atcom.dk

Records from scan: 2026-10-22 11:24:33 · 657ms total · last checked 2026-10-25 22:34 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

atcom.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.9.99.84 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by atcom-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 27ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.scannet2.dk	185.25.141.9 2a02:2339:4006:10d::4171:4171	ns1.scannet.dk ns1.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.scannet2.dk	2a02:2339:1:112:0:5:1:b11 91.197.248.72	ns2.scannet.dk ns2.scannet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 25ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.9.99.84	3600s	server7.designrus.dk	AS24940	Hetzner Online GmbH	5.9.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	atcom-dk.mail.protection.outlook.com	2a01:111:f403:ca04::9 2a01:111:f403:ca09::24 2a01:111:f403:ca21::10 2a01:111:f403:ca3c::a 52.101.103.143 52.101.73.153 52.101.91.156 52.101.91.162	mail-db7pr03cu00601.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-matpr05cu00100.inbound.protection.outlook.com mail-zrxpr07cu00102.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-maspr04cu00104.inbound.protection.outlook.com mail-matpr04cu00302.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

1 records 23ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a01:4f8:162:316b::2	3600s	server7.designrus.dk	AS24940	Hetzner Online GmbH	2a01:4f8:0:0:0:0:0:0/31	🇩🇪 Germany	Falkenstein

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 70ms

Service	Priority	Weight	Port	Target
_sip._tcp	100	1	443	sipfed.online.lync.com
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 79ms

TXT Record
MS=ms48029011
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.atcom.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:abuse@atcom.dk

📬 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#

checked 2026-10-22 11:24:33

www	5.9.99.84 2a01:4f8:162:316b::2 (AS24940) (address records, no CNAME)
www vs bare domain	Same network atcom.dk: 5.9.99.84 2a01:4f8:162:316b::2 (AS24940) www.atcom.dk: 5.9.99.84 2a01:4f8:162:316b::2 (AS24940)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-atcom-dk._domainkey.atcomaps.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-atcom-dk._domainkey.atcomaps.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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

99ms

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

🏷️ SOA#

28ms

Field	Value
Serial	2026090202
Primary NS (MNAME)	ns.scannet2.dk
Responsible (RNAME)	hostmaster@scannet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

27ms

25ms

29ms

AAAA

23ms

TXT

79ms

CAA

26ms

HTTPS

21ms

TLSA

190ms

SOA

28ms

MTA-STS

30ms

DNSSEC

99ms

SRV

70ms

Total

657ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 11:24:33 shown	657ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 19:35:22	661ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-19 00:50:14	926ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-04 08:40:46	1329ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-01 23:25:51	748ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 13:47:14	822ms	2 NS 1 A 1 MX	🔒 Secure