vonburholt.dk

📜 Historical scan 2026-07-10 22:15:43  ·  ← 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 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   31ms
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   39ms
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   32ms
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   31ms
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   32ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.75.163,172.67.178.189 ech=AEX+DQBBWwAgACCvlgE7GtHwjvmaYUIrtlRMbqDRIsyRtgKNZlcfqagnNAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:4ba3,2606:4700:3035::ac43:b2bd

📝 TXT Records#

1 records   196ms
TXT Record
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=none (monitor only) v=DMARC1; p=none; 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 2026-10-08 11:30:14
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#

2 records   55ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 A9D603AF4D7ED6B9246B4B68500CD6F2…
SMTP _25._tcp.mx.simply.com DANE-EE · SPKI · SHA-256 97A3BA009F39C761BFFB6574340E8138…

🔐 DNSSEC#

9061ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2409154772
Primary NS (MNAME)bella.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup
📋 WHOIS#

⏱️ Lookup Timing#

NS
31ms
A
39ms
MX
32ms
AAAA
31ms
TXT
196ms
CAA
37ms
HTTPS
32ms
TLSA
55ms
SOA
0ms
MTA-STS
40ms
DNSSEC
9061ms
SRV
52ms
Total
9831ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-08 11:30:14 6630ms 2 NS 2 A 1 MX 🔒 Secure
2026-10-01 08:27:33 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 shown 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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