seldenmast.dk DNS records

🖥️ Nameservers4 records 66ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1-08.azure-dns.com	13.107.236.8 2603:1061:0:700::8	ns1-08.azure-dns.com ns1-08.azure-dns.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns2-08.azure-dns.net	150.171.21.8 2620:1ec:8ec:700::8	ns2-08.azure-dns.net ns2-08.azure-dns.net	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns3-08.azure-dns.org	204.14.183.8 2a01:111:4000:700::8	ns3-08.azure-dns.org ns3-08.azure-dns.org	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
ns4-08.azure-dns.info	208.84.5.8 2620:1ec:bda:700::8	ns4-08.azure-dns.info ns4-08.azure-dns.info	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🌍 A Records1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
213.136.57.250	14400s	250.248-28.136.213.in-addr.arpa	AS8473	Bahnhof AB	213.136.32.0/19	🇸🇪 Sweden	—

📧 MX Records1 records 67ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	3600s	seldenmast-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::f 2a01:111:f403:ca09::6 2a01:111:f403:ca09::7 52.101.73.19 52.101.73.24 52.101.73.6 52.101.73.8	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as8pr05cu00300.inbound.protection.outlook.com mail-am6pr04cu00306.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 52.98.178.232

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 140ms

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

📝 TXT Records3 records 235ms

TXT Record
hWeNqxxR2SST2rl/2BY6Wsj7jh4q+mU2XtwZvOStMQE3B3Qn6pBgDCkpjXQx3MyYNl6KPJmo71wR4bYs8oZ1OA==
MS=ms47288124
v=spf1 include:spf.protection.outlook.com ip4:213.136.57.250 -all

✉️ SPF

Policy	Record (seldenmast.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:213.136.57.250 -all

📨 DMARC

Policy	Record (_dmarc.seldenmast.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc-reports@Selden.onmicrosoft.com

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC83ms

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

🏷️ SOA65ms

Field	Value
Serial	2026042201
Primary NS (MNAME)	ns1-08.azure-dns.com
Responsible (RNAME)	systeminfo@helpdesk.webland.se
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

66ms

A

44ms

MX

67ms

AAAA

64ms

TXT

235ms

CAA

69ms

HTTPS

69ms

TLSA

162ms

SOA

65ms

MTA-STS

57ms

DNSSEC

83ms

SRV

140ms

Total

984ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-22 11:42:49	984ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 17:20:44	1063ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 00:09:52	1096ms	4 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 13:29:47	1129ms	4 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-17 13:51:02	3263ms	4 NS 1 A 1 MX	🔓 Insecure	View