`coopmaths.fr`

DNSSEC	⚠️ Not signed
A	185.154.137.156^{🇫🇷 O2SWITCH185.154.136.0/22}
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.coopmaths.fr` ⭐
		A	109.234.166.35^{🇫🇷 O2SWITCH109.234.164.0/22}
			PTR	`109-234-166-35.reverse.odns.fr`
TXT	`v=spf1 ip4:109.234.166.35 +a +mx +include:spf.jabatus.fr ~all`
SOA	`ns1.o2switch.net`sysadmin@o2switch.fr 2026-03-17 #0

`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	`14 RRs processed [14/04/2026 02H50:49]`
	SOA	`a.nic.fr`dnsmaster@afnic.fr serial=2244835786

Subdomains

mail.coopmaths.fr

Same first word

coopmaths.fr

Similar names

DNS History

5 records (4 active, 1 former)

●NSns1.o2switch.net2026-02-25 → 2026-04-14 · 2 obs

● 2026-02-25 01:49:30
● 2026-04-14 03:03:22

●NSns2.o2switch.net2026-02-25 → 2026-04-14 · 2 obs

● 2026-02-25 01:49:30
● 2026-04-14 03:03:22

●MXmail.coopmaths.fr2026-02-25 → 2026-04-14 · 5 obs

● 2026-02-25 01:49:30
● 2026-03-06 20:13:14
○ 2026-03-09 13:42:02
● 2026-04-12 16:50:38
● 2026-04-14 03:03:22

●A185.154.137.1562026-04-12 → 2026-04-14 · 3 obs

○ 2026-03-09 13:42:02
● 2026-04-12 16:50:38
● 2026-04-14 03:03:22

○A185.246.44.1212026-02-25 → 2026-03-06 · 4 obs

● 2026-02-25 01:49:30
● 2026-03-06 20:13:14
○ 2026-03-09 13:42:02
○ 2026-04-14 03:03:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
fr	f.ext.nic.fr, d.nic.fr, g.ext.nic.fr	-
coopmaths.fr	ns2.o2switch.net, ns1.o2switch.net	-

✅ Authoritative Response

Server:109.234.160.5

NS records: ns2.o2switch.net, ns1.o2switch.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coopmaths.fr (unsigned zone)

⏱️ Timing

Total: 926ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.154.137.156`
NS	2	`ns1.o2switch.net, ns2.o2switch.net`
MX	1	`mail.coopmaths.fr (pri: 0)`
TXT	1	`v=spf1 ip4:109.234.166.35 +a +mx +includ`
SOA	1	`ns1.o2switch.net sysadmin.o2switch.fr`

Analysis

Hierarchy

coopmaths.fr is parent of mail.coopmaths.fr.

IP Addresses

coopmaths.fr points to a single IP: 185.154.137.156.

Other host names, for instance villaartwork.com, stop-dechets.fr, forumdesforums.com, tcmlogos.com and booksparis.com share IP numbers with coopmaths.fr.

Name Servers

coopmaths.fr's delegation is to two name servers ns1.o2switch.net and ns2.o2switch.net.

coopmaths.fr shares the same name server configuration as other domains, such as wind-age.fr, amateursdedrones.fr, pointf.fr, top-porte.fr and treuzkas.net.

Host names with a single IP:

ns1.o2switch.net resolves to 109.234.160.5.

ns2.o2switch.net resolves to 109.234.161.5.

Mail Servers

coopmaths.fr is served by a single mail server, mail.coopmaths.fr.

mail.coopmaths.fr points to IP number 109.234.166.35.

coopmaths.fr - robtex.com

coopmaths.fr

fr