esb.dk

📜 Historical scan 2026-06-24 01:46:03  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

esb.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 14 September 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 212.237.249.12 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.dandomain.dk, mx2.dandomain.dk. The zone is DNSSEC-signed and validates, has no 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#

2 records   47ms
NameserverIP addressesPTRASN / ISP
ns.dandomain.dk 185.25.141.3
2a02:2339:4006:109::dd		 ns.dandomain.dk
ns.dandomain.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S
ns2.dandomain.dk 2a02:2339:1:108::dd:dd
91.197.248.66		 ns2.dandomain.dk
ns2.dandomain.dk		 AS48854 team.blue Denmark A/S
AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   50ms
IPTTLPTRASNISP / OrgCIDRCountryCity
212.237.249.12 3600s lb1.builder.nu AS48854 team.blue Denmark A/S 212.237.248.0/23 🇩🇰 Denmark —

📧 MX Records#

2 records   38ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mx1.dandomain.dk 212.237.249.50 mx1.dandomain.dk AS48854 team.blue Denmark A/S
20 3600s mx2.dandomain.dk 46.36.209.11 mx2.dandomain.dk AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscoverautodiscover-mf.dandomain.dk → 212.237.249.98
🔶 Autoconfigautoconfig-mf.dandomain.dk → 212.237.249.54

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   287ms
TXT Record
v=spf1 include:spf.dandomain.dk include:mailgun.org ~all

✉️ SPF#

PolicyRecord (esb.dk)
~all (soft fail) v=spf1 include:spf.dandomain.dk include:mailgun.org ~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#

latest probe, not this scan · checked 2026-10-08 16:11:33
www212.237.249.12 (AS48854) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves
Denial of existenceNSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 8/10 · policy: ~all

  • warn 8 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#

101ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

94ms
FieldValue
Serial2023061501
Primary NS (MNAME)ns.dandomain.dk
Responsible (RNAME)hostmaster@dandomain.dk
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)300s

📋 Registration#

WHOIS fetched 2026-10-11 07:55:29
FieldValue
RegistrarDANDOMAIN A/S
Registered2011-09-14
Expires2027-09-30 (347d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
47ms
A
50ms
MX
38ms
AAAA
38ms
TXT
287ms
CAA
95ms
HTTPS
96ms
TLSA
59ms
SOA
94ms
MTA-STS
47ms
DNSSEC
101ms
SRV
93ms
Total
778ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-08-26 06:31:32 609ms 2 NS 1 A 2 MX 🔒 Secure
2026-06-24 01:46:03 shown 778ms 2 NS 1 A 2 MX 🔒 Secure
2026-06-17 08:16:03 527ms 2 NS 1 A 2 MX 🔒 Secure
2026-06-17 08:15:15 903ms 2 NS 1 A 2 MX 🔒 Secure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone