcB7cB+2TGyz9phA
qJiqTP8FIrhmO4igTSTo7+I1x5+GIwQOeN09RlCkwXM
sPXP2e6RHt5Nt0UqMXcwhaM8qmUc/fFcVnTTA2kkaCY
v=spf1 include:spf.protection.outlook.com include:mailservers.spf.servage.net ip4:77.232.68.17 -all

✉️ SPF#

Policy	Record (helsingefjernvarme.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:mailservers.spf.servage.net ip4:77.232.68.17 -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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 11:42:54

www	13.107.213.53 (AS8075) (address records, no CNAME)
www vs bare domain	Same network helsingefjernvarme.dk: 13.107.213.53 (AS8075) www.helsingefjernvarme.dk: 13.107.213.53 (AS8075)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector2	selector2-helsingefjernvarme-dk._domainkey.helsingefjernvarme.onmicrosoft.com	RSA · ~1024 bit below 2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

error include:mailservers.spf.servage.net has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

208ms

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

🏷️ SOA#

92ms

Field	Value
Serial	2026041302
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-09 12:09:04

Field	Value
Registrar	CURANET A/S
Registered	2004-07-23
Expires	2027-07-31 (282d)

📋 WHOIS#

⏱️ Lookup Timing#

103ms

98ms

89ms

AAAA

112ms

TXT

225ms

CAA

93ms

HTTPS

84ms

TLSA

133ms

SOA

92ms

MTA-STS

105ms

DNSSEC

208ms

SRV

282ms

Total

1142ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 11:42:54	1504ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 02:06:55	669ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 02:07:06	706ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 06:00:41	1071ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 03:24:06 shown	1142ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 11:15:01	937ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 11:13:39	960ms	2 NS 1 A 1 MX	🔒 Secure