vonburholt.dk

📜 Historical scan 2026-10-01 08:27:33  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

vonburholt.dk is a .dk domain served by 2 nameservers (bella.ns.cloudflare.com, buck.ns.cloudflare.com). It was registered on 24 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.75.163 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. 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   34ms
NameserverIP addressesPTRASN / ISP
bella.ns.cloudflare.com 108.162.192.74
172.64.32.74
173.245.58.74
2606:4700:50::adf5:3a4a
2803:f800:50::6ca2:c04a
2a06:98c1:50::ac40:204a		 bella.ns.cloudflare.com
bella.ns.cloudflare.com
bella.ns.cloudflare.com
bella.ns.cloudflare.com
bella.ns.cloudflare.com
bella.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
buck.ns.cloudflare.com 108.162.193.78
172.64.33.78
173.245.59.78
2606:4700:58::adf5:3b4e
2803:f800:50::6ca2:c14e
2a06:98c1:50::ac40:214e		 buck.ns.cloudflare.com
buck.ns.cloudflare.com
buck.ns.cloudflare.com
buck.ns.cloudflare.com
buck.ns.cloudflare.com
buck.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   31ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.75.163 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.178.189 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

1 records   44ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx.simply.com 94.231.106.20 mx.simply.com AS48854 team.blue Denmark A/S

🔷 AAAA Records (IPv6)#

2 records   34ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::6815:4ba3 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3035::ac43:b2bd 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   38ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.75.163,172.67.178.189 ech=AEX+DQBBIQAgACDepu5XFhjNsTaJykFP5aC6eLhW+KKUXtgKGuWt2c26QgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:4ba3,2606:4700:3035::ac43:b2bd

📝 TXT Records#

2 records   184ms
TXT Record
apple-domain-verification=Avsw3WvmSjbhHQLc
v=spf1 include:spf.simply.com ~all

✉️ SPF#

PolicyRecord (vonburholt.dk)
~all (soft fail) v=spf1 include:spf.simply.com ~all

📨 DMARC#

PolicyRecord (_dmarc.vonburholt.dk)
p=quarantine v=DMARC1; p=quarantine; pct=25; rua=mailto:smil@vonburholt.dk

📬 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 2026-10-20 10:11:16
www104.21.75.163 172.67.178.189 2606:4700:3033::6815:4ba3 2606:4700:3035::ac43:b2bd (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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

3 records   71ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 4B949F05A63FED95FC94B3A83DD70167…

🔐 DNSSEC#

103ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

39ms
FieldValue
Serial2416255209
Primary NS (MNAME)bella.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-20 10:43:40
FieldValue
RegistrarSimply.com A/S
Registered2026-03-24
Expires2027-03-23 (150d)

🔗 Same registrant#

1 domain

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
burholt.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
34ms
A
31ms
MX
44ms
AAAA
34ms
TXT
184ms
CAA
51ms
HTTPS
38ms
TLSA
71ms
SOA
39ms
MTA-STS
56ms
DNSSEC
103ms
SRV
76ms
Total
761ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-20 10:11:16 492ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-08 11:30:14 6630ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-01 08:27:33 shown 761ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-29 08:05:54 699ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-26 07:13:35 576ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-15 00:54:30 2574ms 2 NS 2 A 1 MX 🔒 Secure
2026-09-03 13:47:06 1105ms 2 NS 2 A 1 MX 🔒 Secure
2026-08-20 15:16:49 12154ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-28 17:32:48 1572ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-15 20:52:56 8840ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-10 22:15:43 9831ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-04 14:29:50 2945ms 2 NS 2 A 1 MX 🔒 Secure
2026-07-03 10:12:37 619ms 3 NS 4 A 1 MX 🔒 Secure
2026-06-30 21:45:18 765ms 3 NS 4 A 1 MX 🔒 Secure
2026-06-21 19:56:21 470ms 3 NS 4 A 0 MX 🔒 Secure
2026-06-21 01:24:57 2297ms 3 NS 4 A 0 MX 🔒 Secure
2026-06-18 04:32:11 560ms 3 NS 4 A 0 MX 🔒 Secure
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