cbirkkjaer.dk

📜 Historical scan 2026-06-24 12:06:15  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cbirkkjaer.dk is a .dk domain served by 2 nameservers (chance.ns.cloudflare.com, rita.ns.cloudflare.com). It was registered on 8 September 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.82.95 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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   163ms
NameserverIP addressesPTRASN / ISP
chance.ns.cloudflare.com 108.162.195.33
162.159.44.33
172.64.35.33
2606:4700:58::a29f:2c21
2803:f800:50::6ca2:c321
2a06:98c1:50::ac40:2321		 chance.ns.cloudflare.com
chance.ns.cloudflare.com
chance.ns.cloudflare.com
chance.ns.cloudflare.com
chance.ns.cloudflare.com
chance.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
rita.ns.cloudflare.com 108.162.192.140
172.64.32.140
173.245.58.140
2606:4700:50::adf5:3a8c
2803:f800:50::6ca2:c08c
2a06:98c1:50::ac40:208c		 rita.ns.cloudflare.com
rita.ns.cloudflare.com
rita.ns.cloudflare.com
rita.ns.cloudflare.com
rita.ns.cloudflare.com
rita.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   150ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.82.95 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.199.225 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

7 records   168ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s aspmx.l.google.com 142.251.9.27
2a00:1450:4025:c01::1a		 rc-in-f27.1e100.net
rd-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
20 300s alt1.aspmx.l.google.com 192.178.211.26
2404:6800:4000:1025::1a		 lcbomp-in-f26.1e100.net
lcbomp-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
20 300s alt2.aspmx.l.google.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
30 300s aspmx2.googlemail.com 192.178.211.27
2404:6800:4000:1025::1a		 lcbomp-in-f27.1e100.net
lcbomp-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 300s aspmx3.googlemail.com 172.253.158.26
2404:6800:4003:c26::1b		 so-in-f26.1e100.net
so-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 300s aspmx4.googlemail.com 108.177.125.26
2404:6800:4008:c01::1b		 tp-in-f26.1e100.net
tp-in-f27.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
30 300s aspmx5.googlemail.com 192.178.230.27
2404:6800:400b:c01b::1a		 yunrtab-in-f27.1e100.net
yunrtab-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records   164ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3036::ac43:c7e1 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::6815:525f 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   151ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.82.95,172.67.199.225 ech=AEX+DQBBFQAgACDv5ANalAi8b6OsMJlg/SWkg1CHU2Zwuq7OTvnUkiArBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::ac43:c7e1,2606:4700:3037::6815:525f

📝 TXT Records#

1 records   265ms
TXT Record
v=spf1 include:_spf.google.com ~all

✉️ SPF#

PolicyRecord (cbirkkjaer.dk)
~all (soft fail) v=spf1 include:_spf.google.com ~all

📨 DMARC#

PolicyRecord (_dmarc.cbirkkjaer.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:2b7e82c210e44ad2931d2f0c97f9f56c@dmarc-reports.cloudflare.net

📬 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 2026-10-21 08:48:44
wwwExists, no address
www vs bare domainwww does not resolve (all like this)
WildcardNo
Denial of existenceCompact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
google — RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 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#

205ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

141ms
FieldValue
Serial2407669563
Primary NS (MNAME)chance.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-05 11:15:17
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2008-09-08
Expires2027-09-30 (343d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
163ms
A
150ms
MX
168ms
AAAA
164ms
TXT
265ms
CAA
140ms
HTTPS
151ms
TLSA
167ms
SOA
141ms
MTA-STS
134ms
DNSSEC
205ms
SRV
162ms
Total
2318ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-21 08:48:44 585ms 2 NS 2 A 7 MX 🔒 Secure
2026-10-19 00:49:34 894ms 2 NS 2 A 7 MX 🔒 Secure
2026-10-18 00:00:00 1634ms 2 NS 2 A 7 MX 🔒 Secure
2026-10-14 21:12:33 1750ms 2 NS 2 A 7 MX 🔒 Secure
2026-10-13 20:20:56 1477ms 2 NS 2 A 7 MX 🔒 Secure
2026-10-12 18:57:47 1473ms 2 NS 2 A 7 MX 🔒 Secure
2026-10-10 17:01:05 5126ms 2 NS 2 A 7 MX 🔒 Secure
2026-10-08 13:24:55 1565ms 2 NS 2 A 7 MX 🔒 Secure
2026-10-07 13:15:18 1341ms 2 NS 2 A 7 MX 🔒 Secure
2026-10-04 03:01:13 4344ms 2 NS 2 A 7 MX 🔒 Secure
2026-10-01 18:53:47 1289ms 2 NS 2 A 7 MX 🔒 Secure
2026-09-30 18:50:12 1162ms 2 NS 2 A 7 MX 🔒 Secure
2026-09-28 18:32:37 966ms 2 NS 2 A 7 MX 🔒 Secure
2026-09-27 18:15:48 1104ms 2 NS 2 A 7 MX 🔒 Secure
2026-09-25 17:55:18 964ms 2 NS 2 A 7 MX 🔒 Secure
2026-09-14 22:23:03 2714ms 2 NS 2 A 7 MX 🔒 Secure
2026-09-07 20:08:00 2585ms 2 NS 2 A 7 MX 🔒 Secure
2026-08-31 06:22:59 2429ms 2 NS 2 A 7 MX 🔒 Secure
2026-08-28 08:43:29 882ms 2 NS 2 A 7 MX 🔒 Secure
2026-08-26 20:59:22 978ms 2 NS 2 A 7 MX 🔒 Secure
2026-08-23 04:29:53 11008ms 2 NS 2 A 7 MX 🔒 Secure
2026-08-22 04:22:10 1966ms 2 NS 2 A 7 MX 🔒 Secure
2026-08-19 01:59:16 17828ms 2 NS 2 A 7 MX 🔒 Secure
2026-08-17 19:39:21 1855ms 2 NS 2 A 7 MX 🔒 Secure
2026-08-14 18:49:14 3490ms 2 NS 2 A 7 MX 🔒 Secure
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