optinor.dk

📜 Historical scan 2026-06-23 16:04:53 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optinor.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 23 January 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.4.121.70 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed but currently fails validation, 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#

3 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.4.121.70	3600s	cp07.nordicway.dk	AS24940	Hetzner Online GmbH	46.4.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

5 records 63ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c03::1b	rd-in-f26.1e100.net rc-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.211.26 2404:6800:4000:1025::1b	lcbomp-in-f26.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	192.178.230.27 2a00:1450:4025:c01::1a	yunrtab-in-f27.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	173.194.43.26 2404:6800:4008:c01::1a	yudlsqd-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	46.4.121.70
🔶 Autoconfig	46.4.121.70

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

5 records 136ms

TXT Record
brevo-code:3d732082505e2f369dbec265da01996e
google-site-verification=fkVlmgZso0W_I9qr58AIRHYMSSEcWW_flMxdo9_W8yc
google-site-verification=sf_69WA76McCA82mW2aYz4_v2vwIQLCz4odhV2iIvRI
google-site-verification=xahb_Zv2Y73sHduPhy9INjhDzWtP_ekzAWsZvD4P4RU
v=spf1 +a include:_spf.google.com include:spf.simply.com include:relay.mailchannels.net -all

✉️ SPF#

Policy	Record (optinor.dk)
-all (hard fail)	v=spf1 +a include:_spf.google.com include:spf.simply.com include:relay.mailchannels.net -all

📨 DMARC#

Policy	Record (_dmarc.optinor.dk)
p=none (monitor only)	v=DMARC1;p=none;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;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 2026-10-13 06:33:06

www CNAME	optinor.dk (all on optinor.dk) → 46.4.121.70 (AS24940)
www vs bare domain	Same network optinor.dk: 46.4.121.70 (AS24940) www.optinor.dk: 46.4.121.70 (AS24940)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit
google	—	RSA · ~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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

82ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'optinor.dk/A/IN': 127.0.0.1#53

🏷️ SOA#

35ms

Field	Value
Serial	2025092403
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-06 01:08:28

Field	Value
Registrar	Simply.com A/S
Registered	2023-01-23
Expires	2027-01-22 (88d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

43ms

63ms

AAAA

35ms

TXT

136ms

CAA

40ms

HTTPS

34ms

TLSA

53ms

SOA

35ms

MTA-STS

71ms

DNSSEC

82ms

SRV

116ms

Total

669ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 06:33:06	1017ms	3 NS 1 A 5 MX	🔒 Secure
2026-10-02 20:58:53	3059ms	3 NS 1 A 5 MX	🔒 Secure
2026-07-03 04:02:40	819ms	3 NS 1 A 5 MX	🔒 Secure
2026-06-23 16:04:53 shown	669ms	3 NS 1 A 5 MX	⚠️ Bogus
2026-06-18 06:05:21	875ms	3 NS 1 A 5 MX	🔒 Secure