checkversion.org - dns.ninja
checkversion.org
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.werk21system.de ⭐ | ||||||
| A | 149.233.9.125🇩🇪 ESHELTER149.233.0.0/19 E-shelter | ||||||
| PTR | s112-125.werk21system.de | ||||||
| NS | ns.werk21system.de | ||||||
| A | 149.233.9.47🇩🇪 ESHELTER149.233.0.0/19 E-shelter | ||||||
| PTR | mailout.foodwatch.de | ||||||
| NS | ns2.werk21system.de | ||||||
| A | 49.13.240.49🇩🇪 Hetzner49.13.0.0/16 HETZNER-DC | ||||||
| PTR | gw-fsn.werk21system.de | ||||||
| NS | ns3.werk21system.de | ||||||
| A | 91.216.245.193🇩🇪 IP-PROJECTS91.216.245.0/24 IP-Routing by www.ip-projects.de | ||||||
| PTR | s512-002.werk21system.de | ||||||
| MX | mx3.werk21system.de ⭐ | ||||||
| A | 91.216.245.166🇩🇪 IP-PROJECTS91.216.245.0/24 IP-Routing by www.ip-projects.de | ||||||
| PTR | mx3.werk21system.de | ||||||
| MX | mx4.werk21system.de(20) | ||||||
| A | 78.46.128.86🇩🇪 Hetzner78.46.0.0/15 HETZNER-RZ-NBG-BLK5 | ||||||
| PTR | mx4.werk21system.de | ||||||
| TXT | v=spf1 mx a include:spf1.werk21system.de ~all | ||||||
| SOA | ns.werk21system.dehostmaster@werk21.de 2026-05-08 #1 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1786355472 | ||||||
Same first word
checkversion.de |
checkversion.org |
checkversion.com |
Similar names
DNS History
6 records (6 active, 0 former)
●NSns.werk21system.de2015-06-06 → 2026-08-10 · 2 obs
● 2026-08-10 10:20:10
●NSns1.werk21system.de2026-06-08 → 2026-08-10 · 3 obs
● 2026-06-08 10:36:46
● 2026-08-10 10:20:10
●NSns2.werk21system.de2015-06-06 → 2026-08-10 · 2 obs
● 2026-08-10 10:20:10
●NSns3.werk21system.de2015-06-06 → 2026-08-10 · 2 obs
● 2026-08-10 10:20:10
●MXmx3.werk21system.de2015-06-06 → 2026-08-10 · 2 obs
● 2026-08-10 10:20:10
●MXmx4.werk21system.de2015-06-06 → 2026-08-10 · 2 obs
● 2026-08-10 10:20:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| checkversion.org | ns3.werk21system.de, ns1.werk21system.de, ns2.werk21system.de | - |
✅ Authoritative Response
Server:91.216.245.193
NS records: ns3.werk21system.de, ns1.werk21system.de, ns2.werk21system.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for checkversion.org (unsigned zone)
⏱️ Timing
Total: 818ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns2.werk21system.de, ns1.werk21system.de... |
| MX | 2 | mx3.werk21system.de (pri: 10), mx4.werk21system.de (pri: 20) |
| TXT | 1 | v=spf1 mx a include:spf1.werk21system.de |
| SOA | 1 | ns.werk21system.de hostmaster.werk21.de |
Analysis
Name Servers
checkversion.org has four authoritative name servers: ns1.werk21system.de, ns2.werk21system.de, ns3.werk21system.de and ns.werk21system.de.
At least some of checkversion.org's name servers are shared with other domains, for example tic-in-prenzlauerberg.de, schulmedia.de, museum-folkwang.de and two more.
ns1.werk21system.de, ns2.werk21system.de, ns3.werk21system.de and ns.werk21system.de each resolve to one IP address: ns1.werk21system.de resolves to 149.233.9.125, ns2.werk21system.de resolves to 49.13.240.49, ns3.werk21system.de resolves to 91.216.245.193 and ns.werk21system.de resolves to 149.233.9.47.
Mail Servers
checkversion.org has two mail servers: mx3.werk21system.de and mx4.werk21system.de.
checkversion.org shares the same mail server setup as other domains, including berlin-doener.de, verrycken.de, berlindoener.de and two others.
checkversion.org shares mail servers — at least in part — with other domains, including ganztaegig-lernen.org, checkversion.de, naturfreunde-frankfurt.de and two others.
Each of mx3.werk21system.de and mx4.werk21system.de has one IP address: mx3.werk21system.de uses 91.216.245.166 and mx4.werk21system.de uses 78.46.128.86.