4sys.de - dns.ninja
4sys.de
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=1780941191 | ||||||
Same first word
Similar names
4ssy.net |
s4ys.de |
sys4.ru |
yss4.com |
sys4.email |
sys4.net |
sys4.com |
4ssy.com |
sys4.eu |
sys4.de |
sys4.farm |
s4ys.com |
ssy4.com |
sys4.fr |
sys4.org |
ss4y.com |
sys4.ch |
sy4s.com |
sys4.cn |
4yss.com |
DNS History
12 records (7 active, 5 former)
○NSns10.schlund.de2015-08-11 → 2016-09-11 · 4 obs
● 2016-09-11 02:57:28
○ 2026-02-27 16:15:12
○ 2026-06-08 18:00:00
●NSns1051.ui-dns.biz2026-02-27 → 2026-06-08 · 3 obs
● 2026-02-27 16:15:12
● 2026-06-08 18:00:00
●NSns1051.ui-dns.com2026-02-27 → 2026-06-08 · 3 obs
● 2026-02-27 16:15:12
● 2026-06-08 18:00:00
●NSns1051.ui-dns.de2026-02-27 → 2026-06-08 · 3 obs
● 2026-02-27 16:15:12
● 2026-06-08 18:00:00
●NSns1051.ui-dns.org2026-02-27 → 2026-06-08 · 3 obs
● 2026-02-27 16:15:12
● 2026-06-08 18:00:00
○NSns9.schlund.de2015-08-11 → 2016-09-11 · 4 obs
● 2016-09-11 02:57:28
○ 2026-02-27 16:15:12
○ 2026-06-08 18:00:00
●MXmx00.ionos.de2026-02-27 → 2026-06-08 · 3 obs
● 2026-02-27 16:15:12
● 2026-06-08 18:00:00
○MXmx00.schlund.de2015-08-11 → 2016-09-11 · 4 obs
● 2016-09-11 02:57:28
○ 2026-02-27 16:15:12
○ 2026-06-08 18:00:00
●MXmx01.ionos.de2026-02-27 → 2026-06-08 · 3 obs
● 2026-02-27 16:15:12
● 2026-06-08 18:00:00
○MXmx01.schlund.de2015-08-11 → 2016-09-11 · 4 obs
● 2016-09-11 02:57:28
○ 2026-02-27 16:15:12
○ 2026-06-08 18:00:00
●A217.160.231.1432016-09-11 → 2026-06-08 · 3 obs
● 2016-09-11 02:57:28
● 2026-06-08 18:00:00
○A82.165.91.1982015-08-11 → 2016-03-21 · 4 obs
● 2016-03-21 17:37:22
○ 2016-09-11 02:57:28
○ 2026-06-08 18:00:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| 4sys.de | ns1051.ui-dns.de, ns1051.ui-dns.org, ns1051.ui-dns.com, ns1051.ui-dns.biz | - |
✅ Authoritative Response
Server:217.160.83.51
NS records: ns1051.ui-dns.de, ns1051.ui-dns.org, ns1051.ui-dns.com, ns1051.ui-dns.biz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4sys.de (unsigned zone)
⏱️ Timing
Total: 962ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.160.231.143 |
| NS | 4 | ns1051.ui-dns.com, ns1051.ui-dns.de... |
| MX | 2 | mx00.ionos.de (pri: 10), mx01.ionos.de (pri: 10) |
| TXT | 1 | v=spf1 include:_spf-eu.ionos.com ~all |
| SOA | 1 | ns1051.ui-dns.de hostmaster.schlund.de |
Analysis
IP Addresses
4sys.de resolves to just one IP address, 217.160.231.143.
Two other host names, along with xsus.de, 4blue.net and x-asp.net, also share IP numbers with 4sys.de.
Name Servers
The DNS delegation for 4sys.de covers 4 name servers — ns1051.ui-dns.biz, ns1051.ui-dns.com, ns1051.ui-dns.de and ns1051.ui-dns.org.
The name servers of 4sys.de overlap at least partially with those of other domains — among them lighthousebcc.org, honestu.com, vivireco.com and two more.
Each of the four hosts ns1051.ui-dns.biz, ns1051.ui-dns.com, ns1051.ui-dns.de and ns1051.ui-dns.org has two IP addresses. ns1051.ui-dns.biz points to 217.160.81.51 and 2001:8d8:fe:53:0:d9a0:5133:100. ns1051.ui-dns.com points to 217.160.82.51 and 2001:8d8:fe:53:0:d9a0:5233:100. ns1051.ui-dns.de points to 217.160.80.51 and 2001:8d8:fe:53:0:d9a0:5033:100. ns1051.ui-dns.org points to 217.160.83.51 and 2001:8d8:fe:53:0:d9a0:5333:100.
Mail Servers
4sys.de is served by two mail servers, mx00.ionos.de and mx01.ionos.de.
Among the domains sharing a mail server setup with 4sys.de are gewog.de, di-r.de, thomas-ibs.de and two others.
Both mx00.ionos.de and mx01.ionos.de have a single IP address each — mx00.ionos.de resolves to 212.227.15.41 while mx01.ionos.de resolves to 217.72.192.67.