klausbaerentsen.dk

📜 Historical scan 2026-06-18 04:12:42  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

klausbaerentsen.dk is a .dk domain served by 2 nameservers (ray.ns.cloudflare.com, sue.ns.cloudflare.com). It was registered on 20 November 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.29.36 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.klausbaerentsen.dk. 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   71ms
NameserverIP addressesPTRASN / ISP
ray.ns.cloudflare.com 108.162.193.138
172.64.33.138
173.245.59.138
2606:4700:58::adf5:3b8a
2803:f800:50::6ca2:c18a
2a06:98c1:50::ac40:218a		 ray.ns.cloudflare.com
ray.ns.cloudflare.com
ray.ns.cloudflare.com
ray.ns.cloudflare.com
ray.ns.cloudflare.com
ray.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
sue.ns.cloudflare.com 108.162.192.145
172.64.32.145
173.245.58.145
2606:4700:50::adf5:3a91
2803:f800:50::6ca2:c091
2a06:98c1:50::ac40:2091		 sue.ns.cloudflare.com
sue.ns.cloudflare.com
sue.ns.cloudflare.com
sue.ns.cloudflare.com
sue.ns.cloudflare.com
sue.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   75ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.29.36 — — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.171.76 — — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   73ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mail.klausbaerentsen.dk — — —

🔷 AAAA Records (IPv6)#

2 records   68ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3034::6815:1d24 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3036::ac43:ab4c — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   71ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.29.36,172.67.171.76 ech=AEX+DQBB5AAgACAp9izuzZ9Qy/F0fdNQl7lSpSP5fClpvP6OEJ8Riw31bwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:1d24,2606:4700:3036::ac43:ab4c

📝 TXT Records#

1 records   302ms
TXT Record
v=spf1 a mx ip4:107.6.136.42 -all

✉️ SPF#

PolicyRecord (klausbaerentsen.dk)
-all (hard fail) v=spf1 a mx ip4:107.6.136.42 -all

📨 DMARC#

PolicyRecord (_dmarc.klausbaerentsen.dk)
p=quarantine v=DMARC1; p=quarantine;

📬 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 2026-10-24 12:21:57
www104.21.29.36 172.67.171.76 2606:4700:3030::ac43:ab4c 2606:4700:3035::6815:1d24 (AS13335) (address records, no CNAME)
www vs bare domainSame network
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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

208ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

73ms
FieldValue
Serial2407064539
Primary NS (MNAME)ray.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-14 15:33:29
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2020-11-20
Expires2026-11-30 (35d)

🔗 Same registrant#

29 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).

DomainRegistrar
alfa-nova.dkPunktum dk A/S (direct)
alfanova.dkPunktum dk A/S (direct)
aroslejren.dkPunktum dk A/S (direct)
bygbaeredygtigt.dkPunktum dk A/S (direct)
christiandamsgaard.dkPunktum dk A/S (direct)
damsgaard-bruhn.dkPunktum dk A/S (direct)
detsidsteord.dkPunktum dk A/S (direct)
dinudstillerguide.dkPunktum dk A/S (direct)
gymdrama.dkPunktum dk A/S (direct)
johnnysjokes.dkPunktum dk A/S (direct)
kaloeviggruppe.dkPunktum dk A/S (direct)
kaløviggruppe.dkPunktum dk A/S (direct)
kirstenbank.dkPunktum dk A/S (direct)
leneabildgaardknudsen.dkPunktum dk A/S (direct)
mercy-scouts.dkPunktum dk A/S (direct)
pihlmark.dkPunktum dk A/S (direct)
plante-magi.dkPunktum dk A/S (direct)
plantemagi.dkPunktum dk A/S (direct)
poguemahone.dkPunktum dk A/S (direct)
retrospective.dkPunktum dk A/S (direct)
retrospectives.dkPunktum dk A/S (direct)
scrumstuff.dkPunktum dk A/S (direct)
tofthamming.dkPunktum dk A/S (direct)
udstilleradmin.dkPunktum dk A/S (direct)
udstillerdatabase.dkPunktum dk A/S (direct)
udstillerdemo.dkPunktum dk A/S (direct)
udstillerguide.dkPunktum dk A/S (direct)
udstillerguiden.dkPunktum dk A/S (direct)
virksomhedsteori.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
71ms
A
75ms
MX
73ms
AAAA
68ms
TXT
302ms
CAA
82ms
HTTPS
71ms
TLSA
8054ms
SOA
73ms
MTA-STS
59ms
DNSSEC
208ms
SRV
150ms
Total
9101ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-24 12:21:57 1393ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-14 15:17:19 2107ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-03 20:58:20 1037ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-26 19:53:52 995ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-22 03:58:37 1354ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-18 23:58:27 1282ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-27 13:20:11 1131ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-06 22:59:54 2333ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-18 18:20:52 2292ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-12 11:48:43 16820ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-28 05:55:48 1176ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-26 18:13:03 1372ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-20 18:39:35 1548ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-18 04:23:08 3933ms 2 NS 2 A 1 MX 🔒 Secure
2026-06-18 04:12:42 shown 9101ms 2 NS 2 A 1 MX 🔒 Secure
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