u18.dk

📜 Historical scan 2026-06-18 04:24:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

u18.dk is a .dk domain served by 2 nameservers (ns01.danskinternet.dk, ns02.danskinternet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.155.240 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by u18-dk.mail.protection.outlook.com. 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#

2 records 272ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.danskinternet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns02.danskinternet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 262ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.155.240	—	forward.dnsfactory.dk	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 412ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	u18-dk.mail.protection.outlook.com	—	—	—

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 1564ms

TXT Record
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (u18.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.u18.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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 14:01:12

www CNAME	ns00.danskinternet.dk (all on danskinternet.dk) → 172.238.244.47 (AS63949)
www vs bare domain	Same network u18.dk: 172.238.244.47 (AS63949) www.u18.dk: 172.238.244.47 (AS63949)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

1651ms

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

🏷️ SOA#

285ms

Field	Value
Serial	2023092101
Primary NS (MNAME)	ns01.danskinternet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

272ms

262ms

412ms

AAAA

406ms

TXT

1564ms

CAA

240ms

HTTPS

348ms

TLSA

586ms

SOA

285ms

MTA-STS

276ms

DNSSEC

1651ms

SRV

4159ms

Total

21620ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-26 09:44:15	697ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-09 15:51:57	1255ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-04 17:01:34	712ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-02 06:08:03	1337ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 10:07:26	715ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 04:24:17 shown	21620ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 04:04:47	913ms	2 NS 1 A 1 MX	🔒 Secure