cosis.dk

📜 Historical scan 2026-06-16 22:31:04 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cosis.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 16 November 2001 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.73.109.195 is hosted by DKTV A/S (AS15516) in Denmark. Mail is handled by smtp.cosis.dk. The zone is DNSSEC-signed and validates, has no 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 40ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	—	—	—
ns02.one.com	—	—	—

🌍 A Records#

1 records 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.73.109.195	—	ip1.c232.ksv340.cust.comxnet.dk	AS15516	DKTV A/S	87.72.0.0/15	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	smtp.cosis.dk	87.73.109.195	ip1.c232.ksv340.cust.comxnet.dk	AS15516 DKTV A/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 149ms

TXT Record
v=spf1 ip4:87.73.109.194 ip4:87.73.109.195 -all

✉️ SPF#

Policy	Record (cosis.dk)
-all (hard fail)	v=spf1 ip4:87.73.109.194 ip4:87.73.109.195 -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

1 records 37ms

Flags	Tag	Value
128	issue	letsencrypt.org

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-11 19:15:53

www	87.73.109.195 (AS15516) (address records, no CNAME)
www vs bare domain	Same network cosis.dk: 87.73.109.195 (AS15516) www.cosis.dk: 87.73.109.195 (AS15516)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

128ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

38ms

Field	Value
Serial	2026061101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-11 19:44:38

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2001-11-16
Expires	2026-12-31 (70d)

🔗 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#

40ms

38ms

AAAA

36ms

TXT

149ms

CAA

37ms

HTTPS

39ms

TLSA

177ms

SOA

38ms

MTA-STS

41ms

DNSSEC

128ms

SRV

0ms

Total

646ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-11 19:15:53	557ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 07:52:41	451ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-14 13:33:00	1392ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 00:50:54	632ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 04:37:41	2405ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-17 13:04:09	1878ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 22:43:48	1509ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 22:31:04 shown	646ms	2 NS 1 A 1 MX	🔒 Secure