otto-duborg.dk

📜 Historical scan 2026-06-25 09:36:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

otto-duborg.dk is a .dk domain served by 2 nameservers (dns1.viakom.de, dns2.viakom.de). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 85.215.233.7 is hosted by IONOS SE (AS8560) in Germany. Mail is handled by ottoduborg-dk01b.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a 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#

2 records 73ms

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#

1 records 60ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
85.215.233.7	300s	webserver-i-04.viakom.cloud	AS8560	IONOS SE	85.215.224.0/20	🇩🇪 Germany	—

📧 MX Records#

1 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	ottoduborg-dk01b.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca04::b 2a01:111:f403:ca09::1 2a01:111:f403:ca09::b 52.101.68.12 52.101.68.18 52.101.73.11 52.101.73.16	mail-du0pr03cu00102.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as2pr05cu00100.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 → 40.104.116.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 277ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 22:15:41

www	NXDOMAIN
www vs bare domain	Neither resolves otto-duborg.dk: no address www.otto-duborg.dk: no address
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-ottoduborg-dk01b._domainkey.grenzhandel.onmicrosoft.com	RSA · ~1024 bit below 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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

132ms

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	2026062307
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 yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

73ms

60ms

48ms

AAAA

66ms

TXT

277ms

CAA

64ms

HTTPS

51ms

TLSA

558ms

SOA

0ms

MTA-STS

105ms

DNSSEC

132ms

SRV

109ms

Total

1492ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 22:15:41	1855ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-30 23:32:39	1249ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-30 02:43:04	1705ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-27 13:48:04	3093ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-12 15:20:57	10887ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-01 06:27:21	1396ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-25 09:36:34 shown	1492ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:45:53	5803ms	2 NS 0 A 0 MX	🔓 Insecure