4r.dk

📜 Historical scan 2026-06-20 07:17:58 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4r.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 2 June 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.193 is hosted by team.blue Denmark A/S (AS48854) in Denmark. 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 43ms

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#

1 records 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.193	3600s	linux303.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	93.191.156.193
🔶 Autoconfig	93.191.156.193

🔷 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 2026-10-09 10:27:45

www	93.191.156.193 (AS48854) (address records, no CNAME)
www vs bare domain	Same network 4r.dk: 93.191.156.193 (AS48854) www.4r.dk: 93.191.156.193 (AS48854)
Wildcard	Yes: any name under the zone resolves
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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

112ms

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

🏷️ SOA#

38ms

Field	Value
Serial	2020072990
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-02 02:36:20

Field	Value
Registrar	Simply.com A/S
Registered	2010-06-02
Expires	2035-06-30 (3178d)

📋 WHOIS#

⏱️ Lookup Timing#

43ms

28ms

61ms

AAAA

46ms

TXT

313ms

CAA

66ms

HTTPS

40ms

TLSA

67ms

SOA

38ms

MTA-STS

58ms

DNSSEC

112ms

SRV

224ms

Total

552ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:27:45	513ms	4 NS 1 A 0 MX	🔒 Secure
2026-10-02 02:13:26	554ms	4 NS 1 A 0 MX	🔒 Secure
2026-09-26 01:06:36	436ms	4 NS 1 A 0 MX	🔒 Secure
2026-07-26 18:39:13	16843ms	4 NS 1 A 0 MX	🔒 Secure
2026-07-03 00:41:44	518ms	4 NS 1 A 0 MX	🔒 Secure
2026-06-20 22:20:53	326ms	4 NS 1 A 0 MX	🔒 Secure
2026-06-20 07:17:58 shown	552ms	4 NS 1 A 0 MX	🔒 Secure
2026-06-16 12:56:50	904ms	4 NS 1 A 0 MX	🔒 Secure