`sd-systems.at`

DNSSEC	⚠️ Not signed
A	2a01:7e01::f03c:94ff:fe31:d518^{🇩🇪 AKAMAI-LINODE-AP2a01:7e01::/32 Akamai Technologies}
A	172.104.145.148^{🇩🇪 AKAMAI-LINODE-AP172.104.128.0/19 Akamai Technologies}
NS	`ns1.linode.com` ⭐
		A	2600:14c0:6::2^{🇺🇸 Akamai2600:14c0:6::/48 Technologies}
			PTR	`c1-2.akashield.net`
		A	92.123.94.2^{🇳🇱 Akamai92.123.94.0/24 Technologies}
			PTR	`c1-2.akashield.net`
NS	`ns2.linode.com`
		A	2600:14c0:6::3^{🇺🇸 Akamai2600:14c0:6::/48 Technologies}
			PTR	`c1-3.akashield.net`
		A	92.123.94.3^{🇳🇱 Akamai92.123.94.0/24 Technologies}
			PTR	`c1-3.akashield.net`
NS	`ns3.linode.com`
		A	2600:14c0:7::3^{🇺🇸 Akamai2600:14c0:7::/48 Technologies}
			PTR	`c2-3.akashield.net`
		A	92.123.95.3^{🇳🇱 Akamai92.123.95.0/24 Technologies}
			PTR	`c2-3.akashield.net`
NS	`ns4.linode.com`
		A	2600:14c0:7::4^{🇺🇸 Akamai2600:14c0:7::/48 Technologies}
			PTR	`c2-4.akashield.net`
		A	92.123.95.4^{🇳🇱 Akamai92.123.95.0/24 Technologies}
			PTR	`c2-4.akashield.net`
NS	`ns5.linode.com` ⚠️ Not in parent delegation
		A	2600:14c0:7::2^{🇺🇸 Akamai2600:14c0:7::/48 Technologies}
			PTR	`c2-2.akashield.net`
		A	92.123.95.2^{🇳🇱 Akamai92.123.95.0/24 Technologies}
			PTR	`c2-2.akashield.net`
MX	`mx1.hostinger.com` ⭐
		A	2606:4700:90:0:c1f8:f874:2386:b61f^{🇺🇸 Cloudflare2606:4700:90::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.65.182.103^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
MX	`mx2.hostinger.com`⁽¹⁰⁾
		A	2606:4700:90:0:c1f8:f874:2386:b61f^{🇺🇸 Cloudflare2606:4700:90::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.65.182.103^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
TXT	`v=spf1 include:_spf.mail.hostinger.com ~all`
SOA	`ns1.linode.com`ds\@stocker.outlook.com serial=2021000036

`at`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns.nic.at` ⭐
	NS	`d.ns.at`
	NS	`j.ns.at`
	NS	`n.ns.at`
	NS	`ns1.univie.ac.at`
	NS	`ns2.univie.ac.at`
	NS	`r.ns.at`
	NS	`u.ns.at`
	SOA	`dns.nic.at`domain-admin@univie.ac.at serial=1778922002

Subdomains

mail.sd-systems.at

Same first word

sd-systems.at

sd-systems.de

Similar names

sds-system.com

ds-systems.eu

ds-systems.net

ds-systems.ru

dss-system.com

DNS History

9 records (9 active, 0 former)

●NSns1.linode.com2026-05-12 → 2026-05-16 · 2 obs

● 2026-05-12 09:00:30
● 2026-05-16 09:26:42

●NSns2.linode.com2026-05-12 → 2026-05-16 · 2 obs

● 2026-05-12 09:00:30
● 2026-05-16 09:26:42

●NSns3.linode.com2026-05-12 → 2026-05-16 · 2 obs

● 2026-05-12 09:00:30
● 2026-05-16 09:26:42

●NSns4.linode.com2026-05-12 → 2026-05-16 · 2 obs

● 2026-05-12 09:00:30
● 2026-05-16 09:26:42

●NSns5.linode.com2026-05-12 → 2026-05-16 · 2 obs

● 2026-05-12 09:00:30
● 2026-05-16 09:26:42

●MXmx1.hostinger.com2026-05-12 → 2026-05-16 · 2 obs

● 2026-05-12 09:00:30
● 2026-05-16 09:26:42

●MXmx2.hostinger.com2026-05-12 → 2026-05-16 · 2 obs

● 2026-05-12 09:00:30
● 2026-05-16 09:26:42

●A172.104.145.1482026-05-12 → 2026-05-16 · 2 obs

● 2026-05-12 09:00:30
● 2026-05-16 09:26:42

●A2a01:7e01::f03c:94ff:fe31:d5182026-05-12 → 2026-05-16 · 2 obs

● 2026-05-12 09:00:30
● 2026-05-16 09:26:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
at	d.ns.at, j.ns.at, n.ns.at, r.ns.at...	-
sd-systems.at	ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com	-

✅ Authoritative Response

Server:92.123.95.4

NS records: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sd-systems.at (unsigned zone)

⏱️ Timing

Total: 1235ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`172.104.145.148`
AAAA	1	`2a01:7e01::f03c:94ff:fe31:d518`
NS	5	`ns3.linode.com, ns1.linode.com...`
MX	2	`mx2.hostinger.com (pri: 10), mx1.hostinger.com (pri: 5)`
TXT	1	`v=spf1 include:_spf.mail.hostinger.com ~`
SOA	1	`ns1.linode.com ds\.stocker.outlook.com`

Analysis

Hierarchy

The parent of mail.sd-systems.at is sd-systems.at.

IP Addresses

sd-systems.at points to two IP numbers: 2a01:7e01::f03c:94ff:fe31:d518 and 172.104.145.148.

Other host names, such as block.mmms.eu and mail.sd-systems.at, share IP numbers with sd-systems.at.

Name Servers

sd-systems.at is delegated to five name servers: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com and ns5.linode.com.

sd-systems.at at least partially shares name servers with other domains, for example conf.me.uk, atria-labs.com, beatwars.com, reliance.com.tw and epicsol.org.