mathdir.org - dns.ninja
mathdir.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 109.234.165.70🇫🇷 O2SWITCH109.234.164.0/22 | ||||||
| PTR | 109-234-165-70.reverse.odns.fr | ||||||
| NS | ns1.o2switch.net ⭐ | ||||||
| A | 109.234.160.5🇫🇷 O2SWITCH109.234.160.0/24 o2switch Internet Routing | ||||||
| PTR | ns1.o2switch.net | ||||||
| NS | ns2.o2switch.net | ||||||
| A | 109.234.161.5🇫🇷 O2SWITCH109.234.161.0/24 o2switch Internet Routing | ||||||
| PTR | ns2.o2switch.net | ||||||
| MX | mail.mathdir.org ⭐ | ||||||
| A | 109.234.165.70🇫🇷 O2SWITCH109.234.164.0/22 | ||||||
| PTR | 109-234-165-70.reverse.odns.fr | ||||||
| TXT | v=spf1 ip4:109.234.165.70 +a +mx +ip4:109.234.163.0/24 ~all | ||||||
| SOA | ns1.o2switch.netsystemshl@o2switch.fr 2026-07-15 #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=1786429753 | ||||||
Subdomains
mail.mathdir.org |
Same first word
mathdir.org |
Similar names
DNS History
14 records (4 active, 10 former)
○NSdns1.name-services.com2015-08-20 → 2017-09-19 · 4 obs
● 2017-09-19 16:26:00
○ 2026-02-26 18:32:58
○ 2026-08-11 06:42:56
○NSdns2.name-services.com2015-08-20 → 2017-09-19 · 4 obs
● 2017-09-19 16:26:00
○ 2026-02-26 18:32:58
○ 2026-08-11 06:42:56
○NSdns3.name-services.com2015-08-20 → 2017-09-19 · 4 obs
● 2017-09-19 16:26:00
○ 2026-02-26 18:32:58
○ 2026-08-11 06:42:56
○NSdns4.name-services.com2015-08-20 → 2017-09-19 · 4 obs
● 2017-09-19 16:26:00
○ 2026-02-26 18:32:58
○ 2026-08-11 06:42:56
○NSdns5.name-services.com2015-08-20 → 2017-09-19 · 4 obs
● 2017-09-19 16:26:00
○ 2026-02-26 18:32:58
○ 2026-08-11 06:42:56
●NSns1.o2switch.net2026-02-26 → 2026-08-11 · 3 obs
● 2026-02-26 18:32:58
● 2026-08-11 06:42:56
●NSns2.o2switch.net2026-02-26 → 2026-08-11 · 3 obs
● 2026-02-26 18:32:58
● 2026-08-11 06:42:56
○MXeforwardct.name-services.com2015-08-20 → 2017-06-29 · 4 obs
● 2017-06-29 14:14:22
○ 2017-08-05 22:14:22
○ 2026-08-11 06:42:56
○MXeforwardct2.name-services.com2015-08-20 → 2017-06-29 · 4 obs
● 2017-06-29 14:14:22
○ 2017-08-05 22:14:22
○ 2026-08-11 06:42:56
○MXeforwardct3.name-services.com2015-08-20 → 2017-06-29 · 4 obs
● 2017-06-29 14:14:22
○ 2017-08-05 22:14:22
○ 2026-08-11 06:42:56
●MXmail.mathdir.org2026-02-26 → 2026-08-11 · 3 obs
● 2026-02-26 18:32:58
● 2026-08-11 06:42:56
○MXmx.mathdir.org.cust.a.hostedemail.com2017-08-05 → 2017-09-19 · 5 obs
● 2017-08-05 22:14:22
● 2017-09-19 16:26:00
○ 2026-02-26 18:32:58
○ 2026-08-11 06:42:56
●A109.234.165.702026-02-26 → 2026-08-11 · 3 obs
● 2026-02-26 18:32:58
● 2026-08-11 06:42:56
○A144.76.111.492015-08-20 → 2017-09-19 · 4 obs
● 2017-09-19 16:26:00
○ 2026-02-26 18:32:58
○ 2026-08-11 06:42:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org | - |
| mathdir.org | ns2.o2switch.net, ns1.o2switch.net | - |
✅ Authoritative Response
Server:109.234.161.5
NS records: ns2.o2switch.net, ns1.o2switch.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathdir.org (unsigned zone)
⏱️ Timing
Total: 537ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 109.234.165.70 |
| NS | 2 | ns2.o2switch.net, ns1.o2switch.net |
| MX | 1 | mail.mathdir.org (pri: 0) |
| TXT | 1 | v=spf1 ip4:109.234.165.70 +a +mx +ip4:10 |
| SOA | 1 | ns1.o2switch.net systemshl.o2switch.fr |
Analysis
Hierarchy
The domain mail.mathdir.org falls under the parent mathdir.org.
IP Addresses
mathdir.org points to a single IP number: 109.234.165.70.
Additional host names — astrophile.net, mail.agendadulibre.ch, mail.deltasoft.at and two others — share IP numbers with mathdir.org.
Name Servers
Two name servers handle the delegation for mathdir.org: ns1.o2switch.net and ns2.o2switch.net.
mathdir.org shares its name server setup with other domains, including pitoux.com, onic.fr, ijustvalue.com and two others.
Each of ns1.o2switch.net and ns2.o2switch.net has one IP address: ns1.o2switch.net uses 109.234.160.5 and ns2.o2switch.net uses 109.234.161.5.
Mail Servers
mathdir.org has one mail server: mail.mathdir.org.
mail.mathdir.org carries a single IP number, which is 109.234.165.70.