gufler.dk DNS records

🖥️ Nameservers2 records 69ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.onwelcom.dk	185.51.79.241	ns1.onwelcom.dk	AS205984 Powernet Aps
ns2.onwelcom.dk	185.51.79.251	—	AS205984 Powernet Aps

🌍 A Records1 records 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.51.79.250	86400s	web01.onwelcom.dk	AS205984	Powernet Aps	185.51.78.0/23	🇩🇰 Denmark	—

📧 MX Records1 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	86400s	gufler-dk.mail.eo.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::a 2a01:111:f403:ca09::2 2a01:111:f403:ca09::20 52.101.209.153 52.101.68.10 52.101.68.32 52.101.73.26	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db3pr0202cu00200.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 86ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 216ms

TXT Record
MS=ms60702830
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (gufler.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

🔗 TLSA / DANE

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

🔐 DNSSEC102ms

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

🏷️ SOA0ms

Field	Value
Serial	2016041506
Primary NS (MNAME)	ns1.onwelcom.dk
Responsible (RNAME)	hostmaster@gufler.dk
Refresh	3600s
Retry	600s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

69ms

A

56ms

MX

80ms

AAAA

54ms

TXT

216ms

CAA

61ms

HTTPS

72ms

TLSA

99ms

SOA

0ms

MTA-STS

101ms

DNSSEC

102ms

SRV

86ms

Total

1010ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 10:15:25	1010ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-27 04:23:41	3566ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-03 08:21:23	4620ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-27 21:00:36	5408ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-25 23:03:00	2065ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-24 09:33:16	4613ms	2 NS 1 A 1 MX	❓ Unknown	View
2026-06-20 23:19:17	4572ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 00:23:14	4963ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 10:50:25	4692ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 10:45:47	1052ms	2 NS 1 A 1 MX	🔓 Insecure	View