ibo-brobygning.dk

📜 Historical scan 2026-09-23 19:59:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ibo-brobygning.dk is a .dk domain served by 2 nameservers (lucy.ns.cloudflare.com, micah.ns.cloudflare.com). It was registered on 29 May 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.41.8.51 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by ibobrobygning-dk0i.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
lucy.ns.cloudflare.com	108.162.192.133 172.64.32.133 173.245.58.133 2606:4700:50::adf5:3a85 2803:f800:50::6ca2:c085 2a06:98c1:50::ac40:2085	lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com lucy.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
micah.ns.cloudflare.com	108.162.193.206 172.64.33.206 173.245.59.206 2606:4700:58::adf5:3bce 2803:f800:50::6ca2:c1ce 2a06:98c1:50::ac40:21ce	micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com micah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
195.41.8.51	300s	—	AS3292	TDC Holding A/S	195.41.0.0/16	🇩🇰 Denmark	Frederiksberg

📧 MX Records#

1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	ibobrobygning-dk0i.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca04::c 2a01:111:f403:ca21::8 2a01:111:f403:ca21::a 52.101.185.21 52.101.185.24 52.101.68.10 52.101.68.39	mail-db7pr03cu00601.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00607.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 → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 213ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:post.tietgen.dk -all

✉️ SPF#

Policy	Record (ibo-brobygning.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:post.tietgen.dk -all

📨 DMARC#

Policy	Record (_dmarc.ibo-brobygning.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:69f41c52b33a4c4b8857ca6d99fb3a49@dmarc-reports.cloudflare.net

📬 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 2026-10-18 23:36:26

www CNAME	ibo-brobygning.dk (all on ibo-brobygning.dk) → 195.41.8.51 (AS3292)
www vs bare domain	Same network ibo-brobygning.dk: 195.41.8.51 (AS3292) www.ibo-brobygning.dk: 195.41.8.51 (AS3292)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-ibobrobygning-dk0i._domainkey.tietgen365.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

error include:post.tietgen.dk has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.ibo-brobygning.dk	crDaABlOdC6W2N_4lHXT39P2dx6mRChxUFWp89zi45s
TXT	_acme-challenge.ibo-brobygning.dk	mjxYV9qlxM4VI_2F2-T3JU-HfD7yo-mB8t_NVcyw8WA

🔗 TLSA / DANE#

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

🔐 DNSSEC#

105ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2415566654
Primary NS (MNAME)	lucy.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-18 23:55:21

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-05-29
Expires	2027-05-31 (216d)

🔗 Same registrant#

74 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
amuledelse.dk	Punktum dk A/S (direct)
amuonline.dk	Punktum dk A/S (direct)
aspit-odense.dk	Punktum dk A/S (direct)
audiguiden.dk	Punktum dk A/S (direct)
auguiden.dk	Punktum dk A/S (direct)
auledelse.dk	Punktum dk A/S (direct)
boghandleruddannelsen.dk	Punktum dk A/S (direct)
businessviden.dk	Punktum dk A/S (direct)
ciuud.dk	Punktum dk A/S (direct)
core2020.dk	Punktum dk A/S (direct)
dmnø.dk	Punktum dk A/S (direct)
e2e-syd.dk	Punktum dk A/S (direct)
etietgen.dk	Punktum dk A/S (direct)
eventuddannelsen.dk	Punktum dk A/S (direct)
forfremtiden.dk	Punktum dk A/S (direct)
fvuonline.dk	Punktum dk A/S (direct)
gymodense.dk	Punktum dk A/S (direct)
hca-stx.dk	Punktum dk A/S (direct)
hcagymnasium.dk	Punktum dk A/S (direct)
hcastx.dk	Punktum dk A/S (direct)
hg-odense.dk	Punktum dk A/S (direct)
hhx-odense.dk	Punktum dk A/S (direct)
hhxfyn.dk	Punktum dk A/S (direct)
hs-stu.dk	Punktum dk A/S (direct)
hybridleder.dk	Punktum dk A/S (direct)
it-administrator-fyn.dk	Punktum dk A/S (direct)
kaosklub.dk	Punktum dk A/S (direct)
kompetencekompasset.dk	Punktum dk A/S (direct)
kompetencevaekst.dk	Punktum dk A/S (direct)
kompetencevækst.dk	Punktum dk A/S (direct)
kurser-fyn.dk	Punktum dk A/S (direct)
kurser-odense.dk	Punktum dk A/S (direct)
laonline.dk	Punktum dk A/S (direct)
leadigeelevpladser.dk	Punktum dk A/S (direct)
lean-learning.dk	Punktum dk A/S (direct)
lederipraksis.dk	Punktum dk A/S (direct)
lederivirkeligheden.dk	Punktum dk A/S (direct)
lederpraksis.dk	Punktum dk A/S (direct)
ledertrainee.dk	Punktum dk A/S (direct)
ledertrappen.dk	Punktum dk A/S (direct)
ledigeelevpladser.dk	Punktum dk A/S (direct)
obuonline.dk	Punktum dk A/S (direct)
odensegymnasium.dk	Punktum dk A/S (direct)
offentliglederfokus.dk	Punktum dk A/S (direct)
offentliglederkarriere.dk	Punktum dk A/S (direct)
offentligledertalent.dk	Punktum dk A/S (direct)
praksisuddannelse.dk	Punktum dk A/S (direct)
projekt-virksomhedsporten.dk	Punktum dk A/S (direct)
sprogcenter-fyn.dk	Punktum dk A/S (direct)
studenterodense.dk	Punktum dk A/S (direct)
studentodense.dk	Punktum dk A/S (direct)
stx-fyn.dk	Punktum dk A/S (direct)
stxfyn.dk	Punktum dk A/S (direct)
teitgen.dk	Punktum dk A/S (direct)
tietgen.dk	Punktum dk A/S (direct)
tietgenapps.dk	Punktum dk A/S (direct)
tietgenbusiness.dk	Punktum dk A/S (direct)
tietgendetail.dk	Punktum dk A/S (direct)
tietgenfinans.dk	Punktum dk A/S (direct)
tietgenkompetencecenter.dk	Punktum dk A/S (direct)
tietgennet.dk	Punktum dk A/S (direct)
tietgenonline.dk	Punktum dk A/S (direct)
tietgenskolen.dk	Punktum dk A/S (direct)
tietgenwebshop.dk	Punktum dk A/S (direct)
titgen.dk	Punktum dk A/S (direct)
titgenskolen.dk	Punktum dk A/S (direct)
tkconline.dk	Punktum dk A/S (direct)
uddannelse-fyn.dk	Punktum dk A/S (direct)
uddannelse-odense.dk	Punktum dk A/S (direct)
uddannelser-fyn.dk	Punktum dk A/S (direct)
uddannelser-odense.dk	Punktum dk A/S (direct)
veteranindsatsfyn.dk	Punktum dk A/S (direct)
videncenterfinans.dk	Punktum dk A/S (direct)
videncenterforfinans.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

38ms

29ms

AAAA

40ms

TXT

213ms

CAA

36ms

HTTPS

44ms

TLSA

650ms

SOA

0ms

MTA-STS

63ms

DNSSEC

105ms

SRV

80ms

Total

1307ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-18 23:36:26	1193ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-15 22:59:29	2469ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-09 12:31:15	1313ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-04 08:05:25	1129ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 19:04:24	1805ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 19:03:14	2213ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 18:31:21	1039ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 18:23:59	698ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 17:15:25	1424ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 16:43:54	713ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 20:59:02	1746ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 20:07:49	967ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 19:59:34 shown	1307ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 07:16:42	1567ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-13 05:36:05	2249ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 16:03:45	2446ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-30 14:30:55	2607ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 03:17:12	856ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-23 01:40:37	5650ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-17 17:16:47	2321ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-08 14:53:42	9311ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-15 02:53:26	1930ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-29 23:27:47	794ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 04:37:02	1677ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 00:27:44	2311ms	2 NS 1 A 1 MX	🔒 Secure