tdcner.dk

📜 Historical scan 2026-09-02 11:43:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tdcner.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.249.40.66 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mail.mailfilter.dk. The zone is not DNSSEC-signed, publishes a 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#

4 records 63ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records#

1 records 68ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.249.40.66	3600s	mail.mailfilter.dk	AS3292	TDC Holding A/S	195.249.0.0/16	🇩🇰 Denmark	Aarhus

📧 MX Records#

1 records 69ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mail.mailfilter.dk	195.249.40.66	mail.mailfilter.dk	AS3292 TDC Holding A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 311ms

TXT Record
v=spf1 include:_spf.mailfilter.dk -all

✉️ SPF#

Policy	Record (tdcner.dk)
-all (hard fail)	v=spf1 include:_spf.mailfilter.dk -all

📨 DMARC#

Policy	Record (_dmarc.tdcner.dk)
p=reject	v=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:cv1zdpyr@ag.eu.dmarcian.com; ruf=mailto:cv1zdpyr@fr.eu.dmarcian.com;

📬 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 02:20:59

www	Exists, no address
www vs bare domain	www does not resolve tdcner.dk: 195.249.40.66 (AS3292) www.tdcner.dk: no address (all like this)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
s1	s1._domainkey.mailfilter.dk	RSA · ~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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9081ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2026021000
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

63ms

68ms

69ms

AAAA

47ms

TXT

311ms

CAA

68ms

HTTPS

74ms

TLSA

90ms

SOA

0ms

MTA-STS

83ms

DNSSEC

9081ms

SRV

98ms

Total

9501ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 23:49:38	599ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-16 00:15:10	1534ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-02 11:43:17 shown	9501ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-30 02:51:57	911ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-17 11:41:16	863ms	4 NS 1 A 1 MX	🔓 Insecure