c-dalsgaard.dk

📜 Historical scan 2026-07-05 00:24:44 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

c-dalsgaard.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 20 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 178.20.217.251 is hosted by Atea A/S (AS21060) in Denmark. Mail is handled by cdalsgaard-dk0c.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 55ms

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 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
178.20.217.251	3600s	vps2.simpledigital.dk	AS21060	Atea A/S	178.20.216.0/23	🇩🇰 Denmark	—

📧 MX Records#

1 records 1154ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cdalsgaard-dk0c.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09::3 2a01:111:f403:ca09::c 2a01:111:f403:ca09::f 52.101.68.16 52.101.68.29 52.101.68.5 52.101.73.22	mail-db4pr02cu00307.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00106.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	178.20.217.251

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 1164ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 148ms

TXT Record
DZC=5DqXmfq
MS=ms33298783
v=spf1 +ip4:178.20.217.251 +include:spf.protection.outlook.com +include:spf.hosit.dk -all

✉️ SPF#

Policy	Record (c-dalsgaard.dk)
-all (hard fail)	v=spf1 +ip4:178.20.217.251 +include:spf.protection.outlook.com +include:spf.hosit.dk -all

📨 DMARC#

Policy	Record (_dmarc.c-dalsgaard.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 2026-10-10 12:46:45

www	185.130.190.66 (AS210939) (address records, no CNAME)
www vs bare domain	Same network c-dalsgaard.dk: 185.130.190.66 (AS210939) www.c-dalsgaard.dk: 185.130.190.66 (AS210939)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
default	—	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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

113ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026070401
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 2026-10-05 01:49:17

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1998-02-20
Expires	2027-03-31 (165d)

📋 WHOIS#

⏱️ Lookup Timing#

55ms

29ms

1154ms

AAAA

1165ms

TXT

148ms

CAA

53ms

HTTPS

61ms

TLSA

743ms

SOA

0ms

MTA-STS

60ms

DNSSEC

113ms

SRV

1164ms

Total

2706ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 12:46:45	2517ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 01:22:52	2728ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 23:30:53	2126ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 04:45:50	5106ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-04 01:27:07	789ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-08 05:58:54	1561ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-05 00:24:44 shown	2706ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-01 21:33:44	916ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 14:06:13	2231ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 18:41:09	925ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 18:40:24	2579ms	2 NS 1 A 1 MX	🔒 Secure