systemair.dk

Records from scan: 2026-09-30 08:21:44 · 944ms total · last checked 2026-10-18 07:46 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

systemair.dk is a .dk domain served by 4 nameservers (ns1.dnsdigip.com, ns2.dnsdigip.eu, ns3.dnsdigip.net and 1 more). It was registered on 22 December 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 13.80.135.103 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by mx1.hc837-38.c3s2.iphmx.com, mx2.hc837-38.c3s2.iphmx.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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#

4 records 52ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.dnsdigip.com	2001:8d8:fe:53:217:160:80:161 217.160.80.161	ns-ix2.ui-dns.de ns-ix2.ui-dns.de	AS8560 IONOS SE AS8560 IONOS SE
ns2.dnsdigip.eu	2001:8d8:fe:53:217:160:81:161 217.160.81.161	ns-ix2.ui-dns.biz ns-ix2.ui-dns.biz	AS8560 IONOS SE AS8560 IONOS SE
ns3.dnsdigip.net	185.132.35.161 2607:f1c0:fe:53:185:132:35:161	ns-ix2.ui-dns.org ns-ix2.ui-dns.org	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited
ns4.dnsdigip.se	185.132.34.161 2607:f1c0:fe:53:185:132:34:161	ns-ix2.ui-dns.com ns-ix2.ui-dns.com	AS15418 Fasthosts Internet Limited AS15418 Fasthosts Internet Limited

🌍 A Records#

1 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
13.80.135.103	3600s	—	AS8075	Microsoft Corporation	13.64.0.0/11	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

2 records 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.hc837-38.c3s2.iphmx.com	139.138.60.126 139.138.60.126 139.138.62.58 139.138.62.58 216.71.157.153 216.71.157.153 68.232.156.203 68.232.156.203	126.60.138.139.in-addr.arpa.c3s2.iphmx.com esa4.hc837-38.c3s2.iphmx.com 58.62.138.139.in-addr.arpa.c3s2.iphmx.com esa3.hc837-38.c3s2.iphmx.com 153.157.71.216.in-addr.arpa.c3s2.iphmx.com esa1.hc837-38.c3s2.iphmx.com 203.156.232.68.in-addr.arpa.c3s2.iphmx.com esa2.hc837-38.c3s2.iphmx.com	AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division
20	3600s	mx2.hc837-38.c3s2.iphmx.com	139.138.60.126 139.138.60.126 139.138.62.58 139.138.62.58 216.71.157.153 216.71.157.153 68.232.156.203 68.232.156.203	126.60.138.139.in-addr.arpa.c3s2.iphmx.com esa4.hc837-38.c3s2.iphmx.com 58.62.138.139.in-addr.arpa.c3s2.iphmx.com esa3.hc837-38.c3s2.iphmx.com 153.157.71.216.in-addr.arpa.c3s2.iphmx.com esa1.hc837-38.c3s2.iphmx.com 203.156.232.68.in-addr.arpa.c3s2.iphmx.com esa2.hc837-38.c3s2.iphmx.com	AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division AS30238 Cisco Systems Ironport Division

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

2 records 93ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	100	1	443	mail.systemair.se
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

4 records 269ms

TXT Record
atlassian-domain-verification=afVKvMYR0IdM0NqBLrGL7Zk9HgI46k2KFEF/aIvvongLXfKfMSvGw0K0ePsnjhvo
MS=C32EE1D1BAF23E23F19D262F5D025C2A570EDDBE
MS=ms25831314
v=spf1 include:_spf.systemair.se -all

✉️ SPF#

Policy	Record (systemair.dk)
-all (hard fail)	v=spf1 include:_spf.systemair.se -all

📨 DMARC#

Policy	Record (_dmarc.systemair.dk)
p=quarantine	v=DMARC1;p=quarantine;rua=mailto:dmarcreport@systemair.se;pct=100;ruf=mailto:dmarcreport@systemair.se;fo=0:d:s;aspf=r;adkim=r;

📬 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 2026-10-10 20:50:05

www	13.80.135.103 (AS8075) (address records, no CNAME)
www vs bare domain	Same network systemair.dk: 13.80.135.103 (AS8075) www.systemair.dk: 13.80.135.103 (AS8075)
Wildcard	No

✍️ DKIM keys#

3 found

Selector	CNAME	Key
dkim	—	RSA · ~1024 bit below 2048 bit
s1	s1.domainkey.u43322484.wl235.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u43322484.wl235.sendgrid.net	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: 9/10 · policy: -all

warn 9 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

83ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2025102104
Primary NS (MNAME)	ns1.dnsdigip.com
Responsible (RNAME)	do-not-reply@systemair.dk
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration#

WHOIS fetched 2026-10-07 09:54:07

Field	Value
Registrar	InterNetX GmbH
Registered	1998-12-22
Expires	2026-12-31 (73d)

📋 WHOIS#

⏱️ Lookup Timing#

52ms

36ms

52ms

AAAA

50ms

TXT

269ms

CAA

63ms

HTTPS

47ms

TLSA

150ms

SOA

0ms

MTA-STS

69ms

DNSSEC

83ms

SRV

93ms

Total

944ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 08:21:44 shown	944ms	4 NS 1 A 2 MX	🔓 Insecure
2026-09-27 19:45:02	902ms	4 NS 1 A 2 MX	🔓 Insecure
2026-08-13 11:54:40	2584ms	4 NS 1 A 2 MX	🔓 Insecure
2026-06-20 07:48:48	1080ms	4 NS 1 A 2 MX	🔓 Insecure
2026-06-18 00:19:29	1749ms	4 NS 1 A 2 MX	🔓 Insecure