21bit.dk

Records from scan: 2026-10-17 00:13:43  ·  616ms total
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

21bit.dk is a .dk domain served by 2 nameservers (frank.ns.cloudflare.com, margaret.ns.cloudflare.com). It was registered on 7 January 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.22.148 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   33ms
NameserverIP addressesPTRASN / ISP
frank.ns.cloudflare.com 108.162.193.166
172.64.33.166
173.245.59.166
2606:4700:58::adf5:3ba6
2803:f800:50::6ca2:c1a6
2a06:98c1:50::ac40:21a6		 frank.ns.cloudflare.com
frank.ns.cloudflare.com
frank.ns.cloudflare.com
frank.ns.cloudflare.com
frank.ns.cloudflare.com
frank.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
margaret.ns.cloudflare.com 108.162.194.107
162.159.38.107
172.64.34.107
2606:4700:50::a29f:266b
2803:f800:50::6ca2:c26b
2a06:98c1:50::ac40:226b		 margaret.ns.cloudflare.com
margaret.ns.cloudflare.com
margaret.ns.cloudflare.com
margaret.ns.cloudflare.com
margaret.ns.cloudflare.com
margaret.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

2 records   36ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.22.148 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.205.86 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

📧
No MX records found

🔷 AAAA Records (IPv6)#

2 records   36ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3030::6815:1694 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3033::ac43:cd56 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   36ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.22.148,172.67.205.86 ech=AEX+DQBBewAgACBXY9tYoXZAWDXkcYYj6n7+DoyyvIICF19qyVbPADsrJAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:1694,2606:4700:3033::ac43:cd56

📝 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#

checked 2026-10-17 00:13:43
www104.21.22.148 172.67.205.86 2606:4700:3030::6815:1694 2606:4700:3033::ac43:cd56 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

🔗 TLSA / DANE#

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

🔐 DNSSEC#

110ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

46ms
FieldValue
Serial2417669286
Primary NS (MNAME)frank.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-17 00:52:16
FieldValue
RegistrarDynadot LLC
Registered2026-01-07
Expires2027-01-06 (81d)

🔗 Same registrant#

46 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

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📋 WHOIS#

⏱️ Lookup Timing#

NS
33ms
A
36ms
MX
29ms
AAAA
36ms
TXT
158ms
CAA
26ms
HTTPS
36ms
TLSA
60ms
SOA
46ms
MTA-STS
54ms
DNSSEC
110ms
SRV
55ms
Total
616ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-17 00:13:43 shown 616ms 2 NS 2 A 0 MX 🔓 Insecure
2026-10-07 07:46:09 1206ms 2 NS 2 A 0 MX 🔓 Insecure
2026-10-01 04:57:41 576ms 2 NS 2 A 0 MX 🔓 Insecure
2026-09-29 19:49:22 403ms 2 NS 2 A 0 MX 🔓 Insecure
2026-09-28 09:07:50 512ms 2 NS 2 A 0 MX 🔓 Insecure
2026-09-15 05:03:15 1259ms 2 NS 2 A 0 MX 🔓 Insecure
2026-09-11 02:46:58 1973ms 2 NS 2 A 0 MX 🔓 Insecure
2026-09-04 00:50:31 10009ms 2 NS 2 A 0 MX 🔓 Insecure
2026-08-23 02:54:54 1499ms 2 NS 2 A 0 MX 🔓 Insecure
2026-08-22 02:37:46 5246ms 2 NS 2 A 0 MX 🔓 Insecure
2026-07-08 19:16:08 8991ms 2 NS 2 A 0 MX 🔓 Insecure
2026-07-02 18:02:06 1638ms 2 NS 2 A 0 MX 🔓 Insecure
2026-06-20 02:28:00 2540ms 2 NS 2 A 0 MX ⚠️ Bogus
2026-06-19 16:12:55 1503ms 2 NS 2 A 0 MX 🔓 Insecure
2026-06-16 12:40:34 497ms 2 NS 2 A 0 MX 🔓 Insecure
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