cerix.dk

📜 Historical scan 2026-09-16 09:55:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cerix.dk is a .dk domain served by 2 nameservers (ns1.wannafind.dk, ns2.wannafind.dk). It was registered on 14 December 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.40.66.164 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by cerix-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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#

2 records 142ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.wannafind.dk	185.25.141.6 2a02:2339:4006:103:1c:3f6d:daba:dee	ns1.wannafind.dk ns1.wannafind.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.wannafind.dk	2a02:2339:1:104::daba:daa 91.197.248.69	ns2.wannafind.dk ns2.wannafind.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 147ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.40.66.164	900s	server.cerix.dk	AS24940	Hetzner Online GmbH	188.40.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 126ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	cerix-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::9 2a01:111:f403:ca04::a 2a01:111:f403:ca09::24 52.101.103.36 52.101.185.21 52.101.209.31 52.101.68.10	mail-db5pr02cu00100.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 52.98.179.120
🔶 Autoconfig	autoconfig-mf.wannafind.dk → 94.231.108.78

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

7 records 580ms

TXT Record
apple-domain-verification=c9cmv9PPcNXRy5Jc
google-site-verification=2DjG08OLfQxPedUZSUEE5pfECKA2xUXNWwAgIE7QiH4
google-site-verification=8y42LQATBOkirqwZPXoruJ-1_NWfJo6xtU2AXYUgswQ
google-site-verification=ATr8EUPattpjk0DyNnAX2Ii6LoI710fKAeG3SrQZzy0
google-site-verification=UkqcmAIZ4ty1ytNchomDPjWJWpH7Z8DEnUEPyYLqwhs
MS=ms11660179
v=spf1 ip4:130.185.143.230 ip4:13.81.106.157 ip4:188.40.66.164 include:spf_1.cerix.dk include:spf.wannafind.dk include:spf.protection.outlook.com include:_spf.amocrmmail.com include:sendgrid.net ~all

✉️ SPF#

Policy	Record (cerix.dk)
~all (soft fail)	v=spf1 ip4:130.185.143.230 ip4:13.81.106.157 ip4:188.40.66.164 include:spf_1.cerix.dk include:spf.wannafind.dk include:spf.protection.outlook.com include:_spf.amocrmmail.com include:sendgrid.net ~all

📨 DMARC#

Policy	Record (_dmarc.cerix.dk)
p=reject	v=DMARC1;p=reject; rua=mailto:dmarc_agg@vali.email,mailto:valimail@cerix.dk;

📬 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 2026-10-16 01:44:29

www	188.40.66.164 (AS24940) (address records, no CNAME)
www vs bare domain	Same network cerix.dk: 188.40.66.164 (AS24940) www.cerix.dk: 188.40.66.164 (AS24940)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

4 found

Selector	CNAME	Key
s1	s1.domainkey.u2534942.wl193.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u2534942.wl193.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector1	selector1-cerix-dk._domainkey.cerix.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-cerix-dk._domainkey.cerix.onmicrosoft.com	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: 8/10 · policy: ~all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

195ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026091501
Primary NS (MNAME)	ns1.wannafind.dk
Responsible (RNAME)	hostmaster@wannafind.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-20 02:42:42

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-12-14
Expires	2026-12-31 (71d)

🔗 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#

142ms

147ms

126ms

AAAA

138ms

TXT

580ms

CAA

101ms

HTTPS

147ms

TLSA

239ms

SOA

0ms

MTA-STS

136ms

DNSSEC

195ms

SRV

481ms

Total

1991ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 01:44:29	902ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-13 23:37:11	2209ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 08:21:46	946ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-16 09:55:32 shown	1991ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-28 08:50:29	673ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-01 07:37:50	1332ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 19:15:30	1594ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 17:31:24	1184ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 20:10:52	697ms	2 NS 1 A 1 MX	🔒 Secure