businessinstitute-uddannelse.dk

Records from scan: 2026-09-25 02:56:38 · 788ms total · last checked 2026-10-22 17:20 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

businessinstitute-uddannelse.dk is a .dk domain served by 2 nameservers (igor.ns.cloudflare.com, sue.ns.cloudflare.com). It was registered on 30 June 2026 (WHOIS) and first appeared in the .dk zone on 1 July 2026. Its website address 104.21.83.114 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.businessinstitute-uddannelse.dk. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 36ms

Nameserver	IP addresses	PTR	ASN / ISP
igor.ns.cloudflare.com	108.162.193.119 172.64.33.119 173.245.59.119 2606:4700:58::adf5:3b77 2803:f800:50::6ca2:c177 2a06:98c1:50::ac40:2177	igor.ns.cloudflare.com igor.ns.cloudflare.com igor.ns.cloudflare.com igor.ns.cloudflare.com igor.ns.cloudflare.com igor.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sue.ns.cloudflare.com	108.162.192.145 172.64.32.145 173.245.58.145 2606:4700:50::adf5:3a91 2803:f800:50::6ca2:c091 2a06:98c1:50::ac40:2091	sue.ns.cloudflare.com sue.ns.cloudflare.com sue.ns.cloudflare.com sue.ns.cloudflare.com sue.ns.cloudflare.com sue.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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.83.114	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.175.140	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 42ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.businessinstitute-uddannelse.dk	16.192.69.21	mail.businessinstitute-uddannelse.dk	AS16509 Amazon.com, Inc.

🔷 AAAA Records (IPv6)#

2 records 42ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3037::6815:5372	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:af8c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 31ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.83.114,172.67.175.140 ech=AEX+DQBBtgAgACAMb//pJZX68uaLrJVO//FQcDiYso43EEcexkd5IKxBXQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3037::6815:5372,2606:4700:3037::ac43:af8c

📝 TXT Records#

1 records 179ms

TXT Record
v=spf1 a mx ip4:16.192.69.21 ~all

✉️ SPF#

Policy	Record (businessinstitute-uddannelse.dk)
~all (soft fail)	v=spf1 a mx ip4:16.192.69.21 ~all

📨 DMARC#

Policy	Record (_dmarc.businessinstitute-uddannelse.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 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#

checked 2026-10-08 10:07:13

www	104.21.83.114 172.67.175.140 2606:4700:3037::6815:5372 2606:4700:3037::ac43:af8c (AS13335) (address records, no CNAME)
www vs bare domain	Same network businessinstitute-uddannelse.dk: 104.21.83.114 172.67.175.140 2606:4700:3037::6815:5372 2606:4700:3037::ac43:af8c (AS13335) www.businessinstitute-uddannelse.dk: 104.21.83.114 172.67.175.140 2606:4700:3037::6815:5372 2606:4700:3037::ac43:af8c (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

84ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415728808
Primary NS (MNAME)	igor.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 23:07:55

Field	Value
Registrar	CURANET A/S
Registered	2026-06-30
Expires	2027-06-29 (247d)

🔗 Same registrant#

20 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
businessinstitute-mbauddannelse.dk	CURANET A/S
businessinstitute-uddannelser.dk	CURANET A/S
ceresbyentappehaller.dk	CURANET A/S
event-venue.dk	CURANET A/S
f5-danmark.dk	CURANET A/S
f5-dev.dk	CURANET A/S
f5-nordic.dk	CURANET A/S
f5danmark.dk	CURANET A/S
f5erhvervsnetvaerk.dk	CURANET A/S
f5inspiration.dk	CURANET A/S
f5kontakt.dk	CURANET A/S
f5ledelse.dk	CURANET A/S
f5leder.dk	CURANET A/S
f5ledernetvaerk.dk	CURANET A/S
f5netvaerket.dk	CURANET A/S
f5network.dk	CURANET A/S
f5nordic.dk	CURANET A/S
f5strategi.dk	CURANET A/S
f5udvikling.dk	CURANET A/S
tuborgtappehaller.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

36ms

41ms

42ms

AAAA

42ms

TXT

179ms

CAA

44ms

HTTPS

31ms

TLSA

77ms

SOA

0ms

MTA-STS

67ms

DNSSEC

84ms

SRV

54ms

Total

788ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-25 02:56:38 shown	788ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-31 01:00:09	461ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-29 23:28:03	1263ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-09 03:37:49	941ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-01 08:34:23	705ms	2 NS 0 A 0 MX	🔓 Insecure