123456789.dk

📜 Historical scan 2026-10-02 01:33:05  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

123456789.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was registered on 4 January 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.228.91.36 is hosted by Altibox Danmark AS (AS214875) in Denmark. Mail is handled by mail.123456789.dk. 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#

4 records   60ms
NameserverIP addressesPTRASN / 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
ns4.simply.com 91.197.248.80 ns4.simply.com AS48854 team.blue Denmark A/S

🌍 A Records#

1 records   52ms
IPTTLPTRASNISP / OrgCIDRCountryCity
188.228.91.36 3600s 188.228.91.36.dynamic.altibox.net AS214875 Altibox Danmark AS 188.228.88.0/22 🇩🇰 Denmark Holstebro

📧 MX Records#

1 records   49ms
PriorityTTLMail ServerIP addressesPTRASN
10 3600s mail.123456789.dk 188.228.91.36 188.228.91.36.dynamic.altibox.net AS214875 Altibox Danmark AS

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover188.228.91.36
🔶 Autoconfig188.228.91.36

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records   157ms
TXT Record
google-site-verification=K47n1CWFhZSTnxpxmnmxUOdw01CN_0tQlfXt1nEy9Hs
v=spf1 a mx a:mail.1two.dk a:mail.123456789.dk a:123456789.dk ip4:94.231.106.0/24 ip4:188.228.68.23 ip4:212.97.141.0/23 include:smtp.simply.com include:mail.123456789.dk include:123456789.dk ?all

✉️ SPF#

PolicyRecord (123456789.dk)
?all (neutral) v=spf1 a mx a:mail.1two.dk a:mail.123456789.dk a:123456789.dk ip4:94.231.106.0/24 ip4:188.228.68.23 ip4:212.97.141.0/23 include:smtp.simply.com include:mail.123456789.dk include:123456789.dk ?all

📨 DMARC#

PolicyRecord (_dmarc.123456789.dk)
p=none (monitor only) v=DMARC1; p=none; rua=mailto:dmarc@1two.dk

📬 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 2026-10-13 16:33:38
www188.228.91.36 (AS214875) (address records, no CNAME)
www vs bare domainSame network
123456789.dk: 188.228.91.36 (AS214875)
www.123456789.dk: 188.228.91.36 (AS214875)
WildcardYes: any name under the zone resolves
Denial of existenceNSEC zone can be walked (all names enumerable)
CDS / CDNSKEYPublished: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
mail — 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: 18/10 · policy: ?all

  • error include:mail.123456789.dk has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)
  • error include:123456789.dk includes itself (directly or via another include): receivers return permerror
  • warn "?all" is neutral: it gives receivers no guidance, much like having no SPF
  • error 18 DNS lookups: the limit is 10, so a receiver whose evaluation gets past the 10th returns permerror (SPF fails)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

133ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

53ms
FieldValue
Serial2026100100
Primary NS (MNAME)ns1.simply.com
Responsible (RNAME)hostmaster@simply.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)3600s

📋 Registration#

WHOIS fetched 2026-10-11 01:22:12
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2016-01-04
Expires2027-01-31 (106d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
60ms
A
52ms
MX
49ms
AAAA
42ms
TXT
157ms
CAA
52ms
HTTPS
44ms
TLSA
189ms
SOA
53ms
MTA-STS
75ms
DNSSEC
133ms
SRV
71ms
Total
986ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-13 16:33:38 894ms 4 NS 1 A 1 MX 🔒 Secure
2026-10-02 01:33:05 shown 986ms 4 NS 1 A 1 MX 🔒 Secure
2026-08-27 07:59:13 475ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-23 16:06:48 1170ms 4 NS 1 A 1 MX 🔒 Secure
2026-06-21 10:47:18 1190ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-16 12:43:22 556ms 4 NS 1 A 1 MX 🔒 Secure
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