learnmark.dk

📜 Historical scan 2026-07-09 04:33:35 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

learnmark.dk is a .dk domain served by 3 nameservers (ns.efif.dk, ns2.efif.dk, ns3.efif.dk). It was registered on 17 January 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.126.78.209 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by learnmark-dk.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#

3 records 56ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.efif.dk	195.254.168.23	ns.efif.dk	AS51073 Aarhus Business College
ns2.efif.dk	195.254.168.12	ns2.efif.dk	AS51073 Aarhus Business College
ns3.efif.dk	20.23.170.35	—	AS8075 Microsoft Corporation

🌍 A Records#

1 records 85ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.126.78.209	3600s	—	AS8075	Microsoft Corporation	20.64.0.0/10	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	learnmark-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::7 2a01:111:f403:ca09::1 2a01:111:f403:ca09::8 52.101.68.27 52.101.68.32 52.101.73.19 52.101.73.6	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-am6pr04cu00306.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#

2 records 185ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	webmail.efif.dk
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

7 records 262ms

TXT Record
ahrefs-site-verification_6b107e82b7cbf840c1ae3855b5722826a2d1d4aa0ca3d3386039582f7562a313
autodesk-domain-verification=rWWqSseUDxPhp20X-_Im
facebook-domain-verification=qgmilcwxuuk5ixudfgii3kxyoovbdd
MS=ms62776259
skybrud6311le.azurewebsites.net
t+1uFq/vuYZz1aSXYJlsvDIxoKKFA0eBUM3IGNEOgrBzRKKui47Qs18IGiRYUFGUYFgTzH0dmNv7aD+mr5ws6w==
v=spf1 include:servers.mcsv.net include:spf.protection.outlook.com include:spf.mailjet.com include:spf.mcb.dk include:_spf.easycruit.com include:mailgun.org ip4:40.68.78.201 ip4:83.91.91.2 -all

✉️ SPF#

Policy	Record (learnmark.dk)
-all (hard fail)	v=spf1 include:servers.mcsv.net include:spf.protection.outlook.com include:spf.mailjet.com include:spf.mcb.dk include:_spf.easycruit.com include:mailgun.org ip4:40.68.78.201 ip4:83.91.91.2 -all

📨 DMARC#

Policy	Record (_dmarc.learnmark.dk)
p=reject	v=DMARC1; p=reject; pct=100; ruf=mailto:analyze@learnmark.dk; rua=mailto:64e88d13a948b@dmarc.centerasecurity.com

📬 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 2026-10-17 21:54:37

www	20.126.78.209 (AS8075) (address records, no CNAME)
www vs bare domain	Same network learnmark.dk: 20.126.78.209 (AS8075) www.learnmark.dk: 20.126.78.209 (AS8075)
Wildcard	No
Denial of existence	NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

5 found

Selector	CNAME	Key
k1	dkim.mcsv.net	RSA · ~1024 bit below 2048 bit
s1	s1.domainkey.u5089797.wl048.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u5089797.wl048.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-learnmark-dk._domainkey.lmhefif.n-v1.dkim.mail.microsoft	RSA · ~2048 bit
selector2	selector2-learnmark-dk._domainkey.lmhefif.n-v1.dkim.mail.microsoft	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: 10/10 · policy: -all

warn 10 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

184ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2010072477
Primary NS (MNAME)	ns.efif.dk
Responsible (RNAME)	dns-zc@efif.dk
Refresh	14400s
Retry	3600s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-12 07:19:18

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-01-17
Expires	2032-01-31 (1931d)

🔗 Same registrant#

24 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
amu-kursus.dk	Punktum dk A/S (direct)
bch10.dk	Punktum dk A/S (direct)
bchorsens.dk	Punktum dk A/S (direct)
bookmtc.dk	Punktum dk A/S (direct)
businesscollegehorsens.dk	Punktum dk A/S (direct)
chaufføruddannelse.dk	Punktum dk A/S (direct)
chaufføruddannelsen.dk	Punktum dk A/S (direct)
erhvervsgymnasiumhtx.dk	Punktum dk A/S (direct)
gymserver.dk	Punktum dk A/S (direct)
horsenshs.dk	Punktum dk A/S (direct)
horshs.dk	Punktum dk A/S (direct)
kursuscenter-horsens.dk	Punktum dk A/S (direct)
kursuscenterhorsens.dk	Punktum dk A/S (direct)
kvhh.dk	Punktum dk A/S (direct)
lmh-hx1-hold1.dk	Punktum dk A/S (direct)
lmh-hx2-hold1.dk	Punktum dk A/S (direct)
mureruddannelse.dk	Punktum dk A/S (direct)
sportcollegehorsens.dk	Punktum dk A/S (direct)
studenthorsens.dk	Punktum dk A/S (direct)
vchb.dk	Punktum dk A/S (direct)
videncenterbyggeri.dk	Punktum dk A/S (direct)
videnscenterbyggeri.dk	Punktum dk A/S (direct)
videnscenterhaandvaerk.dk	Punktum dk A/S (direct)
videnscenterhåndværk.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

56ms

85ms

54ms

AAAA

76ms

TXT

262ms

CAA

64ms

HTTPS

67ms

TLSA

215ms

SOA

0ms

MTA-STS

147ms

DNSSEC

184ms

SRV

185ms

Total

1592ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 21:54:37	2481ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-16 20:38:06	1599ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-14 14:07:10	4655ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-13 13:40:38	1312ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-12 06:50:29	3000ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-11 03:48:45	4692ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-10 02:53:56	1404ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-08 20:32:44	1800ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-07 20:31:19	1465ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-05 18:18:02	1640ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-04 18:16:59	2093ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-02 18:07:34	760ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-30 17:57:36	1297ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-27 17:10:59	1929ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-26 17:03:41	2139ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-25 16:55:49	1912ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-24 16:43:31	2157ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-23 16:29:47	2280ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-19 23:43:27	6889ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-11 13:46:57	3613ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-06 23:38:53	1454ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-03 20:38:27	1123ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-30 21:47:14	805ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-29 18:30:14	754ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-28 09:16:09	1229ms	3 NS 1 A 1 MX	🔒 Secure