sef-fiber.dk

📜 Historical scan 2026-06-20 00:11:44  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sef-fiber.dk is a .dk domain served by 2 nameservers (dom.ns.cloudflare.com, isabel.ns.cloudflare.com). It was registered on 30 May 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by seffiber-dk0i.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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   50ms
NameserverIP addressesPTRASN / ISP
dom.ns.cloudflare.com 108.162.193.157
172.64.33.157
173.245.59.157
2606:4700:58::adf5:3b9d
2803:f800:50::6ca2:c19d
2a06:98c1:50::ac40:219d		 dom.ns.cloudflare.com
dom.ns.cloudflare.com
dom.ns.cloudflare.com
dom.ns.cloudflare.com
dom.ns.cloudflare.com
dom.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
isabel.ns.cloudflare.com 108.162.194.104
162.159.38.104
172.64.34.104
2606:4700:50::a29f:2668
2803:f800:50::6ca2:c268
2a06:98c1:50::ac40:2268		 isabel.ns.cloudflare.com
isabel.ns.cloudflare.com
isabel.ns.cloudflare.com
isabel.ns.cloudflare.com
isabel.ns.cloudflare.com
isabel.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.

🌍 A Records#

🌍
No A records found

📧 MX Records#

1 records   41ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s seffiber-dk0i.mail.protection.outlook.com 2a01:111:f403:ca04::
2a01:111:f403:ca04::a
2a01:111:f403:ca09::c
2a01:111:f403:ca09::d
52.101.68.32
52.101.73.19
52.101.73.2
52.101.73.22		 mail-db3pr0202cu00100.inbound.protection.outlook.com
mail-du0pr03cu00102.inbound.protection.outlook.com
mail-as8pr05cu00304.inbound.protection.outlook.com
mail-as9pr05cu01305.inbound.protection.outlook.com
mail-db3pr0202cu00200.inbound.protection.outlook.com
mail-as8pr04cu00803.inbound.protection.outlook.com
mail-as9pr07cu00302.inbound.protection.outlook.com
mail-am7pr05cu00106.inbound.protection.outlook.com		 AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation
AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.101.70.200

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   225ms
TXT Record
MS=ms79744402
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

PolicyRecord (sef-fiber.dk)
-all (hard fail) v=spf1 include:spf.protection.outlook.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 2026-10-15 06:55:07
wwwNXDOMAIN
www vs bare domainNeither resolves
sef-fiber.dk: no address
www.sef-fiber.dk: no address
WildcardNo

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

132ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsresolution failed: ncache nxrrset

🏷️ SOA#

44ms
FieldValue
Serial2405535980
Primary NS (MNAME)dom.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-13 03:54:28
FieldValue
RegistrarEurodns S.A
Registered2022-05-30
Expires2027-05-29 (218d)

🔗 Same registrant#

130 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
123fiber.dkEurodns S.A
aeroe-energi.dkEurodns S.A
andelsenergi.dkEurodns S.A
andelsselskabethefenergimidt.dkEurodns S.A
auraselvbetjening.dkEurodns S.A
aurawebmail.dkEurodns S.A
bokser-play.dkEurodns S.A
boksershop.dkEurodns S.A
boxer.dkEurodns S.A
boxerbredbaand.dkEurodns S.A
boxerdk.dkEurodns S.A
boxerflex.dkEurodns S.A
boxerflex8.dkEurodns S.A
boxerforhandler.dkEurodns S.A
boxerkampagne.dkEurodns S.A
boxermax.dkEurodns S.A
boxerplay.dkEurodns S.A
boxertv.dkEurodns S.A
boxertvdk.dkEurodns S.A
bredbaandnord.dkEurodns S.A
connecthome.dkEurodns S.A
danskejet.dkEurodns S.A
egjylland.dkEurodns S.A
elpristavlen.dkEurodns S.A
elro.dkEurodns S.A
elronet.dkEurodns S.A
em2.dkEurodns S.A
energimidt-holding.dkEurodns S.A
energimidt.dkEurodns S.A
energimidtnetvest.dkEurodns S.A
energinord-holding.dkEurodns S.A
energinord.dkEurodns S.A
energinordholding.dkEurodns S.A
energiteknik.dkEurodns S.A
energivogter.dkEurodns S.A
enigdk.dkEurodns S.A
eniig-energiteknik.dkEurodns S.A
eniig-ext.dkEurodns S.A
eniig-forsyning.dkEurodns S.A
eniig-renewables.dkEurodns S.A
eniig.dkEurodns S.A
eniigenergi.dkEurodns S.A
eniigenergihandel.dkEurodns S.A
eniiig.dkEurodns S.A
er-du-eniig.dkEurodns S.A
ess.dkEurodns S.A
fibertilvestjylland.dkEurodns S.A
gasmester.dkEurodns S.A
gassalg.dkEurodns S.A
gazz.dkEurodns S.A
hctmn.dkEurodns S.A
hef-himmerlandselforsyning.dkEurodns S.A
hmn-naturgas.dkEurodns S.A
hmncng.dkEurodns S.A
hmngas.dkEurodns S.A
hmnlng.dkEurodns S.A
hmnselvbetjening.dkEurodns S.A
innovationfur.dkEurodns S.A
mbbpartnerportal.dkEurodns S.A
mef.dkEurodns S.A
minmidt.dkEurodns S.A
minselvbetjening.dkEurodns S.A
mitenergimidt.dkEurodns S.A
mvision.dkEurodns S.A
naturgas.dkEurodns S.A
naturgassalg.dkEurodns S.A
nibeel.dkEurodns S.A
nlys.dkEurodns S.A
nordiskmobiltelefon.dkEurodns S.A
nordjyskelnet.dkEurodns S.A
nordlys-energi.dkEurodns S.A
nordlys.dkEurodns S.A
nordlysamba.dkEurodns S.A
nordlysenergi.dkEurodns S.A
noriys.dkEurodns S.A
norlys-bredbaand.dkEurodns S.A
norlys-energi.dkEurodns S.A
norlys-net.dkEurodns S.A
norlys-privat.dkEurodns S.A
norlys-tele.dkEurodns S.A
norlys-telecom.dkEurodns S.A
norlys-trading.dkEurodns S.A
norlys-tv.dkEurodns S.A
norlys.dkEurodns S.A
norlysapi.dkEurodns S.A
norlysbredbaand.dkEurodns S.A
norlysbredbånd.dkEurodns S.A
norlyselnet.dkEurodns S.A
norlysfibernet.dkEurodns S.A
norlysholding.dkEurodns S.A
norlysladeboks.dkEurodns S.A
norlysmobil.dkEurodns S.A
norlysnet.dkEurodns S.A
norlysplay.dkEurodns S.A
norlysprivat.dkEurodns S.A
norlysstroem.dkEurodns S.A
norlystele.dkEurodns S.A
norlystelekom.dkEurodns S.A
norlystest.dkEurodns S.A
norlystv.dkEurodns S.A

Showing 100 of 130.

📋 WHOIS#

⏱️ Lookup Timing#

NS
50ms
A
40ms
MX
41ms
AAAA
41ms
TXT
225ms
CAA
48ms
HTTPS
41ms
TLSA
160ms
SOA
44ms
MTA-STS
83ms
DNSSEC
132ms
SRV
368ms
Total
920ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-15 06:55:07 2453ms 2 NS 0 A 1 MX 🔓 Insecure
2026-10-13 03:40:31 3084ms 2 NS 0 A 1 MX 🔓 Insecure
2026-10-12 01:25:20 2151ms 2 NS 0 A 1 MX 🔓 Insecure
2026-09-25 02:41:17 1115ms 2 NS 0 A 1 MX 🔓 Insecure
2026-09-23 13:09:45 1605ms 2 NS 0 A 1 MX 🔓 Insecure
2026-09-01 17:01:07 1210ms 2 NS 0 A 1 MX 🔓 Insecure
2026-08-26 03:54:55 912ms 2 NS 0 A 1 MX 🔓 Insecure
2026-08-14 20:48:10 1676ms 2 NS 0 A 1 MX 🔓 Insecure
2026-07-24 20:45:16 2301ms 2 NS 0 A 1 MX 🔓 Insecure
2026-06-23 15:13:22 1093ms 2 NS 0 A 1 MX 🔓 Insecure
2026-06-22 22:55:13 1146ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-21 17:14:55 1068ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 00:11:44 shown 920ms 2 NS 0 A 1 MX 🔓 Insecure
2026-06-17 13:17:31 1101ms 2 NS 0 A 1 MX 🔓 Insecure
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