`formation-dcg.com`

DNSSEC	⚠️ Not signed
A	185.246.47.64^{🇫🇷 O2SWITCH185.246.44.0/22 o2switch Internet Routing}
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.formation-dcg.com` ⭐
		A	109.234.162.239^{🇫🇷 O2SWITCH109.234.162.0/24 o2switch Internet Routing}
			PTR	`109-234-162-239.reverse.odns.fr`
TXT	`v=spf1 ip4:109.234.162.239 +a +mx +include:spf.jabatus.fr ~all`
SOA	`ns1.o2switch.net`systemshl@o2switch.fr 2024-01-10 #8

`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.net`nstld@verisign-grs.com serial=1785004117

Same first word

formation-dcg.com

Similar names

dgc-formation.com

DNS History

6 records (4 active, 2 former)

○NSdns.ovh.net2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 06:32:16
○ 2015-10-13 02:30:30
○ 2026-07-25 18:50:58

○NSns.ovh.net2008-03-15 → 2008-03-15 · 3 obs

● 2008-03-15 06:32:16
○ 2015-10-13 02:30:30
○ 2026-07-25 18:50:58

●NSns1.o2switch.net2026-02-19 → 2026-07-25 · 6 obs

○ 2015-10-13 02:30:30
● 2026-02-19 09:49:04
● 2026-03-06 14:05:38
○ 2026-03-09 13:41:44
● 2026-04-06 16:36:18
● 2026-07-25 18:50:58

●NSns2.o2switch.net2026-02-19 → 2026-07-25 · 6 obs

○ 2015-10-13 02:30:30
● 2026-02-19 09:49:04
● 2026-03-06 14:05:38
○ 2026-03-09 13:41:44
● 2026-04-06 16:36:18
● 2026-07-25 18:50:58

●MXmail.formation-dcg.com2026-02-19 → 2026-07-25 · 7 obs

● 2026-02-19 09:49:04
● 2026-03-06 14:05:38
○ 2026-03-09 13:41:44
● 2026-04-06 16:36:18
○ 2026-04-07 11:22:54
● 2026-06-12 08:37:44
● 2026-07-25 18:50:58

●A185.246.47.642026-02-19 → 2026-07-25 · 7 obs

● 2026-02-19 09:49:04
● 2026-03-06 14:05:38
○ 2026-03-09 13:41:44
● 2026-04-06 16:36:18
○ 2026-04-07 11:22:54
● 2026-06-12 08:37:44
● 2026-07-25 18:50:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
formation-dcg.com	ns1.o2switch.net, ns2.o2switch.net	-

✅ Authoritative Response

Server:109.234.161.5

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for formation-dcg.com (unsigned zone)

⏱️ Timing

Total: 493ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.246.47.64`
NS	2	`ns2.o2switch.net, ns1.o2switch.net`
MX	1	`mail.formation-dcg.com (pri: 0)`
TXT	1	`v=spf1 ip4:109.234.162.239 +a +mx +inclu`
SOA	1	`ns1.o2switch.net systemshl.o2switch.fr`

Analysis

IP Addresses

formation-dcg.com resolves to just one IP address, 185.246.47.64.

Two other host names, along with dennisinter.com, agence-immobiliere-lyon.com and avocat-entreprise.fr, also share IP numbers with formation-dcg.com.

Name Servers

formation-dcg.com uses two name servers for its delegation: ns1.o2switch.net and ns2.o2switch.net.

formation-dcg.com shares its NS records with other domains, for example thebikevillage.com, reves-et-dragees.fr, super-regular.fr and two others.

At least some of formation-dcg.com's name servers are also used by other domains, among them restaurant-legraindesable.com.

ns1.o2switch.net and ns2.o2switch.net each resolve to one IP number: ns1.o2switch.net points to 109.234.160.5 and ns2.o2switch.net points to 109.234.161.5.

Mail Servers

The sole mail server for formation-dcg.com is mail.formation-dcg.com.

mail.formation-dcg.com directs to just one IP number, 109.234.162.239.

formation-dcg.com - robtex.com