d3system.dk

📜 Historical scan 2026-09-26 20:38:16 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

d3system.dk is a .dk domain served by 4 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com and 1 more). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.5.71.219 is hosted by AltusHost B.V. (AS51430) in The Netherlands. Mail is handled by d3system-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#

4 records 62ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
213.5.71.219	3600s	peoplepartners.dk	AS51430	AltusHost B.V.	213.5.64.0/21	🇳🇱 The Netherlands	—

📧 MX Records#

1 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	d3system-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca48::10 2a01:111:f403:ca48::a 2a01:111:f403:ca48::c 52.101.181.156 52.101.68.25 52.101.91.156 52.101.91.159	mail-db7pr03cu00601.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-wa4pr05cu00104.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-maspr04cu00104.inbound.protection.outlook.com mail-matpr04cu00207.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 → 52.98.154.152
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 73ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 144ms

TXT Record
MS=msXXXXXXXX
v=spf1 include:spf.protection.outlook.com ip4:87.53.75.238 -all

✉️ SPF#

Policy	Record (d3system.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:87.53.75.238 -all

📨 DMARC#

Policy	Record (_dmarc.d3system.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 2026-10-13 20:16:07

www	213.5.71.219 (AS51430) (address records, no CNAME)
www vs bare domain	Same network d3system.dk: 213.5.71.219 (AS51430) www.d3system.dk: 213.5.71.219 (AS51430)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 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#

111ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2025042300
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

62ms

36ms

35ms

AAAA

64ms

TXT

144ms

CAA

52ms

HTTPS

29ms

TLSA

305ms

SOA

0ms

MTA-STS

81ms

DNSSEC

111ms

SRV

73ms

Total

884ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 21:31:57	2287ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-26 20:38:16 shown	884ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-13 16:14:26	2940ms	4 NS 1 A 1 MX	🔒 Secure
2026-09-02 03:51:05	969ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-28 22:10:22	1510ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-24 13:22:27	1174ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 14:02:18	11317ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 23:34:08	2233ms	4 NS 1 A 1 MX	🔒 Secure
2026-06-16 23:30:45	909ms	4 NS 1 A 1 MX	🔒 Secure