efrentemester.dk

Records from scan: 2026-10-21 19:40:38 · 563ms total · last checked 2026-10-27 14:25 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

efrentemester.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 18 March 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by efrentemester-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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 26ms

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 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	600s	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 22ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	efrentemester-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca21::e 2a01:111:f403:ca3c::a 2a01:111:f403:ca48::a 52.101.103.36 52.101.185.114 52.101.68.10 52.101.73.123	mail-du0pr03cu00102.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am6pr02cu00203.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 → 52.98.154.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 94ms

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

✉️ SPF#

Policy	Record (efrentemester.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#

checked 2026-10-21 19:40:38

www	94.231.103.100 (AS48854) (address records, no CNAME)
www vs bare domain	Same network efrentemester.dk: 94.231.103.100 (AS48854) www.efrentemester.dk: 94.231.103.100 (AS48854)
Wildcard	No
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

🔎 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#

96ms

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

🏷️ SOA#

22ms

Field	Value
Serial	2026101200
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 2026-10-05 12:49:15

Field	Value
Registrar	Simply.com A/S
Registered	2011-03-18
Expires	2027-03-31 (154d)

📋 WHOIS#

⏱️ Lookup Timing#

26ms

27ms

22ms

AAAA

27ms

TXT

94ms

CAA

32ms

HTTPS

21ms

TLSA

134ms

SOA

22ms

MTA-STS

41ms

DNSSEC

96ms

SRV

35ms

Total

563ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 19:40:38 shown	563ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-12 23:13:39	1173ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-09 10:58:30	1199ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-04 02:01:22	1034ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-30 01:42:52	617ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-27 03:52:08	921ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-29 20:59:27	701ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 06:09:21	19502ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 06:08:57	2878ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 06:01:16	2720ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 06:00:55	547ms	3 NS 1 A 1 MX	🔓 Insecure