cohero.dk

📜 Historical scan 2026-10-10 18:57:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cohero.dk is a .dk domain served by 3 nameservers (helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com). It was registered on 3 January 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 216.198.79.1 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mail.cohero.dk. 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#

3 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
helium.ns.hetzner.de	193.47.99.5 2001:67c:192c::add:5	helium.ns.hetzner.de helium.ns.hetzner.de	AS12337 noris network AG AS12337 noris network AG
hydrogen.ns.hetzner.com	213.133.100.98 2a01:4f8:0:1::add:1098	hydrogen.ns.hetzner.com hydrogen.ns.hetzner.com	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH
oxygen.ns.hetzner.com	2a01:4f8:0:1::add:2992 88.198.229.192	oxygen.ns.hetzner.com oxygen.ns.hetzner.com	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
216.198.79.1	3600s	—	AS16509	Amazon.com, Inc.	216.198.79.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 46ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.cohero.dk	167.235.245.100 2a01:4f8:c010:a48e::1	mail.cohero.dk mail.cohero.dk	AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	mail.cohero.dk → 167.235.245.100
🔶 Autoconfig	mail.cohero.dk → 167.235.245.100

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 328ms

TXT Record
P-z3Yhre5ZE6
v=spf1 mx a:mail.cohero.dk ~all

✉️ SPF#

Policy	Record (cohero.dk)
~all (soft fail)	v=spf1 mx a:mail.cohero.dk ~all

📨 DMARC#

Policy	Record (_dmarc.cohero.dk)
p=quarantine	v=DMARC1; p=quarantine; sp=quarantine;

📬 MTA-STS#

229ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	2026082501
max_age	604800s
Policy MX	mail.cohero.dk

📈 TLSRPT#

Status	Report address (rua)
✓ Enabled	mailto:postmaster@cohero.dk

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-22 03:32:38

www	2.31.72.85 2a01:4f8:c016:c50f::1 (AS24940) (address records, no CNAME)
www vs bare domain	Same network cohero.dk: 2.31.72.85 2a01:4f8:c016:c50f::1 (AS24940) www.cohero.dk: 2.31.72.85 2a01:4f8:c016:c50f::1 (AS24940)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
dkim	—	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: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

63ms

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

🏷️ SOA#

52ms

Field	Value
Serial	2026100900
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 2026-10-21 02:40:09

Field	Value
Registrar	Simply.com A/S
Registered	2026-01-03
Expires	2027-01-02 (68d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

49ms

54ms

46ms

AAAA

52ms

TXT

328ms

CAA

53ms

HTTPS

48ms

TLSA

68ms

SOA

52ms

MTA-STS

229ms

DNSSEC

63ms

SRV

117ms

Total

845ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 03:32:38	793ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-21 02:27:54	862ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-15 22:01:58	1052ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-10 18:57:32 shown	845ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-05 16:05:21	2170ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-18 22:09:11	1846ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-11 20:45:54	4349ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-04 19:06:37	1089ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-30 17:52:32	2034ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-29 12:49:32	722ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-28 11:09:07	606ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-27 10:56:37	1138ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-26 20:18:46	1207ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-22 22:27:38	5460ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-20 22:09:19	5072ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-10 16:29:18	2544ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-17 04:34:14	8922ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-28 12:56:49	1787ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-24 20:07:06	456ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-24 02:01:18	1179ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 21:47:24	426ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 21:41:24	595ms	3 NS 1 A 1 MX	🔓 Insecure