cogentico.dk

📜 Historical scan 2026-10-02 13:31:05 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cogentico.dk is a .dk domain served by 2 nameservers (kolton.ns.cloudflare.com, tina.ns.cloudflare.com). It was registered on 6 March 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.89.98 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route3.mx.cloudflare.net, route1.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 37ms

Nameserver	IP addresses	PTR	ASN / ISP
kolton.ns.cloudflare.com	108.162.195.25 162.159.44.25 172.64.35.25 2606:4700:58::a29f:2c19 2803:f800:50::6ca2:c319 2a06:98c1:50::ac40:2319	kolton.ns.cloudflare.com kolton.ns.cloudflare.com kolton.ns.cloudflare.com kolton.ns.cloudflare.com kolton.ns.cloudflare.com kolton.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tina.ns.cloudflare.com	108.162.192.230 172.64.32.230 173.245.58.230 2606:4700:50::adf5:3ae6 2803:f800:50::6ca2:c0e6 2a06:98c1:50::ac40:20e6	tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.89.98	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.140.15	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 48ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
39	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
74	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
86	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.89.98
🔶 Autoconfig	104.21.89.98

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3036::ac43:8c0f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:5962	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.89.98,172.67.140.15 ech=AEX+DQBBwwAgACB94MZMaiyo1tlSg6QRYihxVxg8tzDJq+uf+2NO7isrXAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::ac43:8c0f,2606:4700:3037::6815:5962

📝 TXT Records#

1 records 214ms

TXT Record
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF#

Policy	Record (cogentico.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~all

📨 DMARC#

Policy	Record (_dmarc.cogentico.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 2026-10-12 04:34:33

www	104.21.89.98 172.67.140.15 2606:4700:3036::ac43:8c0f 2606:4700:3037::6815:5962 (AS13335) (address records, no CNAME)
www vs bare domain	Same network cogentico.dk: 104.21.89.98 172.67.140.15 2606:4700:3036::ac43:8c0f 2606:4700:3037::6815:5962 (AS13335) www.cogentico.dk: 104.21.89.98 172.67.140.15 2606:4700:3036::ac43:8c0f 2606:4700:3037::6815:5962 (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

6 found

Selector	CNAME	Key
default	—	Revoked (empty key)
dkim	—	Revoked (empty key)
k1	—	Revoked (empty key)
mail	—	Revoked (empty key)
s1	—	Revoked (empty key)
s2	—	Revoked (empty key)

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: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

9 records 102ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…

🔐 DNSSEC#

82ms

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

🏷️ SOA#

44ms

Field	Value
Serial	2415107003
Primary NS (MNAME)	kolton.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 01:14:27

Field	Value
Registrar	DANDOMAIN A/S
Registered	2026-03-06
Expires	2027-03-05 (135d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

39ms

48ms

AAAA

38ms

TXT

214ms

CAA

38ms

HTTPS

42ms

TLSA

102ms

SOA

44ms

MTA-STS

71ms

DNSSEC

82ms

SRV

79ms

Total

916ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 04:34:33	2373ms	2 NS 2 A 3 MX	🔓 Insecure
2026-10-10 00:37:14	3908ms	2 NS 2 A 3 MX	🔓 Insecure
2026-10-02 13:31:05 shown	916ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-23 20:29:03	950ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-22 08:33:58	3853ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-15 20:14:44	1199ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-27 21:02:37	1178ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-25 02:37:10	1326ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-07 03:12:54	10213ms	2 NS 2 A 3 MX	❓ Unknown
2026-07-19 03:33:19	2573ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-09 02:59:33	10129ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-01 23:56:58	1744ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-16 21:41:45	708ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-16 21:40:23	985ms	2 NS 2 A 3 MX	🔓 Insecure