otto-duborg.dk DNS records

🖥️ Nameservers2 records 53ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.viakom.de	85.215.250.53	dns1.viakom.de	AS8560 IONOS SE
dns2.viakom.de	2a01:4f9:c010:51de::1 95.217.133.30	ext-01.viakom.de ext-01.viakom.de	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records

🌍

No A records found

📧 MX Records1 records 58ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	ottoduborg-dk01b.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::5 2a01:111:f403:ca09::20 2a01:111:f403:ca09::8 52.101.68.12 52.101.68.27 52.101.68.3 52.101.68.36	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-db5pr02cu00104.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records4 records 297ms

TXT Record
brevo-code:025c5ffa1b760d5e2dd2c6b32f4dd306
google-site-verification=mBI6TvjtJn8a6OMB9WjU3NOQAQqk5GLLwBIQCdrikEg
gvicRXl+bNaIRzgnMnuAN/9PxoUu7D1YUbhJO8qex3gMT1Mb6xcpUbqYTD4VIrqrYyWUKKOzvbvx7cjswtanUg==
v=spf1 include:spf.protection.outlook.com include:_spf.prod.viakom.de -all

✉️ SPF

Policy	Record (otto-duborg.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf.prod.viakom.de -all

📨 DMARC

Policy	Record (_dmarc.otto-duborg.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.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)

🔐 DNSSEC140ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2026062803
Primary NS (MNAME)	dns1.viakom.de
Responsible (RNAME)	hostmaster@viakom.de
Refresh	43200s
Retry	600s
Expire	2419200s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

53ms

A

65ms

MX

58ms

AAAA

70ms

TXT

297ms

CAA

64ms

HTTPS

59ms

TLSA

258ms

SOA

0ms

MTA-STS

99ms

DNSSEC

140ms

SRV

97ms

Total

1396ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-07-01 06:27:21	1396ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-25 09:36:34	1492ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 13:45:53	5803ms	2 NS 0 A 0 MX	🔓 Insecure	View