021.dk

📜 Historical scan 2026-07-08 12:44:12 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

021.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 13 March 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 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#

3 records 106ms

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

🌍 A Records#

1 records 94ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	600s	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	94.231.109.98
🔶 Autoconfig	94.231.109.98

🔷 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 2026-10-10 05:24:25

www	94.231.103.100 (AS48854) (address records, no CNAME)
www vs bare domain	Same network 021.dk: 94.231.103.100 (AS48854) www.021.dk: 94.231.103.100 (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#

231ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026070602
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 22:26:07

Field	Value
Registrar	Simply.com A/S
Registered	2025-03-13
Expires	2027-03-12 (146d)

📋 WHOIS#

⏱️ Lookup Timing#

106ms

94ms

90ms

AAAA

95ms

TXT

262ms

CAA

85ms

HTTPS

88ms

TLSA

83ms

SOA

0ms

MTA-STS

105ms

DNSSEC

231ms

SRV

177ms

Total

867ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 21:44:07	1316ms	3 NS 1 A 0 MX	🔒 Secure
2026-08-26 12:24:15	423ms	3 NS 1 A 0 MX	🔒 Secure
2026-07-08 12:44:12 shown	867ms	3 NS 1 A 0 MX	🔒 Secure
2026-07-05 00:36:37	4460ms	3 NS 2 A 0 MX	🔒 Secure
2026-06-20 01:41:15	3573ms	3 NS 2 A 0 MX	🔒 Secure
2026-06-20 00:14:51	4465ms	3 NS 2 A 0 MX	🔒 Secure
2026-06-19 19:56:02	4519ms	3 NS 2 A 0 MX	🔒 Secure
2026-06-16 12:33:32	1574ms	3 NS 2 A 0 MX	🔒 Secure