5100.dk

📜 Historical scan 2026-09-25 04:40:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

5100.dk is a .dk domain served by 4 nameservers (ns1-09.azure-dns.com, ns2-09.azure-dns.net, ns3-09.azure-dns.org and 1 more). It was registered on 1 December 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.54.56.67 is hosted by Microsoft Corporation (AS8075) in Ireland. Mail is handled by mx.spamstopper.dk, popmail.spamstopper.dk. The zone is not DNSSEC-signed, 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#

4 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1-09.azure-dns.com	13.107.236.9 2603:1061:0:700::9	ns1-09.azure-dns.com ns1-09.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2-09.azure-dns.net	150.171.21.9 2620:1ec:8ec:700::9	ns2-09.azure-dns.net ns2-09.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3-09.azure-dns.org	204.14.183.9 2a01:111:4000:700::9	ns3-09.azure-dns.org ns3-09.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4-09.azure-dns.info	208.84.5.9 2620:1ec:bda:700::9	ns4-09.azure-dns.info ns4-09.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records#

1 records 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.54.56.67	3600s	—	AS8075	Microsoft Corporation	20.48.0.0/12	🇮🇪 Ireland	Dublin

📧 MX Records#

2 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx.spamstopper.dk	5.186.77.109	5.186.77.109.dhcp.fibianet.dk	AS44869 FIBIA P/S
15	3600s	popmail.spamstopper.dk	5.186.77.111	5.186.77.111.dhcp.fibianet.dk	AS44869 FIBIA P/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 165ms

TXT Record
v=spf1 a mx ip4:5.179.93.117 ip4:89.239.194.29 ~all

✉️ SPF#

Policy	Record (5100.dk)
~all (soft fail)	v=spf1 a mx ip4:5.179.93.117 ip4:89.239.194.29 ~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 2026-10-10 03:21:35

www	NXDOMAIN
www vs bare domain	www does not resolve 5100.dk: 20.54.56.67 (AS8075) www.5100.dk: no address (all like this)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u22435618.wl119.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u22435618.wl119.sendgrid.net	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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

82ms

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

🏷️ SOA#

0ms

Field	Value
Serial	1
Primary NS (MNAME)	ns1-09.azure-dns.com
Responsible (RNAME)	azuredns-hostmaster@microsoft.com
Refresh	3600s
Retry	300s
Expire	2419200s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-07 08:22:34

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-12-01
Expires	2027-12-31 (438d)

📋 WHOIS#

⏱️ Lookup Timing#

47ms

49ms

AAAA

43ms

TXT

165ms

CAA

48ms

HTTPS

47ms

TLSA

90ms

SOA

0ms

MTA-STS

68ms

DNSSEC

82ms

SRV

67ms

Total

554ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 01:10:00	495ms	4 NS 1 A 2 MX	🔓 Insecure
2026-09-25 04:40:39 shown	554ms	4 NS 1 A 2 MX	🔓 Insecure
2026-07-01 16:26:44	754ms	4 NS 1 A 2 MX	🔓 Insecure
2026-06-16 12:50:22	1558ms	4 NS 1 A 2 MX	🔓 Insecure