at-systems.dk DNS records

🖥️ Nameservers2 records 73ms

Nameserver	IP addresses	PTR	ASN / ISP
carol.ns.cloudflare.com	108.162.192.80 172.64.32.80 173.245.58.80 2606:4700:50::adf5:3a50 2803:f800:50::6ca2:c050 2a06:98c1:50::ac40:2050	carol.ns.cloudflare.com carol.ns.cloudflare.com carol.ns.cloudflare.com carol.ns.cloudflare.com carol.ns.cloudflare.com carol.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jerry.ns.cloudflare.com	108.162.193.182 172.64.33.182 173.245.59.182 2606:4700:58::adf5:3bb6 2803:f800:50::6ca2:c1b6 2a06:98c1:50::ac40:21b6	jerry.ns.cloudflare.com jerry.ns.cloudflare.com jerry.ns.cloudflare.com jerry.ns.cloudflare.com jerry.ns.cloudflare.com jerry.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records1 records 64ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.176	300s	linux287.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 69ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	atsystems-dk0e.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::e 2a01:111:f403:ca09::a 2a01:111:f403:ca48::c 52.101.103.137 52.101.68.29 52.101.73.1 52.101.73.2	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-as9pr07cu00302.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 97ms

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

📝 TXT Records4 records 275ms

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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.at-systems.dk	8-DJTVwiRXMgofiJY4FU8D_MrsSM_XAbSH2v5LlQyck
TXT	_acme-challenge.at-systems.dk	Fn8MugEs3-S4_Qm4b6mFrNClPJggHZlMTE3BrCVjprw

🔗 TLSA / DANE

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

🔐 DNSSEC123ms

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

🏷️ SOA0ms

Field	Value
Serial	2413019936
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 — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

73ms

A

64ms

MX

69ms

AAAA

56ms

TXT

275ms

CAA

67ms

HTTPS

80ms

TLSA

380ms

SOA

0ms

MTA-STS

107ms

DNSSEC

123ms

SRV

97ms

Total

1194ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 19:25:48	1194ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-24 16:03:50	3221ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-12 00:11:08	1810ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-20 13:09:24	674ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-16 13:47:07	831ms	2 NS 1 A 1 MX	🔓 Insecure	View