sysfn-web00.de - robtex.com
sysfn-web00.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 162.55.227.254🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC | ||||||
| PTR | sysfn-web00.de | ||||||
| NS | robotns2.second-ns.de ⭐ | ||||||
| A | 2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | robotns2.second-ns.de | ||||||
| A | 213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | robotns2.second-ns.de | ||||||
| NS | ns1.first-ns.de | ||||||
| A | 2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.first-ns.de | ||||||
| A | 213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns1.first-ns.de | ||||||
| NS | robotns3.second-ns.com | ||||||
| A | 2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| A | 193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| MX | mail.sysfn-web00.de ⭐ | ||||||
| A | 162.55.227.254🇩🇪 Hetzner162.55.0.0/16 HETZNER-DC | ||||||
| PTR | sysfn-web00.de | ||||||
| TXT | v=spf1 +a +mx +a:sysfn-web00.de -all | ||||||
| SOA | robotns2.second-ns.desupport@sys-fn.de 2026-02-11 #2 | ||||||
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=1774384237 | ||||||
PTR for
Subdomains
mail.sysfn-web00.de |
Same first word
sysfn-web00.de |
DNS History
5 records (5 active, 0 former)
●NSns1.first-ns.de2026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 20:33:24
●NSrobotns2.second-ns.de2026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 20:33:24
●NSrobotns3.second-ns.com2026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 20:33:24
●MXmail.sysfn-web00.de2026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 20:33:24
●A162.55.227.2542026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 20:33:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | z.nic.de, a.nic.de, f.nic.de | - |
| sysfn-web00.de | ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com | - |
✅ Authoritative Response
Server:193.47.99.3
NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sysfn-web00.de (unsigned zone)
⏱️ Timing
Total: 1572ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.55.227.254 |
| NS | 3 | robotns2.second-ns.de, robotns3.second-ns.com... |
| MX | 1 | mail.sysfn-web00.de (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +a:sysfn-web00.de -all |
| SOA | 1 | robotns2.second-ns.de support.sys-fn.de |
Analysis
Hierarchy
sysfn-web00.de is the parent of mail.sysfn-web00.de.
IP Addresses
sysfn-web00.de points to a single IP number: 162.55.227.254.
other host names for instance systemhaus-fn.de, hieberschule-uhingen.de, mail.it4.school, it4.school and gsravensburg.de share IP numbers with sysfn-web00.de.
Name Servers
sysfn-web00.de is delegated to three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
sysfn-web00.de at least partially shares name servers with other domains, for instance fennex.de, shadow-negotiator.com, lextod.com, ultimaratioregis.de and regensburg-mittelalter.eu.
These name servers are commonly used with hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
Host names with two IP numbers:
Host robotns3.second-ns.com points to 2001:67c:192c::add:a3 and 193.47.99.3.
Host ns1.first-ns.de points to 2a01:4f8:0:a101::a:1 and 213.239.242.238.
Host robotns2.second-ns.de points to 2a01:4f8:0:1::5ddc:2 and 213.133.100.103.
Mail Servers
sysfn-web00.de is handled by a single mail server, mail.sysfn-web00.de.
Host name mail.sysfn-web00.de points to IP address 162.55.227.254.