rb.org - robtex.com
rb.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 72.250.121.109🇺🇸 Flexential72.250.120.0/21 | ||||||
| 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 | ||||||
| MX | rb.org ⭐ | ||||||
| A | 72.250.121.109🇺🇸 Flexential72.250.120.0/21 | ||||||
| MX | youth.net(80) | ||||||
| A | 99.8.167.28🇺🇸 AS701899.8.0.0/15 | ||||||
| TXT | v=spf1 ip4:72.250.121.109 ip4:139.64.246.184 -all | ||||||
| SOA | x.ns.joker.comhostmaster@joker.com 2025-07-12 #24 | ||||||
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=1778336655 | ||||||
Previously NS for
MX for
rb.org |
Previously MX for
www.rb.org |
Subdomains
Same first word
Similar names
DNS History
16 records (6 active, 10 former)
○NScac.rb.org2017-05-18 → 2019-08-08 · 5 obs
● 2017-05-18 20:11:02
● 2019-08-08 23:43:00
○ 2020-01-13 05:19:00
○ 2026-05-09 14:33:44
○NScac0.rb.org2020-01-13 → 2020-05-18 · 5 obs
● 2020-01-13 05:19:00
● 2020-05-18 23:25:44
○ 2026-02-18 06:38:32
○ 2026-05-09 14:33:44
○NScac1.rb.org2019-08-08 → 2020-05-18 · 5 obs
● 2019-08-08 23:43:00
● 2020-05-18 23:25:44
○ 2026-02-18 06:38:32
○ 2026-05-09 14:33:44
○NScac2.rb.org2020-01-13 → 2020-05-18 · 5 obs
● 2020-01-13 05:19:00
● 2020-05-18 23:25:44
○ 2026-02-18 06:38:32
○ 2026-05-09 14:33:44
○NSns.rb.org2015-09-01 → 2020-05-18 · 4 obs
● 2020-05-18 23:25:44
○ 2026-02-18 06:38:32
○ 2026-05-09 14:33:44
○NSns.youth.net2015-09-01 → 2020-05-18 · 4 obs
● 2020-05-18 23:25:44
○ 2026-02-18 06:38:32
○ 2026-05-09 14:33:44
○NSrb.org2015-09-01 → 2020-05-18 · 4 obs
● 2020-05-18 23:25:44
○ 2026-02-18 06:38:32
○ 2026-05-09 14:33:44
●NSx.ns.joker.com2026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 06:38:32
● 2026-05-09 14:33:44
●NSy.ns.joker.com2026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 06:38:32
● 2026-05-09 14:33:44
●NSz.ns.joker.com2026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 06:38:32
● 2026-05-09 14:33:44
○NSzook.lafn.org2017-05-18 → 2017-05-25 · 5 obs
● 2017-05-18 20:11:02
● 2017-05-25 00:37:14
○ 2017-06-30 19:16:10
○ 2026-05-09 14:33:44
●MXrb.org2015-09-01 → 2026-05-09 · 2 obs
● 2026-05-09 14:33:44
●MXyouth.net2019-08-08 → 2026-05-09 · 3 obs
● 2019-08-08 23:43:00
● 2026-05-09 14:33:44
○A64.170.61.222015-09-01 → 2017-08-25 · 4 obs
● 2017-08-25 02:36:40
○ 2019-08-08 23:43:00
○ 2026-05-09 14:33:44
○A68.127.251.1332019-08-08 → 2020-05-18 · 5 obs
● 2019-08-08 23:43:00
● 2020-05-18 23:25:44
○ 2026-02-18 06:38:32
○ 2026-05-09 14:33:44
●A72.250.121.1092026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 06:38:32
● 2026-05-09 14:33:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| rb.org | z.ns.joker.com, x.ns.joker.com, y.ns.joker.com | - |
✅ Authoritative Response
Server:192.95.37.184
NS records: z.ns.joker.com, x.ns.joker.com, y.ns.joker.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rb.org (unsigned zone)
⏱️ Timing
Total: 669ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 72.250.121.109 |
| NS | 3 | z.ns.joker.com, x.ns.joker.com... |
| MX | 2 | youth.net (pri: 80), rb.org (pri: 50) |
| TXT | 1 | v=spf1 ip4:72.250.121.109 ip4:139.64.246 |
| SOA | 1 | x.ns.joker.com hostmaster.joker.com |
Analysis
Hierarchy
rb.org is a parent of ns.rb.org, www.rb.org, cac1.rb.org, cac0.rb.org and cac.rb.org.
Mail Server Role
rb.org is the mail server for rb.org.
Together with rb.org, youth.net is commonly used as a mail server.
IP Addresses
rb.org resolves to a single IP: 72.250.121.109.
Other host names, for instance, ns.rb.org and bisbey.com share IP numbers with rb.org.
Name Servers
rb.org delegates to three name servers: x.ns.joker.com, y.ns.joker.com and z.ns.joker.com.
rb.org shares some name servers with other domains, for example celebrity-link.com, styleriser.com, ldoa.com, bifest.org and fotoflight.de.
These name servers are often used together with a.ns.joker.com, b.ns.joker.com and c.ns.joker.com.
Host names with two IP numbers:
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 names with one IP number:
x.ns.joker.com points to 194.245.103.13.
Mail Servers
rb.org is handled by two mail servers: youth.net and rb.org.
rb.org shares at least some mail servers with other domains, for example youth.net.
Host names with a single IP:
youth.net points to 99.8.167.28
rb.org points to 72.250.121.109