ohsys.de - dns.ninja
ohsys.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 116.203.6.1🇩🇪 Hetzner116.203.0.0/16 HETZNER-DC | ||||||
| PTR | mail.hartwich.berlin | ||||||
| NS | ns1.zwopunkt0.de ⭐ | ||||||
| A | 159.69.101.1🇩🇪 Hetzner159.69.0.0/16 HETZNER-DC | ||||||
| PTR | ns1.zwopunkt0.de | ||||||
| NS | ns2.zwopunkt0.de | ||||||
| A | 159.69.101.2🇩🇪 Hetzner159.69.0.0/16 HETZNER-DC | ||||||
| PTR | ns2.zwopunkt0.de | ||||||
| MX | ohsys.de ⭐ | ||||||
| A | 116.203.6.1🇩🇪 Hetzner116.203.0.0/16 HETZNER-DC | ||||||
| PTR | mail.hartwich.berlin | ||||||
| TXT | v=spf1 +a +mx +a:enterprise.zwopunkt0.de +ip4:116.203.6.1 +ip4:195.201.89.239... | ||||||
| SOA | ns1.zwopunkt0.deoliver\@hartwich.ohsys.de 2021-10-20 #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=1782077214 | ||||||
MX for
ohsys.de |
Subdomains
mail.ohsys.de |
Same first word
Similar names
hossy.com |
hosys.com |
yshos.com |
syhos.cn |
shyso.cn |
shsoy.fi |
hysos.com |
hossy.jp |
hosys.co.uk |
sysho.com |
soshy.de |
soshy.net |
hysos.cn |
syhos.net |
yhoss.com |
osshy.com |
hysso.com |
soshy.com |
hossy.me |
hysos.net |
hosys.com.cn |
syhos.com |
DNS History
7 records (4 active, 3 former)
●NSns1.zwopunkt0.de2015-06-22 → 2026-06-21 · 5 obs
● 2016-01-18 16:41:46
○ 2016-04-10 18:09:16
● 2017-10-05 10:13:56
● 2026-06-21 21:29:00
●NSns2.zwopunkt0.de2015-06-22 → 2026-06-21 · 2 obs
● 2026-06-21 21:29:00
○MXmail.ohsys.de2015-06-22 → 2017-10-05 · 4 obs
● 2017-10-05 10:13:56
○ 2026-03-24 17:28:00
○ 2026-06-21 21:29:00
●MXohsys.de2026-03-24 → 2026-06-21 · 3 obs
● 2026-03-24 17:28:00
● 2026-06-21 21:29:00
●A116.203.6.12026-03-24 → 2026-06-21 · 3 obs
● 2026-03-24 17:28:00
● 2026-06-21 21:29:00
○A5.9.12.402015-06-22 → 2016-12-04 · 4 obs
● 2016-12-04 22:30:14
○ 2017-10-05 10:13:56
○ 2026-06-21 21:29:00
○A5.9.219.1002017-10-05 → 2017-10-05 · 4 obs
● 2017-10-05 10:13:56
○ 2026-03-24 17:28:00
○ 2026-06-21 21:29:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| ohsys.de | ns1.zwopunkt0.de, ns2.zwopunkt0.de | 2 records |
✅ Authoritative Response
Server:159.69.101.1
NS records: ns1.zwopunkt0.de, ns2.zwopunkt0.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ohsys.de (unsigned zone)
⏱️ Timing
Total: 1427ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 116.203.6.1 |
| NS | 2 | ns2.zwopunkt0.de, ns1.zwopunkt0.de |
| MX | 1 | ohsys.de (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +a:enterprise.zwopunkt0.de |
| SOA | 1 | ns1.zwopunkt0.de oliver\.hartwich.ohsys. |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.zwopunkt0.de, ns1.zwopunkt0.de)
Analysis
Hierarchy
ohsys.de serves as the parent of mail.ohsys.de.
Mail Server Role
ohsys.de acts as its own mail server.
IP Addresses
ohsys.de points to a single IP number: 116.203.6.1.
Additional host names — mercedes-seite.de, hartwi.ch, mail.mercedes-seite.de and two others — share IP numbers with ohsys.de.
Name Servers
ohsys.de is served by two delegated name servers, ns1.zwopunkt0.de and ns2.zwopunkt0.de.
ohsys.de shares its name server setup with other domains, including pensionskasse-bhw.de, ollihart.de, lifestylespot.de and two others.
ns1.zwopunkt0.de directs to 159.69.101.1 and ns2.zwopunkt0.de directs to 159.69.101.2; each host name points to exactly one IP number.
Mail Servers
ohsys.de has a single mail server: ohsys.de itself.
There is one IP number for ohsys.de: 116.203.6.1.