21st.dk

📜 Historical scan 2026-06-27 21:24:02 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

21st.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 194.150.113.21 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 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 49ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.dandomain.dk	185.25.141.3 2a02:2339:4006:109::dd	ns.dandomain.dk ns.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.dandomain.dk	2a02:2339:1:108::dd:dd 91.197.248.66	ns2.dandomain.dk ns2.dandomain.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
194.150.113.21	3600s	—	AS48854	team.blue Denmark A/S	194.150.112.0/22	🇩🇰 Denmark	Skanderborg

📧 MX Records#

5 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	108.177.14.26 2a00:1450:4010:c0f::1a 2a00:1450:4010:c0f::1a	lt-in-f26.1e100.net lt-in-f26.1e100.net lt-in-x1a.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	aspmx3.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 138ms

TXT Record
google-site-verification=qamg4W-hlkRUVKhQ0yYyAfV_Yr5r4gbzKR_utPYOgK8

✉️ 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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

65ms

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

🏷️ SOA#

45ms

Field	Value
Serial	2023061501
Primary NS (MNAME)	ns.dandomain.dk
Responsible (RNAME)	hostmaster@dandomain.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#

49ms

45ms

AAAA

49ms

TXT

138ms

CAA

38ms

HTTPS

45ms

TLSA

51ms

SOA

45ms

MTA-STS

34ms

DNSSEC

65ms

SRV

46ms

Total

925ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 19:52:52	1004ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-09-28 13:19:15	1635ms	2 NS 0 A 0 MX	⚠️ Bogus
2026-09-24 12:35:42	400ms	2 NS 0 A 0 MX	🔒 Secure
2026-09-16 06:54:45	423ms	2 NS 0 A 0 MX	🔒 Secure
2026-06-27 21:24:02 shown	925ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-25 21:16:52	595ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-22 05:45:53	1190ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 13:18:35	12262ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-16 13:13:03	4902ms	2 NS 1 A 5 MX	🔒 Secure