cl.dk

📜 Historical scan 2026-07-22 10:02:43 · ← Latest scan

cl.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by cl-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 45ms

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 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cl-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::f 2a01:111:f403:ca09::6 2a01:111:f403:ca09::7 52.101.68.29 52.101.73.15 52.101.73.30 52.101.73.8	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00306.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

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8
🔶 Autoconfig	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

3 records 8245ms

TXT Record
as=1487608212
MS=ms90292396
v=spf1 include:spf.protection.outlook.com include:authsmtp.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.cl.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 2026-09-30 00:42:29

www CNAME	autodiscover.outlook.com (all on outlook.com)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.cl.dk	autodiscover.outlook.com

🔗 TLSA / DANE

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

🔐 DNSSEC

151ms

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

🏷️ SOA

48ms

Field	Value
Serial	2026071701
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

45ms

35ms

52ms

AAAA

36ms

TXT

8245ms

CAA

53ms

HTTPS

71ms

TLSA

126ms

SOA

48ms

MTA-STS

154ms

DNSSEC

151ms

SRV

209ms

Total

25351ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-13 10:25:59	1462ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-27 09:22:23	1466ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-14 04:54:08	1748ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-22 10:02:43 shown	25351ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-18 04:35:31	6724ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-13 13:04:44	9415ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-02 00:35:42	1271ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-16 21:05:22	1801ms	2 NS 0 A 1 MX	🔒 Secure