ddsa.dk

📜 Historical scan 2026-08-18 05:45:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ddsa.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 6 April 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 130.225.68.7 is hosted by IDDQD-AS (AS1835) in Denmark. Mail is handled by ddsa-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 44ms

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 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
130.225.68.7	3600s	www4.compute.dtu.dk	AS1835	IDDQD-AS	130.225.0.0/16	🇩🇰 Denmark	—

📧 MX Records#

1 records 82ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	ddsa-dk.mail.protection.outlook.com	2a01:111:f403:ca04::b 2a01:111:f403:ca04::e 2a01:111:f403:ca09::2 2a01:111:f403:ca09::d 52.101.68.0 52.101.68.25 52.101.68.8 52.101.73.24	mail-dbbpr03cu00103.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as8pr05cu00300.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 → 40.104.116.24
🔶 Autoconfig	77.111.240.167

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 288ms

TXT Record
MS=ms68542800
v=spf1 include:spf.dtu.dk include:servers.mcsv.net -all

✉️ SPF#

Policy	Record (ddsa.dk)
-all (hard fail)	v=spf1 include:spf.dtu.dk 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 2026-10-16 22:59:41

www	130.225.68.7 (AS1835) (address records, no CNAME)
www vs bare domain	Same network ddsa.dk: 130.225.68.7 (AS1835) www.ddsa.dk: 130.225.68.7 (AS1835)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-ddsa-dk._domainkey.dtudk.onmicrosoft.com	RSA · ~2048 bit
selector2	selector2-ddsa-dk._domainkey.dtudk.onmicrosoft.com	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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

157ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026081705
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 2026-10-11 06:41:08

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-04-06
Expires	2027-04-30 (194d)

📋 WHOIS#

⏱️ Lookup Timing#

44ms

46ms

82ms

AAAA

59ms

TXT

288ms

CAA

68ms

HTTPS

74ms

TLSA

328ms

SOA

0ms

MTA-STS

122ms

DNSSEC

157ms

SRV

139ms

Total

1904ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 22:59:41	1247ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-11 06:05:18	1042ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-05 21:57:00	2208ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 21:52:19	796ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 10:50:49	912ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 16:23:24	1394ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-31 22:04:13	940ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-18 05:45:03 shown	1904ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-14 21:23:46	5781ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 21:02:15	1221ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 01:29:36	810ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 01:20:34	1367ms	2 NS 1 A 1 MX	🔒 Secure