sysdef.de - dns.ninja
sysdef.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 34.240.80.250🇮🇪 Amazon34.240.0.0/13 EC2 DUB prefix | ||||||
| PTR | ec2-34-240-80-250.eu-west-1.compute.amazonaws.com | ||||||
| NS | ns1.s-dns.de ⭐ | ||||||
| A | 192.174.68.13🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net | ||||||
| PTR | pns01.kyberio-dns.com | ||||||
| NS | ns2.s-dns.de | ||||||
| A | 176.97.158.13🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net | ||||||
| PTR | pns02.kyberio-dns.de | ||||||
| MX | mail-01.do-it-smart.com ⭐ | ||||||
| A | 91.213.21.120🇩🇪 UUU-TELECOM-AS91.213.21.0/24 HOSTHOUSING-NET via 3U | ||||||
| TXT | v=spf1 a:mail-01.do-it-smart.com ~all | ||||||
| SOA | ns1.s-dns.dehostmaster@s-dns.de 2026-06-25 #1 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1782744979 | ||||||
Subdomains
mail.sysdef.de |
Same first word
Similar names
defsys.co.nz |
defsys.co.in |
defsys.com |
defsys.services |
efssyd.org |
defsys.digital |
sfdyes.com |
defsys.com.au |
defsys.email |
efssyd.com |
fedsys.com |
defsys.eu |
defsys.ca |
defsys.net |
DNS History
8 records (4 active, 4 former)
○MXdebcenter.org2020-03-03 → 2020-03-03 · 4 obs
● 2020-03-03 15:42:18
○ 2026-06-29 06:19:46
○ 2026-06-29 15:02:48
○MXdebiancenter.org2015-12-21 → 2017-03-24 · 5 obs
● 2015-12-21 22:49:42
● 2017-03-24 22:27:14
○ 2020-03-03 15:42:18
○ 2026-06-29 15:02:48
●MXmail-01.do-it-smart.com2026-06-29 → 2026-06-29 · 3 obs
● 2026-06-29 06:19:46
● 2026-06-29 15:02:48
○MXmail.sysdef.de2015-07-23 → 2015-07-23 · 3 obs
○ 2015-12-21 22:49:42
○ 2026-06-29 15:02:48
●A34.240.80.2502020-03-03 → 2026-06-29 · 3 obs
● 2020-03-03 15:42:18
● 2026-06-29 15:02:48
○A83.125.107.1482015-07-23 → 2017-03-24 · 4 obs
● 2017-03-24 22:27:14
○ 2020-03-03 15:42:18
○ 2026-06-29 15:02:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | f.nic.de, z.nic.de, a.nic.de | - |
| sysdef.de | ns2.s-dns.de, ns1.s-dns.de | - |
✅ Authoritative Response
Server:192.174.68.13
NS records: ns2.s-dns.de, ns1.s-dns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysdef.de (unsigned zone)
⏱️ Timing
Total: 602ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 34.240.80.250 |
| NS | 2 | ns2.s-dns.de, ns1.s-dns.de |
| MX | 1 | mail-01.do-it-smart.com (pri: 10) |
| TXT | 1 | v=spf1 a:mail-01.do-it-smart.com ~all |
| SOA | 1 | ns1.s-dns.de hostmaster.s-dns.de |
Analysis
Hierarchy
mail.sysdef.de is a subdomain of sysdef.de.
IP Addresses
sysdef.de directs to one IP number, which is 34.240.80.250.
mail.sysdef.de is an example of another host name that shares IP numbers with sysdef.de.
Name Servers
sysdef.de has two authoritative name servers — ns1.s-dns.de and ns2.s-dns.de.
sysdef.de has the same name server delegation as a number of other domains, such as innosuite.de, xsul.eu, bad-portal.de and two more.
The name servers of sysdef.de overlap at least partially with those of other domains — among them bechler-partner.de, generationlove.com, sevahd.net and two more.
The name servers pns01.dcsix.net, pns02.dcsix.net and ns3.s-dns.de are commonly seen alongside these name servers.
Both ns1.s-dns.de and ns2.s-dns.de have a single IP address each — ns1.s-dns.de resolves to 192.174.68.13 while ns2.s-dns.de resolves to 176.97.158.13.
Mail Servers
sysdef.de routes its mail through a single mail server, mail-01.do-it-smart.com.
sysdef.de has the same mail server arrangement as a number of other domains, for example j2l.de, debcenter.org, sysdef.fr and two more.
mail-01.do-it-smart.com points to one IP number — 91.213.21.120.