siersbo.dk

📜 Historical scan 2026-06-17 22:02:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

siersbo.dk is a .dk domain served by 4 nameservers (ns1.bdm.microsoftonline.com, ns2.bdm.microsoftonline.com, ns3.bdm.microsoftonline.com and 1 more). It was registered on 29 January 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.250.163.48 is hosted by Cibicom A/S (AS3342) in Denmark. Mail is handled by siersbo-dk.mail.protection.outlook.com. 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 68ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.bdm.microsoftonline.com	13.107.236.208 2603:1061:0:700::d0	ns1-208.azure-dns.com ns1-208.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2.bdm.microsoftonline.com	150.171.21.208 2620:1ec:8ec:700::d0	ns2-208.azure-dns.net ns2-208.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3.bdm.microsoftonline.com	204.14.183.208 2a01:111:4000:700::d0	ns3-208.azure-dns.org ns3-208.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4.bdm.microsoftonline.com	208.84.5.208 2620:1ec:bda:700::d0	ns4-208.azure-dns.info ns4-208.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records#

1 records 64ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
157.250.163.48	—	php81serv1.webhosting.dk	AS3342	Cibicom A/S	157.250.160.0/20	🇩🇰 Denmark	—

📧 MX Records#

1 records 104ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	siersbo-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::1 2a01:111:f403:ca09::2 2a01:111:f403:ca09::f 52.101.68.29 52.101.73.11 52.101.73.153 52.101.73.26	mail-dbapr03cu00100.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.149.136
🔶 Autoconfig	php73serv4.webhosting.dk → 157.250.163.38

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 142ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 222ms

TXT Record
mscid=SZ+oKseGYrQn4DPPikY8xrDnTmMPkezEkhga6hGYjzM0TbbdCzjntWICD6JmjfOKTOfBCDuGQzLs5kzlgBBQKA==
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (siersbo.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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 14:03:45

www CNAME	php73serv4.webhosting.dk (all on webhosting.dk) → 157.250.163.38 (AS3342)
www vs bare domain	Same network siersbo.dk: 157.250.163.48 (AS3342) www.siersbo.dk: 157.250.163.38 (AS3342)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

103ms

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

🏷️ SOA#

76ms

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

📋 Registration#

WHOIS fetched 2026-10-06 16:11:20

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-01-29
Expires	2027-01-31 (106d)

📋 WHOIS#

⏱️ Lookup Timing#

68ms

64ms

104ms

AAAA

106ms

TXT

222ms

CAA

70ms

HTTPS

77ms

TLSA

143ms

SOA

76ms

MTA-STS

114ms

DNSSEC

103ms

SRV

142ms

Total

1027ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-29 23:27:26	662ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-25 12:44:51	10387ms	4 NS 1 A 1 MX	🔓 Insecure
2026-09-12 15:11:04	664ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-29 18:27:17	991ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-25 14:47:45	881ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-24 12:52:52	1176ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 09:18:06	1123ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-17 22:02:29 shown	1027ms	4 NS 1 A 1 MX	🔓 Insecure