`duplan-engineering.com`

DNSSEC	⚠️ Not signed
A	109.234.165.69^{🇫🇷 O2SWITCH109.234.164.0/22}
		PTR	`109-234-165-69.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.duplan-engineering.com` ⭐
		A	109.234.165.69^{🇫🇷 O2SWITCH109.234.164.0/22}
			PTR	`109-234-165-69.reverse.odns.fr`
TXT	`v=spf1 +a +mx +ip4:109.234.165.69 include:spf.jabatus.fr ~all`
SOA	`ns1.o2switch.net`support@o2switch.fr 2023-02-15 #0

`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=1774865612

Subdomains

mail.duplan-engineering.com

Same first word

duplan-engineering.com

DNS History

4 records (4 active, 0 former)

●NSns1.o2switch.net2020-01-10 → 2026-03-30 · 2 obs

● 2020-01-10 14:52:46
● 2026-03-30 10:14:46

●NSns2.o2switch.net2020-01-10 → 2026-03-30 · 2 obs

● 2020-01-10 14:52:46
● 2026-03-30 10:14:46

●MXmail.duplan-engineering.com2020-01-10 → 2026-03-30 · 2 obs

● 2020-01-10 14:52:46
● 2026-03-30 10:14:46

●A109.234.165.692020-01-10 → 2026-03-30 · 2 obs

● 2020-01-10 14:52:46
● 2026-03-30 10:14:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
duplan-engineering.com	ns1.o2switch.net, ns2.o2switch.net	-

✅ Authoritative Response

Server:109.234.160.5

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duplan-engineering.com (unsigned zone)

⏱️ Timing

Total: 522ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`109.234.165.69`
NS	2	`ns2.o2switch.net, ns1.o2switch.net`
MX	1	`mail.duplan-engineering.com (pri: 0)`
TXT	1	`v=spf1 +a +mx +ip4:109.234.165.69 includ`
SOA	1	`ns1.o2switch.net support.o2switch.fr`

Analysis

Hierarchy

duplan-engineering.com is a parent of mail.duplan-engineering.com.

IP Addresses

duplan-engineering.com points to a single IP address: 109.234.165.69.

Other host names such as mail.proximed.fr, mail.tour-de-corse.com, prod-nova.com, jgdjconseil.fr and denof.com share IP numbers with duplan-engineering.com.

Name Servers

duplan-engineering.com is delegated to two name servers: ns1.o2switch.net and ns2.o2switch.net.

duplan-engineering.com uses the same name server setup as other domains, including spacenet.fr, sogical.com, chaleurterre.com, royalsharpei.com and campinglaresidence.com.

Hostnames with a single IP

ns1.o2switch.net resolves to: 109.234.160.5.

ns2.o2switch.net resolves to: 109.234.161.5.

Mail Servers

The mail server for duplan-engineering.com is mail.duplan-engineering.com.

Host mail.duplan-engineering.com points to IP 109.234.165.69.

duplan-engineering.com - robtex.com