efb.dk

📜 Historical scan 2026-09-13 09:22:28  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

efb.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 25 September 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.216.97 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by mx.mentor-it.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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   44ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   28ms
IPTTLPTRASNISP / OrgCIDRCountryCity
178.20.216.97 600s s0.enavn.dk AS21060 Atea A/S 178.20.216.0/23 🇩🇰 Denmark —

📧 MX Records#

1 records   31ms
PriorityTTLMail ServerIP addressesPTRASN
0 3600s mx.mentor-it.dk 176.62.205.101
176.62.205.102
176.62.205.103
176.62.205.104		 mx1.mentor-it.dk
mx2.mentor-it.dk
mx3.mentor-it.dk
mx4.mentor-it.dk		 AS57030 Itm8 A/S
AS57030 Itm8 A/S
AS57030 Itm8 A/S
AS57030 Itm8 A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)#

1 records   41ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:7cc0:101:ffff::1:12 3600s — AS21060 Atea A/S 2a01:7cc0:100:0:0:0:0:0/40 🇩🇰 Denmark —

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records   57ms
ServicePriorityWeightPortTarget
_sipfederationtls._tcp 0 1 5061 sip.efb.dk

📝 TXT Records#

7 records   178ms
TXT Record
_globalsign-domain-verification=-mXPosZFXuVckiXtiDOMAXJ0nh9DRVFyOPH6m6chhX
19h438jqvf4j4ffaaeeoo143o9
apple-domain-verification=bXx6chuSEn7Bnj8D
google-site-verification=4ckKWLR-vC2gjq0N5JacKoBuERK1bx1NTa-Fimuc2MU
jegau76f8sihh4l6q6pjpigecs
MS=ms32378707
v=spf1 a include:spf.mandrillapp.com ip4:193.221.124.2 ip4:185.16.17.56 ip4:78.157.102.108 mx:itfservice.dk include:spf.eu.exclaimer.net ip4:81.7.132.82 ip4:81.7.132.87 ip4:91.193.137.122 ip4:212.37.140.204 ip4:87.54.30.238 mx:outforce.dk include:spf.mentor-it.dk include:spf.protection.outlook.com include:_spf.dotserv.com -all

✉️ SPF#

PolicyRecord (efb.dk)
-all (hard fail) v=spf1 a include:spf.mandrillapp.com ip4:193.221.124.2 ip4:185.16.17.56 ip4:78.157.102.108 mx:itfservice.dk include:spf.eu.exclaimer.net ip4:81.7.132.82 ip4:81.7.132.87 ip4:91.193.137.122 ip4:212.37.140.204 ip4:87.54.30.238 mx:outforce.dk include:spf.mentor-it.dk include:spf.protection.outlook.com include:_spf.dotserv.com -all

📨 DMARC#

PolicyRecord (_dmarc.efb.dk)
p=quarantine v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r; rf=afrf; pct=100; ri=86400

📬 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 2026-10-15 07:28:44
www CNAMEefb.dk (all on efb.dk)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
k1 dkim.mcsv.net RSA · ~1024 bit below 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#

110ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026091104
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-17 11:03:33
FieldValue
RegistrarPunktum dk A/S (direct)
Registered1998-09-25
Expires2027-09-30 (347d)

🔗 Same registrant#

2 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).

DomainRegistrar
efbkonference.dkPunktum dk A/S (direct)
esbjerg-fb.dkPunktum dk A/S (direct)
📋 WHOIS#

⏱️ Lookup Timing#

NS
44ms
A
28ms
MX
31ms
AAAA
41ms
TXT
178ms
CAA
34ms
HTTPS
34ms
TLSA
661ms
SOA
0ms
MTA-STS
54ms
DNSSEC
110ms
SRV
57ms
Total
1422ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-15 07:28:44 1960ms 2 NS 1 A 1 MX 🔒 Secure
2026-10-12 01:31:58 2327ms 2 NS 1 A 1 MX 🔒 Secure
2026-10-01 06:46:38 688ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-13 09:22:28 shown 1422ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-10 19:52:10 1066ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-04 09:17:24 1836ms 2 NS 1 A 1 MX 🔒 Secure
2026-09-01 13:32:45 863ms 2 NS 1 A 1 MX 🔒 Secure
2026-08-11 18:04:40 4263ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-27 06:36:05 5250ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-18 09:58:57 8989ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-15 06:18:56 2312ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-13 16:19:13 1238ms 2 NS 1 A 1 MX 🔒 Secure
2026-07-11 20:39:37 1113ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-25 00:18:08 3170ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-23 19:48:07 1493ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-21 18:35:28 1158ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 16:44:20 1215ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-17 06:15:26 19944ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-17 06:13:28 1751ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-17 06:00:11 685ms 2 NS 1 A 1 MX 🔒 Secure
2026-06-17 06:00:07 974ms 2 NS 1 A 1 MX 🔒 Secure
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