no-u.dk

📜 Historical scan 2026-06-29 04:57:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

no-u.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 21 March 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.239.32.21 is hosted by Google LLC (AS15169) in United States. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is DNSSEC-signed and validates, has no 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#

2 records 36ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

4 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.239.32.21	43200s	any-in-2015.1e100.net	AS15169	Google LLC	216.239.32.0/20	🇺🇸 United States	—
216.239.34.21	43200s	any-in-2215.1e100.net	AS15169	Google LLC	216.239.32.0/20	🇺🇸 United States	—
216.239.36.21	43200s	any-in-2415.1e100.net	AS15169	Google LLC	216.239.32.0/20	🇺🇸 United States	—
216.239.38.21	43200s	any-in-2615.1e100.net	AS15169	Google LLC	216.239.32.0/20	🇺🇸 United States	—

📧 MX Records#

7 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	2a00:1450:4010:c07::1a 2a00:1450:4010:c07::1a 64.233.164.26	lf-in-f26.1e100.net lf-in-x1a.1e100.net lf-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx4.googlemail.com	192.178.230.26 2404:6800:400b:c01b::1b	yunrtab-in-f26.1e100.net yunrtab-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx5.googlemail.com	173.194.43.27 2607:f8b0:400e:c1e::1a	yudlsqd-in-f27.1e100.net yudlsqd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	no-u.dk → 216.239.34.21
🔶 Autoconfig	no-u.dk → 216.239.38.21

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ 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#

latest probe, not this scan · checked 2026-10-08 03:02:41

www CNAME	ghs.googlehosted.com (all on googlehosted.com) → 142.251.143.147 2a00:1450:400f:802::2013 (AS15169)
www vs bare domain	Same network no-u.dk: 216.239.32.21 216.239.34.21 216.239.36.21 216.239.38.21 (AS15169) www.no-u.dk: 142.251.143.147 2a00:1450:400f:802::2013 (AS15169)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.no-u.dk	no-u.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

54ms

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

🏷️ SOA#

48ms

Field	Value
Serial	2026060801
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-12 03:47:07

Field	Value
Registrar	ONE.COM A/S
Registered	2009-03-21
Expires	2027-03-31 (159d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

36ms

37ms

54ms

AAAA

37ms

TXT

179ms

CAA

35ms

HTTPS

56ms

TLSA

128ms

SOA

48ms

MTA-STS

59ms

DNSSEC

54ms

SRV

57ms

Total

986ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 03:02:41	1474ms	2 NS 4 A 7 MX	🔒 Secure
2026-09-07 23:53:28	936ms	2 NS 4 A 7 MX	🔒 Secure
2026-08-07 16:29:24	1997ms	2 NS 4 A 7 MX	🔒 Secure
2026-07-09 12:38:50	1654ms	2 NS 4 A 7 MX	🔒 Secure
2026-06-29 04:57:33 shown	986ms	2 NS 4 A 7 MX	🔒 Secure
2026-06-19 19:36:54	1010ms	2 NS 4 A 7 MX	🔒 Secure
2026-06-18 00:13:34	2541ms	2 NS 4 A 7 MX	🔒 Secure