tfbyg.dk

📜 Historical scan 2026-06-25 01:55:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tfbyg.dk is a .dk domain served by 4 nameservers (ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and 1 more). It was registered on 23 November 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 40.127.171.115 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by tfbyg-dk.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#

4 records 209ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.bdm.microsoftonline.com	13.107.236.208 2603:1061:0:700::d0	ns1-208.azure-dns.com ns1-208.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2.bdm.microsoftonline.com	150.171.21.208 2620:1ec:8ec:700::d0	ns2-208.azure-dns.net ns2-208.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3.bdm.microsoftonline.com	204.14.183.208 2a01:111:4000:700::d0	ns3-208.azure-dns.org ns3-208.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4.bdm.microsoftonline.com	208.84.5.208 2620:1ec:bda:700::d0	ns4-208.azure-dns.info ns4-208.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records#

1 records 223ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
40.127.171.115	3600s	—	AS8075	Microsoft Corporation	40.127.0.0/16	🇮🇪 Ireland	Dublin

📧 MX Records#

1 records 270ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	tfbyg-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09::20 2a01:111:f403:ca09::7 2a01:111:f403:ca09::c 52.101.68.12 52.101.68.32 52.101.73.12 52.101.73.15	mail-db6pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am4pr0401cu00104.inbound.protection.outlook.com mail-am9pr04cu00107.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#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 502ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 773ms

TXT Record
mscid=BaIEjw1UxEbmxfkLkPkRpEIg+ugDIUHV2jdG22QldMHKybNZhaKgS/M6rjD6RE5vwMZFHISgJrWvdJHXgJznUg==
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (tfbyg.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 2026-10-22 09:08:44

www	Exists, no address
www vs bare domain	www does not resolve tfbyg.dk: 40.127.171.115 (AS8075) www.tfbyg.dk: no address (all like this)
Wildcard	No

🔎 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#

406ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

227ms

Field	Value
Serial	1
Primary NS (MNAME)	ns1.bdm.microsoftonline.com
Responsible (RNAME)	azuredns-hostmaster@microsoft.com
Refresh	3600s
Retry	300s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-19 03:50:35

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-11-23
Expires	2026-11-30 (38d)

🔗 Same registrant#

61 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).

Domain	Registrar
allmechs.dk	Punktum dk A/S (direct)
ametekpittman.dk	CURANET A/S
b2a.dk	CURANET A/S
b2e.dk	CURANET A/S
belekboys.dk	Punktum dk A/S (direct)
biketheworld.dk	CURANET A/S
broagermotionsklub.dk	Punktum dk A/S (direct)
buskly.dk	Punktum dk A/S (direct)
cleancluster.dk	Punktum dk A/S (direct)
compenso.dk	Punktum dk A/S (direct)
dc-motor.dk	CURANET A/S
dcmotor.dk	CURANET A/S
deltaline-europe.dk	Punktum dk A/S (direct)
docx.dk	Punktum dk A/S (direct)
emdahl.dk	Punktum dk A/S (direct)
flexrengoring.dk	CURANET A/S
flytteboksen.dk	Punktum dk A/S (direct)
flytteboxen.dk	Punktum dk A/S (direct)
gefegneckar.dk	CURANET A/S
golfnbeer.dk	Punktum dk A/S (direct)
gølferne.dk	Punktum dk A/S (direct)
hfsonderborg.dk	CURANET A/S
im4.dk	Punktum dk A/S (direct)
inno-oil.dk	Punktum dk A/S (direct)
interdrive.dk	CURANET A/S
it-link.dk	Punktum dk A/S (direct)
itlk.dk	Punktum dk A/S (direct)
kaertelt.dk	Punktum dk A/S (direct)
kaerteltudlejning.dk	Punktum dk A/S (direct)
kaerudlejning.dk	Punktum dk A/S (direct)
krfnd.dk	Punktum dk A/S (direct)
mhvf.dk	CURANET A/S
michaelduus.dk	Punktum dk A/S (direct)
net365.dk	Punktum dk A/S (direct)
outdoor-tours.dk	Punktum dk A/S (direct)
outdoortours.dk	Punktum dk A/S (direct)
pcparts.dk	Punktum dk A/S (direct)
pogipartner.dk	CURANET A/S
portescap.dk	CURANET A/S
psykologsvanoe.dk	Punktum dk A/S (direct)
q1.dk	CURANET A/S
sandbjergvej.dk	Punktum dk A/S (direct)
sandgrus.dk	Punktum dk A/S (direct)
sielemannbyg.dk	Punktum dk A/S (direct)
skivegaard.dk	Punktum dk A/S (direct)
skivejagtforening.dk	CURANET A/S
skovhave-is.dk	Punktum dk A/S (direct)
soenderborg-haandbold.dk	Punktum dk A/S (direct)
solhof.dk	Punktum dk A/S (direct)
sonderborg-haandbold.dk	Punktum dk A/S (direct)
sonderborg-kokken.dk	Punktum dk A/S (direct)
spartelpeder.dk	Punktum dk A/S (direct)
ssrf.dk	Punktum dk A/S (direct)
sydalshk.dk	Punktum dk A/S (direct)
thomsonlinear.dk	CURANET A/S
tolw.dk	Punktum dk A/S (direct)
trace-im4.dk	Punktum dk A/S (direct)
vento-media.dk	Punktum dk A/S (direct)
villetta.dk	CURANET A/S
vvst.dk	CURANET A/S
xplorer.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

209ms

223ms

270ms

AAAA

243ms

TXT

773ms

CAA

501ms

HTTPS

534ms

TLSA

383ms

SOA

227ms

MTA-STS

289ms

DNSSEC

406ms

SRV

502ms

Total

2192ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 21:39:53	812ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-26 21:06:23	1026ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-16 13:51:29	1024ms	4 NS 1 A 1 MX	🔓 Insecure
2026-08-27 20:42:52	1158ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-25 01:55:29 shown	2192ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-17 14:06:51	2178ms	4 NS 1 A 1 MX	🔓 Insecure