selektro.dk

📜 Historical scan 2026-08-12 19:07:05 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

selektro.dk is a .dk domain served by 2 nameservers (ns1.nrd.dk, ns2.nrd.dk). It was registered on 14 April 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.171 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by selektro-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 8048ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.nrd.dk	208.94.148.4	ns10.dnsmadeeasy.com	AS16552 Tiggee LLC
ns2.nrd.dk	208.80.124.4	ns11.dnsmadeeasy.com	AS16552 Tiggee LLC

🌍 A Records#

1 records 8064ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.171	3600s	prolinux3.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 8056ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	selektro-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::2 2a01:111:f403:ca09::20 2a01:111:f403:ca09::7 52.101.68.21 52.101.68.25 52.101.68.39 52.101.73.11	mail-db7pr03cu00401.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am1pr04cu00103.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 8290ms

TXT Record
MS=ms62984184
v=spf1 a:mx1-sg.systemgruppen.dk a:mx2-sg.systemgruppen.dk include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.centerasecurity.dk -all

✉️ SPF#

Policy	Record (selektro.dk)
-all (hard fail)	v=spf1 a:mx1-sg.systemgruppen.dk a:mx2-sg.systemgruppen.dk include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:_spf.centerasecurity.dk -all

📨 DMARC#

Policy	Record (_dmarc.selektro.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:DMARC@selektro.dk; ruf=mailto:DMARC@selektro.dk; sp=none;

📬 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 2026-10-10 21:48:44

www	185.21.41.171 (AS48854) (address records, no CNAME)
www vs bare domain	Same network selektro.dk: 185.21.41.171 (AS48854) www.selektro.dk: 185.21.41.171 (AS48854)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-selektro-dk._domainkey.selektrodk.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-selektro-dk._domainkey.selektrodk.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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

8091ms

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

🏷️ SOA#

8061ms

Field	Value
Serial	2009010162
Primary NS (MNAME)	ns10.dnsmadeeasy.com
Responsible (RNAME)	dns@dnsmadeeasy.com
Refresh	43200s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	180s

📋 Registration#

WHOIS fetched 2026-10-06 15:19:45

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-04-14
Expires	2027-06-30 (253d)

📋 WHOIS#

⏱️ Lookup Timing#

8048ms

8064ms

8056ms

AAAA

83ms

TXT

8290ms

CAA

8057ms

HTTPS

8058ms

TLSA

131ms

SOA

8061ms

MTA-STS

80ms

DNSSEC

8091ms

SRV

261ms

Total

25106ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 09:05:25	1216ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-02 09:04:19	6103ms	2 NS 0 A 0 MX	❓ Unknown
2026-10-01 06:54:03	1202ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-18 10:12:15	2821ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-12 19:07:05 shown	25106ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-01 00:38:11	846ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 02:36:01	2436ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 06:10:41	1540ms	2 NS 1 A 1 MX	🔓 Insecure