sonderborg.dk

📜 Historical scan 2026-06-18 04:46:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sonderborg.dk is a .dk domain served by 4 nameservers (ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org and 1 more). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.62.237.14 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by smtp3.sonderborg.dk. The zone is DNSSEC-signed but currently fails validation, 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 63ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1-05.azure-dns.com	13.107.236.5 2603:1061:0:700::5	ns1-05.azure-dns.com ns1-05.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2-05.azure-dns.net	150.171.21.5 2620:1ec:8ec:700::5	ns2-05.azure-dns.net ns2-05.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3-05.azure-dns.org	204.14.183.5 2a01:111:4000:700::5	ns3-05.azure-dns.org ns3-05.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4-05.azure-dns.info	208.84.5.5 2620:1ec:bda:700::5	ns4-05.azure-dns.info ns4-05.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records#

1 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.62.237.14	—	14.1-126.237.62.80.in-addr.arpa www.sonderborg.dk	AS3292	TDC Holding A/S	80.62.0.0/15	🇩🇰 Denmark	Sønderborg

📧 MX Records#

1 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	smtp3.sonderborg.dk	80.62.237.13 80.62.237.13	13.1-126.237.62.80.in-addr.arpa smtp3.sonderborg.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	80.62.237.69

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

3 records 87ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	ex.sONDErbOrg.Dk
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com
_xmpp-server._tcp	0	0	5269	access.soNDErborg.DK

📝 TXT Records#

13 records 306ms

TXT Record
_h3i7kn8g9btajkz0r05egg46uvpi90j
apple-domain-verification=koNv4DPo445jeeuS
apple-domain-verification=PsIuLZGcfvIJg98w
apple-domain-verification=uFI4nQuwf4wpK0nN
globalsign-domain-verification=Oqu2N3NDunVHjXRgY_K3am2P4uwASx_T-vI9FeY2Qx
google-site-verification=xmyxpBQrzP8icqqngLvmA6kcMkkX7wU0J70zOS99Enw
intersight=eb56680c376632e757cfc82e2972f6a618d5f1d32ad59d33801621f97c3fc3f1
MS=ms23808172
OSIAGENTREGURL=https://mdmaw.sonderborg.dk/Deicemanagement/enrollment?AC=SK
PJM-85Y-YYZ
TjBV778izmM/PxSES0ZCfJiulnCdc0WmBjiYNsNJ9z5A3J1xKDN9nGVzNb2NIIKQ4bu9Ee6y9aUXvH6QBYTG5w==
tmes=4f037beadef43e61392ef280da22f5ef
v=spf1 include:_spf_a.sonderborg.dk include:_spf_b.sonderborg.dk -all

✉️ SPF#

Policy	Record (sonderborg.dk)
-all (hard fail)	v=spf1 include:_spf_a.sonderborg.dk include:_spf_b.sonderborg.dk -all

📨 DMARC#

Policy	Record (_dmarc.sonderborg.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:653640a21c83d@dmarc.centerasecurity.com; sp=quarantine; fo=1;

📬 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 2026-10-14 17:23:08

www	80.62.237.40 (AS3292) (address records, no CNAME)
www vs bare domain	Same network sonderborg.dk: 80.62.237.40 (AS3292) www.sonderborg.dk: 80.62.237.40 (AS3292)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY
BIMI	v=BIMI1; l=https://vejledninger.sonderborg.dk/uendelighedstegn_groen_RGB.svg;a=;

✍️ DKIM keys#

2 found

Selector	CNAME	Key
dkim	—	RSA · ~1024 bit below 2048 bit
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: 7/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

76ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'sonderborg.dk/DNSKEY/IN': 127.0.0.1#53

🏷️ SOA#

52ms

Field	Value
Serial	1040115719
Primary NS (MNAME)	ns1-05.azure-dns.com
Responsible (RNAME)	hostmaster@sonderborg.dk
Refresh	43200s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-15 10:05:31

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-01-31
Expires	2028-03-31 (529d)

🔗 Same registrant#

9 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).

Domain	Registrar
centerforverdensmaal.dk	INTERNET 123 ApS
faergen-bitten.dk	DANDOMAIN A/S
mdm-sdb.dk	Punktum dk A/S (direct)
naturkalenderen.dk	INTERNET 123 ApS
psyd.dk	Punktum dk A/S (direct)
sonderborg-kommune.dk	Punktum dk A/S (direct)
sonderborg-ungdomsskole.dk	Punktum dk A/S (direct)
sonderborgkom.dk	Punktum dk A/S (direct)
sonderborgkommune.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

63ms

51ms

49ms

AAAA

62ms

TXT

306ms

CAA

52ms

HTTPS

64ms

TLSA

115ms

SOA

52ms

MTA-STS

56ms

DNSSEC

76ms

SRV

87ms

Total

1090ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 03:24:40	544ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-13 12:02:50	589ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-09 01:27:03	664ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 04:28:52	3531ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-23 12:52:19	1008ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 04:46:56 shown	1090ms	4 NS 1 A 1 MX	⚠️ Bogus