fredericiafjernvarme.dk

📜 Historical scan 2026-06-23 04:04:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fredericiafjernvarme.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.50.64.13 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by mailfilter.onwelcom.dk, mx2.onwelcom.dk. 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 137ms

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 199ms

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 Records#

2 records 127ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mailfilter.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps
20	3600s	mx2.onwelcom.dk	185.51.79.248	mailfilter.powernet.dk	AS205984 Powernet Aps

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 619ms

TXT Record
+oCmtNuu7RYB9GJxNTul1TOIBLDHA0k8aHekPP6IL48
CcaBKNfGmnDTT0JmWLEJrWNgLbvxcB7cB+2TGyz9phA
qJiqTP8FIrhmO4igTSTo7+I1x5+GIwQOeN09RlCkwXM
sPXP2e6RHt5Nt0UqMXcwhaM8qmUc/fFcVnTTA2kkaCY

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-08 02:07:52

www	13.107.246.53 (AS8075) (address records, no CNAME)
www vs bare domain	Same network fredericiafjernvarme.dk: 13.107.246.53 (AS8075) www.fredericiafjernvarme.dk: 13.107.246.53 (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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

481ms

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

🏷️ SOA#

150ms

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#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

137ms

199ms

127ms

AAAA

286ms

TXT

619ms

CAA

120ms

HTTPS

112ms

TLSA

386ms

SOA

150ms

MTA-STS

258ms

DNSSEC

481ms

SRV

335ms

Total

1737ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 02:07:52	388ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-28 23:35:30	741ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-25 22:40:04	480ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-12 11:21:01	601ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-23 04:04:34 shown	1737ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-22 16:02:07	920ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 09:44:54	549ms	2 NS 1 A 2 MX	🔒 Secure