csfr.fr - robtex.com
csfr.fr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 109.234.167.40🇫🇷 O2SWITCH109.234.164.0/22 | ||||||
| PTR | 109-234-167-40.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.csfr.fr ⭐ | ||||||
| A | 109.234.167.40🇫🇷 O2SWITCH109.234.164.0/22 | ||||||
| PTR | 109-234-167-40.reverse.odns.fr | ||||||
| TXT | v=spf1 ip4:109.234.167.40 +a +mx +include:spf.jabatus.fr ~all | ||||||
| SOA | ns1.o2switch.netsysadmin@o2switch.fr 2026-07-21 #4 | ||||||
fr
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.fr ⭐ | ||||||
| NS | d.nic.fr | ||||||
| NS | f.ext.nic.fr | ||||||
| NS | g.ext.nic.fr | ||||||
| TXT | 163 RRs processed [06/08/2026 17H00:51] | ||||||
| SOA | a.nic.frdnsmaster@afnic.fr serial=2246115791 | ||||||
Subdomains
mail.csfr.fr |
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSa.dns.gandi.net2015-06-12 → 2015-06-12 · 3 obs
○ 2015-10-26 01:21:02
○ 2026-08-06 17:08:10
○NSb.dns.gandi.net2015-06-12 → 2015-06-12 · 3 obs
○ 2015-10-26 01:21:02
○ 2026-08-06 17:08:10
○NSc.dns.gandi.net2015-06-12 → 2015-06-12 · 3 obs
○ 2015-10-26 01:21:02
○ 2026-08-06 17:08:10
●NSns1.o2switch.net2026-06-24 → 2026-08-06 · 3 obs
● 2026-06-24 11:46:50
● 2026-08-06 17:08:10
●NSns2.o2switch.net2026-06-24 → 2026-08-06 · 3 obs
● 2026-06-24 11:46:50
● 2026-08-06 17:08:10
●MXmail.csfr.fr2026-08-05 → 2026-08-06 · 3 obs
● 2026-08-05 20:02:56
● 2026-08-06 17:08:10
○MXmta-gw.infomaniak.ch2015-06-12 → 2015-06-12 · 3 obs
○ 2015-10-26 01:21:02
○ 2026-08-06 17:08:10
●A109.234.167.402026-08-05 → 2026-08-06 · 3 obs
● 2026-08-05 20:02:56
● 2026-08-06 17:08:10
○A93.88.251.2512015-06-12 → 2015-06-12 · 3 obs
○ 2015-10-26 01:21:02
○ 2026-08-06 17:08:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| fr | d.nic.fr, f.ext.nic.fr, g.ext.nic.fr | - |
| csfr.fr | 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 csfr.fr (unsigned zone)
⏱️ Timing
Total: 1062ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 109.234.167.40 |
| NS | 2 | ns1.o2switch.net, ns2.o2switch.net |
| MX | 1 | mail.csfr.fr (pri: 0) |
| TXT | 1 | v=spf1 ip4:109.234.167.40 +a +mx +includ |
| SOA | 1 | ns1.o2switch.net sysadmin.o2switch.fr |
Analysis
Hierarchy
The domain mail.csfr.fr falls under the parent csfr.fr.
IP Addresses
csfr.fr has exactly one IP address — 109.234.167.40.
kia.kia-tressol-chabrier.com, cafe-expresso.org, mail.cafe-expresso.org plus two other host names have IP numbers in common with csfr.fr.
Name Servers
csfr.fr uses two name servers for its delegation: ns1.o2switch.net and ns2.o2switch.net.
The name server configuration of csfr.fr is shared with other domains, for instance creetarealite.com, tnlnk.fr, xantah.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
csfr.fr uses one mail server — mail.csfr.fr.
mail.csfr.fr directs to just one IP number, 109.234.167.40.