dder.dk

📜 Historical scan 2026-08-06 18:51:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dder.dk is a .dk domain served by 2 nameservers (ns3.hostworld.dk, ns4.hostworld.dk). It was registered on 18 October 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.160.220.14 is hosted by IONOS SE (AS8560) in Germany. Mail is handled by dder.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 66ms

Nameserver	IP addresses	PTR	ASN / ISP
ns3.hostworld.dk	217.160.222.205 2a02:247a:256:2c00:1::1	ip217.160.222.205.pbiaas.com ns3.hostworld.dk	AS8560 IONOS SE AS8560 IONOS SE
ns4.hostworld.dk	217.160.220.14 2a02:247a:256:2c00::1	ip217-160-220-14.pbiaas.com hostworld.dk	AS8560 IONOS SE AS8560 IONOS SE

🌍 A Records#

1 records 59ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
217.160.220.14	600s	ip217-160-220-14.pbiaas.com	AS8560	IONOS SE	217.160.0.0/16	🇩🇪 Germany	—

📧 MX Records#

1 records 66ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	dder.dk	217.160.220.14 2a02:247a:256:2c00::1	ip217-160-220-14.pbiaas.com hostworld.dk	AS8560 IONOS SE AS8560 IONOS SE

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	217.160.220.14
🔶 Autoconfig	217.160.220.14

🔷 AAAA Records (IPv6)#

1 records 49ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:247a:256:2c00::1	600s	hostworld.dk	AS8560	IONOS SE	2a02:2478:0:0:0:0:0:0/29	🇩🇪 Germany	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 87ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	cpanelemaildiscovery.cpanel.net

📝 TXT Records#

1 records 255ms

TXT Record
v=spf1 +a +mx +ip4:217.160.220.14 +ip4:139.162.165.153 ~all

✉️ SPF#

Policy	Record (dder.dk)
~all (soft fail)	v=spf1 +a +mx +ip4:217.160.220.14 +ip4:139.162.165.153 ~all

📨 DMARC#

Policy	Record (_dmarc.dder.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-10 15:10:41

www CNAME	dder.dk (all on dder.dk) → 217.160.220.14 2a02:247a:256:2c00::1 (AS8560)
www vs bare domain	Same network dder.dk: 217.160.220.14 2a02:247a:256:2c00::1 (AS8560) www.dder.dk: 217.160.220.14 2a02:247a:256:2c00::1 (AS8560)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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: 2/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.dder.dk	zR1SAufSnGnuyFE4jB5j9Y8wfCvedqeGdbFH9fvJhNo

🔗 TLSA / DANE#

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

🔐 DNSSEC#

2075ms

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	2026080401
Primary NS (MNAME)	ns3.hostworld.dk
Responsible (RNAME)	service@lignum.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-05 02:26:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2013-10-18
Expires	2027-10-31 (379d)

📋 WHOIS#

⏱️ Lookup Timing#

66ms

59ms

66ms

AAAA

49ms

TXT

255ms

CAA

55ms

HTTPS

63ms

TLSA

411ms

SOA

0ms

MTA-STS

91ms

DNSSEC

2075ms

SRV

87ms

Total

2991ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 01:40:50	986ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-01 01:06:34	774ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-24 10:23:47	9616ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 18:23:05	1068ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-06 18:51:59 shown	2991ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-29 13:37:36	726ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 01:15:11	2102ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 01:23:17	425ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 01:21:07	601ms	2 NS 1 A 1 MX	🔓 Insecure