byboe.dk

📜 Historical scan 2026-08-26 14:48:52  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

byboe.dk is a .dk domain served by 2 nameservers (susan.ns.cloudflare.com, tosana.ns.cloudflare.com). It was registered on 14 November 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.41.164 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, has no 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   30ms
NameserverIP addressesPTRASN / ISP
susan.ns.cloudflare.com 108.162.194.199
162.159.38.199
172.64.34.199
2606:4700:50::a29f:26c7
2803:f800:50::6ca2:c2c7
2a06:98c1:50::ac40:22c7		 susan.ns.cloudflare.com
susan.ns.cloudflare.com
susan.ns.cloudflare.com
susan.ns.cloudflare.com
susan.ns.cloudflare.com
susan.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
tosana.ns.cloudflare.com 108.162.195.43
162.159.44.43
172.64.35.43
2606:4700:58::a29f:2c2b
2803:f800:50::6ca2:c32b
2a06:98c1:50::ac40:232b		 tosana.ns.cloudflare.com
tosana.ns.cloudflare.com
tosana.ns.cloudflare.com
tosana.ns.cloudflare.com
tosana.ns.cloudflare.com
tosana.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   34ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.41.164 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.148.60 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

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔶 Autoconfig104.21.41.164

🔷 AAAA Records (IPv6)#

2 records   33ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3030::6815:29a4 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3032::ac43:943c 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   37ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.41.164,172.67.148.60 ech=AEX+DQBBVAAgACAHSHUICxC8t/iQHx3wsFiEKQ08JFPD9rFsEmJ6bo5FEQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:29a4,2606:4700:3032::ac43:943c

📝 TXT Records#

2 records   160ms
TXT Record
google-site-verification=ukKNdo9MjW-3YfQIDCU2cnd6PeEqeBNiRt_G25x_r7g
v=spf1 include:spf.simply.com -all

✉️ SPF#

PolicyRecord (byboe.dk)
-all (hard fail) v=spf1 include:spf.simply.com -all

📨 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#

latest probe, not this scan · checked 2026-10-10 14:34:27
wwwNXDOMAIN
www vs bare domainwww does not resolve (all like this)
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.byboe.dk iBMjAF71kJAvl_jBH3Jrp4K1F6HwIznI1Tj9Uek90qw
TXT _acme-challenge.byboe.dk yQVcznT_-W8uyqSRUSUXejdzOUdVMpKS9F1-RQG4gbs

🔗 TLSA / DANE#

2 records   46ms
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…

🔐 DNSSEC#

113ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2413193186
Primary NS (MNAME)susan.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-12 12:03:26
FieldValue
RegistrarSimply.com A/S
Registered2022-11-14
Expires2026-11-13 (27d)

🔗 Same registrant#

2 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
studentplan.dkSimply.com A/S
studentsystems.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
30ms
A
34ms
MX
44ms
AAAA
33ms
TXT
160ms
CAA
29ms
HTTPS
37ms
TLSA
46ms
SOA
0ms
MTA-STS
50ms
DNSSEC
113ms
SRV
56ms
Total
613ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-01 15:48:49 934ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-30 15:42:21 1054ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-27 09:11:44 707ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-26 09:01:24 703ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-25 08:53:09 9617ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-25 01:14:16 766ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-24 00:45:49 943ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-15 22:15:34 2249ms 2 NS 2 A 1 MX 🔓 Insecure
2026-09-07 02:32:54 2037ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-26 14:48:52 shown 613ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-24 21:39:28 761ms 2 NS 2 A 1 MX 🔓 Insecure
2026-08-21 19:01:00 1035ms 2 NS 2 A 1 MX 🔓 Insecure
2026-06-20 18:54:57 939ms 3 NS 1 A 1 MX 🔒 Secure
2026-06-20 01:46:48 2749ms 3 NS 1 A 1 MX 🔒 Secure
2026-06-16 18:05:48 547ms 3 NS 1 A 1 MX 🔒 Secure
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