csdc.dk

📜 Historical scan 2026-07-06 21:55:18 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

csdc.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 12 April 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.33 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by csdc-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 42ms

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 80ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.33	3600s	webcluster2.webpod12-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 81ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	csdc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca09::3 2a01:111:f403:ca09::9 2a01:111:f403:ca09::f 52.101.68.15 52.101.73.11 52.101.73.16 52.101.73.28	mail-db4pr02cu00406.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00204.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 → 40.98.16.71

🔷 AAAA Records (IPv6)#

1 records 62ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10a:8008:76f:3d3:c799	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 103ms

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

📝 TXT Records#

3 records 320ms

TXT Record
google-site-verification=XIp8bEmWanODXlZEI0qR8F_PtomW9x71o8v8u_RU6JA
MS=ms96653947
v=spf1 include:spf.protection.outlook.com a:gate1.sikkermail.nu a:gate2.sikkermail.nu include:mail.zendesk.com v=spf1 include:servers.mcsv.net ?all

✉️ SPF#

Policy	Record (csdc.dk)
?all (neutral)	v=spf1 include:spf.protection.outlook.com a:gate1.sikkermail.nu a:gate2.sikkermail.nu include:mail.zendesk.com v=spf1 include:servers.mcsv.net ?all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-09 18:58:20

www	46.30.213.33 2a02:2350:5:10a:8008:76f:3d3:c799 (AS51468) (address records, no CNAME)
www vs bare domain	Same network csdc.dk: 46.30.213.33 2a02:2350:5:10a:8008:76f:3d3:c799 (AS51468) www.csdc.dk: 46.30.213.33 2a02:2350:5:10a:8008:76f:3d3:c799 (AS51468)
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: 5/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

172ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026070501
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 2026-09-06 02:27:08

Field	Value
Registrar	ONE.COM A/S
Registered	2018-04-12
Expires	2027-04-30 (194d)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

80ms

81ms

AAAA

62ms

TXT

320ms

CAA

65ms

HTTPS

73ms

TLSA

232ms

SOA

0ms

MTA-STS

162ms

DNSSEC

172ms

SRV

103ms

Total

1670ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 14:41:15	3286ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-12 05:38:19	1647ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-10 10:23:12	1353ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-06 02:25:11	1251ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 15:59:44	1318ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 00:47:56	1259ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-07 20:00:39	975ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-17 07:18:36	9065ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-13 10:18:39	1617ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-06 21:55:18 shown	1670ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-01 18:40:05	1659ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 20:16:45	1083ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 21:56:12	984ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 23:06:17	3557ms	2 NS 1 A 1 MX	🔒 Secure