erhvervslearn.dk

📜 Historical scan 2026-06-27 12:50:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

erhvervslearn.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 19 January 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.19 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by smtp.google.com. The zone is not DNSSEC-signed, 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 34ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 28ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.19	3600s	linux174.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	173.194.73.27 209.85.233.27 2a00:1450:4010:c07::1a 2a00:1450:4010:c07::1a 2a00:1450:4010:c08::1a 2a00:1450:4010:c08::1a 2a00:1450:4010:c08::1b 2a00:1450:4010:c08::1b 2a00:1450:4010:c0d::1b 2a00:1450:4010:c0d::1b 64.233.164.26 64.233.165.26 64.233.165.27	lq-in-f27.1e100.net lr-in-f27.1e100.net lf-in-f26.1e100.net lf-in-x1a.1e100.net lg-in-x1a.1e100.net lg-in-f26.1e100.net lg-in-f27.1e100.net lg-in-x1b.1e100.net lq-in-x1b.1e100.net lq-in-f27.1e100.net lf-in-f26.1e100.net lg-in-f26.1e100.net lg-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	93.191.156.19
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 48ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records#

1 records 138ms

TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF#

Policy	Record (erhvervslearn.dk)
-all (hard fail)	v=spf1 include:spf.simply.com -all

📨 DMARC#

Policy	Record (_dmarc.erhvervslearn.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.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 2026-10-07 16:02:29

www	93.191.156.19 (AS48854) (address records, no CNAME)
www vs bare domain	Same network erhvervslearn.dk: 93.191.156.19 (AS48854) www.erhvervslearn.dk: 93.191.156.19 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
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
google	—	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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

65ms

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

🏷️ SOA#

44ms

Field	Value
Serial	2026042805
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-03 15:49:43

Field	Value
Registrar	Simply.com A/S
Registered	2012-01-19
Expires	2027-01-31 (104d)

📋 WHOIS#

⏱️ Lookup Timing#

34ms

28ms

33ms

AAAA

33ms

TXT

138ms

CAA

31ms

HTTPS

32ms

TLSA

99ms

SOA

44ms

MTA-STS

34ms

DNSSEC

65ms

SRV

48ms

Total

862ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 15:19:44	678ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-27 12:50:20 shown	862ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 08:05:27	416ms	3 NS 1 A 1 MX	🔓 Insecure