at-systems.dk

📜 Historical scan 2026-06-16 13:47:07 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

at-systems.dk is a .dk domain served by 2 nameservers (carol.ns.cloudflare.com, jerry.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.156.176 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by atsystems-dk0e.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 63ms

Nameserver	IP addresses	PTR	ASN / ISP
carol.ns.cloudflare.com	—	—	—
jerry.ns.cloudflare.com	—	—	—

🌍 A Records#

1 records 56ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.176	—	linux287.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records#

1 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	atsystems-dk0e.mail.protection.outlook.com	52.101.68.12 52.101.73.22 52.101.73.30 52.101.73.4	mail-db9pr02cu00204.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am0pr83cu00404.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 211ms

TXT Record
google-site-verification=vj_hIcBW7nzVvVte7icVrJdoL1aqe6CZvyEBzHWOBsQ
MS=ms46881877
v=DMARC1; p=none; rua=mailto:jht@at-systems.dk
v=spf1 include:_spf.google.com include:spf.protection.outlook.com ~all

✉️ SPF#

Policy	Record (at-systems.dk)
~all (soft fail)	v=spf1 include:_spf.google.com include:spf.protection.outlook.com ~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 2026-10-10 03:36:24

www CNAME	at-systems.dk (all on at-systems.dk) → 93.191.156.176 (AS48854)
www vs bare domain	Same network at-systems.dk: 93.191.156.176 (AS48854) www.at-systems.dk: 93.191.156.176 (AS48854)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u17802340.wl091.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u17802340.wl091.sendgrid.net	RSA · ~1024 bit below 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#

184ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

69ms

Field	Value
Serial	2406834465
Primary NS (MNAME)	carol.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

63ms

56ms

50ms

AAAA

51ms

TXT

211ms

CAA

61ms

HTTPS

57ms

TLSA

214ms

SOA

69ms

MTA-STS

43ms

DNSSEC

184ms

SRV

0ms

Total

831ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 03:36:23	5636ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-03 03:04:10	6401ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-29 15:43:07	1516ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-27 22:45:38	780ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-26 22:19:10	870ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-25 22:12:44	1843ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-22 04:23:29	1320ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-16 17:10:17	1370ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-08 05:44:09	899ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-06 13:31:21	1433ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 19:25:48	1194ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-24 16:03:50	3221ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-12 00:11:08	1810ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-20 13:09:24	674ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 13:47:07 shown	831ms	2 NS 1 A 1 MX	🔓 Insecure