ndum.dk

📜 Historical scan 2026-09-26 06:46:22 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ndum.dk is a .dk domain served by 4 nameservers (ns-1033.awsdns-01.org, ns-116.awsdns-14.com, ns-1920.awsdns-48.co.uk and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx.sandum.net. The zone is DNSSEC-signed and validates, 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 35ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1033.awsdns-01.org	205.251.196.9 2600:9000:5304:900::1	ns-1033.awsdns-01.org ns-1033.awsdns-01.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-116.awsdns-14.com	205.251.192.116 2600:9000:5300:7400::1	ns-116.awsdns-14.com ns-116.awsdns-14.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1920.awsdns-48.co.uk	205.251.199.128 2600:9000:5307:8000::1	ns-1920.awsdns-48.co.uk ns-1920.awsdns-48.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-816.awsdns-38.net	205.251.195.48 2600:9000:5303:3000::1	ns-816.awsdns-38.net ns-816.awsdns-38.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mx.sandum.net	185.107.14.94	casa.sandum.dk	AS204151 EWII Bredbaand A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 275ms

TXT Record
google-site-verification=HkXNwwPrcr5vG6K_qKeyDMKIh4EDd-At-LAjXz1hSys
v=spf1 mx include:eu-north-1.amazonses.com ~all

✉️ SPF#

Policy	Record (ndum.dk)
~all (soft fail)	v=spf1 mx include:eu-north-1.amazonses.com ~all

📨 DMARC#

Policy	Record (_dmarc.ndum.dk)
p=reject	v=DMARC1; p=reject; pct=100; rua=mailto:hkqidor6@ag.eu.dmarcian.com,mailto:postmaster@sandum.dk

📬 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 07:09:18

www	Exists, no address
www vs bare domain	Neither resolves ndum.dk: no address www.ndum.dk: no address
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
mail	—	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

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9077ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-116.awsdns-14.com
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

35ms

55ms

49ms

AAAA

51ms

TXT

275ms

CAA

38ms

HTTPS

54ms

TLSA

165ms

SOA

0ms

MTA-STS

87ms

DNSSEC

9077ms

SRV

85ms

Total

11949ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 11:40:05	3130ms	4 NS 0 A 1 MX	🔒 Secure
2026-09-26 06:46:22 shown	11949ms	4 NS 0 A 1 MX	🔒 Secure
2026-06-18 02:43:58	6467ms	4 NS 0 A 1 MX	🔒 Secure