costri.dk

Records from scan: 2026-10-09 13:46:46 · 588ms total · last checked 2026-10-16 23:51 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

costri.dk is a .dk domain served by 3 nameservers (ns1.stom.dk, ns2.stom.dk, ns3.stom.dk). It was registered on 16 December 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.116.13.124 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by mail.costri.dk. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 70ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.stom.dk	172.105.72.183 2a01:7e01::f03c:94ff:fe6a:805d	ns1.dnsresolve.io —	AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud
ns2.stom.dk	152.115.36.124	—	AS31027 GlobalConnect A/S
ns3.stom.dk	212.71.233.109 2a01:7e00::f03c:94ff:fe9f:2cca	212-71-233-109.ip.linodeusercontent.com —	AS63949 Akamai Connected Cloud AS63949 Akamai Connected Cloud

🌍 A Records#

1 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.116.13.124	3600s	s8.stom.dk	AS31027	GlobalConnect A/S	87.116.0.0/18	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 62ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	mail.costri.dk	87.116.13.124	s8.stom.dk	AS31027 GlobalConnect A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	87.116.13.124
🔶 Autoconfig	87.116.13.124

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 137ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	cpanelemaildiscovery.cpanel.net

📝 TXT Records#

1 records 285ms

TXT Record
v=spf1 ip4:87.116.13.124 +a +mx 81.7.161.174 ~all

✉️ SPF#

Policy	Record (costri.dk)
~all (soft fail)	v=spf1 ip4:87.116.13.124 +a +mx 81.7.161.174 ~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#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

checked 2026-10-09 13:46:46

www CNAME	costri.dk (all on costri.dk) → 87.116.13.124 (AS31027)
www vs bare domain	Same network costri.dk: 87.116.13.124 (AS31027) www.costri.dk: 87.116.13.124 (AS31027)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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

error Unknown mechanism "81.7.161.174": receivers treat the record as a permanent error

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.costri.dk	ddW5QbsRO3wiqBEx7xKQiLszbYYnNkkCd2RyfhDsbbk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

87ms

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

🏷️ SOA#

55ms

Field	Value
Serial	2025051299
Primary NS (MNAME)	ns1.stom.dk
Responsible (RNAME)	cpanel@stom.dk
Refresh	3600s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-10 12:29:29

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-12-16
Expires	2026-12-31 (75d)

📋 WHOIS#

⏱️ Lookup Timing#

70ms

51ms

62ms

AAAA

64ms

TXT

285ms

CAA

70ms

HTTPS

41ms

TLSA

95ms

SOA

55ms

MTA-STS

77ms

DNSSEC

87ms

SRV

137ms

Total

588ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 13:46:46 shown	588ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-29 19:44:46	681ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-27 06:56:27	9572ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-02 00:31:15	899ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-16 22:36:06	583ms	3 NS 1 A 1 MX	🔓 Insecure