fiberboost.dk

📜 Historical scan 2026-06-17 09:29:50  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fiberboost.dk is a .dk domain served by 2 nameservers (celeste.ns.cloudflare.com, dakota.ns.cloudflare.com). It was registered on 1 March 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.6.240 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. 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   58ms
NameserverIP addressesPTRASN / ISP
celeste.ns.cloudflare.com — — —
dakota.ns.cloudflare.com — — —

🌍 A Records#

2 records   67ms
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.6.240 — — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.135.121 — — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

4 records   51ms
PriorityTTLMail ServerIP addressesPTRASN
10 — mx1.pub.mailpod11-cph3.one.com 104.37.34.230 mx1.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 — mx2.pub.mailpod11-cph3.one.com 104.37.34.231 mx2.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 — mx3.pub.mailpod11-cph3.one.com 104.37.34.232 mx3.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 — mx4.pub.mailpod11-cph3.one.com 104.37.34.233 mx4.pub.mailpod11-cph3.one.com AS51468 One.com A/S

🔷 AAAA Records (IPv6)#

2 records   69ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3033::6815:6f0 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3036::ac43:8779 — — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   53ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.6.240,172.67.135.121 ech=AEX+DQBBBwAgACCqfmcfnIuoKJ5IlEf/fctMxRpLGzhWDr4T3BFQFMHreQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:6f0,2606:4700:3036::ac43:8779

📝 TXT Records#

📝
No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-08 18:27:00
www104.21.6.240 172.67.135.121 2606:4700:3032::6815:6f0 2606:4700:3037::ac43:8779 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardNo

🔗 TLSA / DANE#

4 records   59ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…

🔐 DNSSEC#

167ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

84ms
FieldValue
Serial2407118125
Primary NS (MNAME)celeste.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-17 07:52:25
FieldValue
RegistrarONE.COM A/S
Registered2023-03-01
Expires2027-02-28 (132d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet
📋 WHOIS#

⏱️ Lookup Timing#

NS
58ms
A
67ms
MX
51ms
AAAA
69ms
TXT
146ms
CAA
58ms
HTTPS
53ms
TLSA
59ms
SOA
84ms
MTA-STS
49ms
DNSSEC
167ms
SRV
0ms
Total
939ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-03 17:41:35 672ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-29 17:21:20 578ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-20 22:18:41 765ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-15 08:04:49 1608ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-10 05:05:50 1300ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-26 06:42:47 1933ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-24 23:14:09 2333ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-21 20:31:16 1508ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-18 20:02:34 5698ms 2 NS 2 A 4 MX 🔓 Insecure
2026-08-07 05:07:21 1412ms 2 NS 2 A 4 MX 🔓 Insecure
2026-06-27 11:30:17 1071ms 2 NS 2 A 4 MX 🔓 Insecure
2026-06-17 09:29:50 shown 939ms 2 NS 2 A 4 MX 🔓 Insecure
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