host4u.dk

📜 Historical scan 2026-06-25 14:59:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

host4u.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.host4u.dk. 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#

4 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 60ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.host4u.dk	87.48.142.47	MX47.host4u.dk	AS3292 TDC Holding A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 134ms

TXT Record
v=spf1 a:mail.host4u.dk -all

✉️ SPF#

Policy	Record (host4u.dk)
-all (hard fail)	v=spf1 a:mail.host4u.dk -all

📨 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 2026-10-13 12:41:51

www	NXDOMAIN
www vs bare domain	Neither resolves host4u.dk: no address www.host4u.dk: no address
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 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#

80ms

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

🏷️ SOA#

24ms

Field	Value
Serial	2026040900
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

31ms

41ms

60ms

AAAA

41ms

TXT

134ms

CAA

29ms

HTTPS

40ms

TLSA

62ms

SOA

24ms

MTA-STS

85ms

DNSSEC

80ms

SRV

81ms

Total

572ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 12:41:50	1034ms	4 NS 0 A 1 MX	🔒 Secure
2026-10-08 01:54:48	393ms	4 NS 0 A 1 MX	🔒 Secure
2026-10-02 03:06:41	496ms	4 NS 0 A 1 MX	🔒 Secure
2026-09-30 02:53:28	488ms	4 NS 0 A 1 MX	🔒 Secure
2026-08-26 13:05:19	572ms	4 NS 0 A 1 MX	🔒 Secure
2026-06-25 14:59:15 shown	572ms	4 NS 0 A 1 MX	🔒 Secure
2026-06-25 13:54:02	785ms	4 NS 0 A 1 MX	🔒 Secure
2026-06-21 21:24:10	596ms	4 NS 0 A 1 MX	⚠️ Bogus
2026-06-17 13:16:58	2057ms	4 NS 0 A 1 MX	🔒 Secure