sirek.dk

📜 Historical scan 2026-07-12 16:25:01 · ← Latest scan

sirek.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). Mail is handled by sirek-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 29ms

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

🌍

No A records found

📧 MX Records

1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sirek-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::6 2a01:111:f403:ca04::c 2a01:111:f403:ca09::c 52.101.68.27 52.101.68.36 52.101.68.8 52.101.73.153	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records

2 records 150ms

TXT Record
MS=ms54333493
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (sirek.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.sirek.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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 2026-09-29 17:52:09

www CNAME	prodnet32.sharepointonline.com (all on sharepointonline.com) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.sirek.dk
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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE

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

🔐 DNSSEC

61ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA

23ms

Field	Value
Serial	2026070901
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

29ms

30ms

AAAA

30ms

TXT

150ms

CAA

28ms

HTTPS

30ms

TLSA

617ms

SOA

23ms

MTA-STS

40ms

DNSSEC

61ms

SRV

39ms

Total

5500ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-07 20:34:40	1019ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-09 06:53:54	9060ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-12 16:25:01 shown	5500ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-28 12:31:27	654ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-20 01:47:44	899ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-18 05:23:30	962ms	2 NS 0 A 1 MX	🔒 Secure