sekr.dk

📜 Historical scan 2026-06-17 17:17:52 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sekr.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 25 August 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by sekr-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 143ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 104ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.110.140	—	vps716.basicserver.io	AS48854	—	—	—	—

📧 MX Records#

1 records 106ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	sekr-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca04::d 2a01:111:f403:ca09::6 2a01:111:f403:ca09::8 52.101.68.15 52.101.73.153 52.101.73.26 52.101.73.8	mail-db5pr02cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am0pr04cu00500.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

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 204ms

TXT Record
7tqk3mrG5hIjoTWzPzx0xLOaUBC2xQ4cDVwMStzk3jfIDvh+uXfjPpFA5gdAvrSDrf4ttl7Rhdt9EucNCBglBQ==
MS=ms30331586
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.winkas.net include:spf.mandrillapp.com include:u1491158.wl159.sendgrid.net ip4:94.231.110.140 ip4:94.231.110.141 -all

✉️ SPF#

Policy	Record (sekr.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:spf.winkas.net include:spf.mandrillapp.com include:u1491158.wl159.sendgrid.net ip4:94.231.110.140 ip4:94.231.110.141 -all

📨 DMARC#

Policy	Record (_dmarc.sekr.dk)
p=reject	v=DMARC1;p=reject;sp=reject;pct=100;adkim=s;aspf=s;rua=mailto:dmarc_agg@vali.email;fo=1

📬 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 2026-10-11 19:26:20

www	94.231.110.140 (AS48854) (address records, no CNAME)
www vs bare domain	Same network sekr.dk: 94.231.110.140 (AS48854) www.sekr.dk: 94.231.110.140 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

3 found

Selector	CNAME	Key
s1	s1.domainkey.u1491158.wl159.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u1491158.wl159.sendgrid.net	RSA · ~1024 bit below 2048 bit
selector2	selector2-sekr-dk._domainkey.sekr.onmicrosoft.com	RSA · ~1024 bit below 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: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

181ms

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

🏷️ SOA#

134ms

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 19:40:53

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2014-08-25
Expires	2027-08-31 (317d)

🔗 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#

143ms

104ms

106ms

AAAA

98ms

TXT

204ms

CAA

95ms

HTTPS

91ms

TLSA

363ms

SOA

134ms

MTA-STS

136ms

DNSSEC

181ms

SRV

0ms

Total

1241ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-11 19:26:20	1148ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 05:49:21	1184ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 22:09:22	1676ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 22:38:26	3503ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-18 05:58:28	2349ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-16 23:25:47	7126ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-01 00:27:39	1177ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 17:17:52 shown	1241ms	2 NS 1 A 1 MX	🔒 Secure