ntt.dk

Records from scan: 2026-10-08 15:22:16 · 556ms total · last checked 2026-10-16 03:25 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ntt.dk is a .dk domain served by 4 nameservers (ns1.dotserv.com, ns1.dotserv.net, ns2.dotserv.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.216.109 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by ispc9.dotserv.com. The zone is not DNSSEC-signed, publishes a 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#

4 records 41ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dotserv.com	178.20.218.61 2a01:7cc0:101:ffff::51	ns1.dotserv.com ns1.dotserv.com	AS21060 Atea A/S AS21060 Atea A/S
ns1.dotserv.net	178.20.217.29 2a01:7cc0:101:ffff::52	ns1.dotserv.net ns1.dotserv.net	AS21060 Atea A/S AS21060 Atea A/S
ns2.dotserv.com	193.180.214.21	ns2.dotserv.com	AS44803 Webdock.io ApS
ns2.dotserv.net	162.19.249.51 2001:41d0:701:1100::c89e	ns2.dotserv.net ns2.dotserv.net	AS16276 OVH SAS AS16276 OVH SAS

🌍 A Records#

1 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.20.216.109	3600s	ispc9.dotserv.com	AS21060	Atea A/S	178.20.216.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	ispc9.dotserv.com	178.20.216.109	ispc9.dotserv.com	AS21060 Atea A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	mail.ntt.dk → 178.20.216.109
🔶 Autoconfig	178.20.216.109

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 244ms

TXT Record
v=spf1 include:_spf.dotserv.com -all

✉️ SPF#

Policy	Record (ntt.dk)
-all (hard fail)	v=spf1 include:_spf.dotserv.com -all

📨 DMARC#

Policy	Record (_dmarc.ntt.dk)
p=reject	v=DMARC1; p=reject;

📬 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 15:22:16

www	178.20.216.109 (AS21060) (address records, no CNAME)
www vs bare domain	Same network ntt.dk: 178.20.216.109 (AS21060) www.ntt.dk: 178.20.216.109 (AS21060)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

71ms

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

🏷️ SOA#

45ms

Field	Value
Serial	1350378603
Primary NS (MNAME)	ns1.dotserv.com
Responsible (RNAME)	hostmaster@dotserv.com
Refresh	14400s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	900s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

41ms

34ms

44ms

AAAA

33ms

TXT

244ms

CAA

40ms

HTTPS

43ms

TLSA

83ms

SOA

45ms

MTA-STS

77ms

DNSSEC

71ms

SRV

81ms

Total

556ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 15:22:16 shown	556ms	4 NS 1 A 1 MX	🔓 Insecure
2026-10-08 07:12:42	615ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-19 07:42:11	59962ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-24 11:42:46	729ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 07:16:03	1224ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-18 03:48:03	783ms	4 NS 1 A 1 MX	🔓 Insecure