fredericiafjernvarme.dk

Records from scan: 2026-10-08 02:07:52 · 388ms total · last checked 2026-10-19 21:49 (unchanged)

⬇ 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 13.107.246.53 is hosted by Microsoft Corporation (AS8075) in United States. 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 49ms

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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
13.107.246.53	3600s	—	AS8075	Microsoft Corporation	13.107.240.0/21	🇺🇸 United States	—

📧 MX Records#

2 records 39ms

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 130ms

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#

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#

80ms

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

🏷️ SOA#

42ms

Field	Value
Serial	2026092801
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#

49ms

40ms

39ms

AAAA

31ms

TXT

130ms

CAA

50ms

HTTPS

39ms

TLSA

65ms

SOA

42ms

MTA-STS

75ms

DNSSEC

80ms

SRV

69ms

Total

388ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 02:07:52 shown	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	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