opencfd.com - robtex.com
opencfd.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 20.50.153.39🇳🇱 Microsoft20.48.0.0/12 | ||||||
| NS | x.ns.joker.com ⭐ | ||||||
| A | 194.245.103.13🇩🇪 CSL194.245.0.0/16 DE-CSL-GMBH-PA | ||||||
| PTR | x.ns.joker.com | ||||||
| NS | y.ns.joker.com | ||||||
| A | 2a01:4f8:c0c:165b::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | y.ns.joker.com | ||||||
| A | 23.88.49.189🇩🇪 Hetzner23.88.0.0/17 HETZNER-DC | ||||||
| PTR | static.189.49.88.23.clients.your-server.de | ||||||
| NS | z.ns.joker.com | ||||||
| A | 2607:5300:203:7e6d::2222🇨🇦 OVH2607:5300::/32 Hosting route | ||||||
| PTR | z.ns.joker.com | ||||||
| A | 192.95.37.184🇨🇦 OVH192.95.0.0/18 Hosting route | ||||||
| PTR | z.ns.joker.com | ||||||
| TXT | 60q0m8j4p603ct3rt3qfz98ftb95djf9 | ||||||
| SOA | x.ns.joker.comhostmaster@joker.com 2022-01-26 #64 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1771291435 | ||||||
Same first word
opencfd.com |
Similar names
DNS History
10 records (4 active, 6 former)
○NSa.ns.joker.com2015-08-04 → 2017-08-21 · 4 obs
● 2017-08-21 19:26:26
○ 2026-03-02 08:55:30
○ 2026-03-02 08:55:32
○NSb.ns.joker.com2015-08-04 → 2017-08-21 · 4 obs
● 2017-08-21 19:26:26
○ 2026-03-02 08:55:30
○ 2026-03-02 08:55:32
○NSc.ns.joker.com2015-08-04 → 2017-08-21 · 4 obs
● 2017-08-21 19:26:26
○ 2026-03-02 08:55:30
○ 2026-03-02 08:55:32
●NSx.ns.joker.com2026-03-02 → 2026-03-02 · 3 obs
● 2026-03-02 08:55:30
● 2026-03-02 08:55:32
●NSy.ns.joker.com2026-03-02 → 2026-03-02 · 3 obs
● 2026-03-02 08:55:30
● 2026-03-02 08:55:32
●NSz.ns.joker.com2026-03-02 → 2026-03-02 · 3 obs
● 2026-03-02 08:55:30
● 2026-03-02 08:55:32
○A137.117.136.392015-08-04 → 2016-07-14 · 4 obs
● 2016-07-14 04:24:58
○ 2017-08-21 19:26:26
○ 2026-03-02 08:55:32
●A20.50.153.392026-03-02 → 2026-03-02 · 3 obs
● 2026-03-02 08:55:30
● 2026-03-02 08:55:32
○A51.124.12.352026-03-02 → 2026-03-02 · 2 obs
○ 2026-03-02 08:55:32
○A51.141.37.2452017-08-21 → 2017-08-21 · 4 obs
● 2017-08-21 19:26:26
○ 2026-03-02 08:55:30
○ 2026-03-02 08:55:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, a.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net... | - |
| opencfd.com | x.ns.joker.com, y.ns.joker.com, z.ns.joker.com | 5 records |
✅ Authoritative Response
Server: 194.245.103.13
NS records: x.ns.joker.com, y.ns.joker.com, z.ns.joker.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opencfd.com (unsigned zone)
⏱️ Timing
Total: 274ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 20.50.153.39 |
| NS | 3 | y.ns.joker.com, z.ns.joker.com... |
| TXT | 1 | 60q0m8j4p603ct3rt3qfz98ftb95djf9 |
| SOA | 1 | x.ns.joker.com hostmaster.joker.com |
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (x.ns.joker.com, y.ns.joker.com, y.ns.joker.com...)
Analysis
IP Addresses
opencfd.com resolves to one IP number: 20.50.153.39.
Other host names, for instance bisser.io, deck.nl, htlwienwest.at, yogaguide.pl and novaz.be share IP numbers with opencfd.com.
Name Servers
opencfd.com is delegated to three name servers: x.ns.joker.com, y.ns.joker.com and z.ns.joker.com.
opencfd.com at least partially shares name servers with other domains, including bedc.info, ukrfood.com, exdci.eu, wallstnut.com and monmeetings.org.
These name servers are commonly used with a.ns.joker.com, b.ns.joker.com and c.ns.joker.com.
Hosts with two IPs:
y.ns.joker.com points to 2a01:4f8:c0c:165b::1 and 23.88.49.189.
z.ns.joker.com points to 2607:5300:203:7e6d::2222 and 192.95.37.184.
Host with one IP:
x.ns.joker.com points to 194.245.103.13.