`dufour-corso.com`

DNSSEC	⚠️ Not signed
A	208.42.238.172^{🇺🇸 DATA393208.42.224.0/19 Data393 Colocation}
		PTR	`cpanel2.icelab.net`
NS	`dnsmaster.firstworld.net` ⭐
		A	205.209.44.10^{🇺🇸 DATA393205.209.44.0/24}
			PTR	`ns1.wwow.com`
NS	`ns1.firstworld.net` ⚠️ Not in parent delegation
		A	65.38.162.10^{🇺🇸 DATA39365.38.162.0/24}
			PTR	`ns1.icelab.net`
NS	`ns1.hugehosting.com` ⚠️ Not in zone NS records
		A	64.92.214.10^{🇺🇸 DATA39364.92.192.0/19 Data393 Colocation}
			PTR	`ns1.psax001.hosting393.net`
NS	`ns2.firstworld.net` ⚠️ Not in parent delegation
		A	205.209.45.10^{🇺🇸 DATA393205.209.45.0/24}
			PTR	`ns2.wwow.com`
NS	`ns2.hugehosting.com` ⚠️ Not in zone NS records
		A	205.209.45.10^{🇺🇸 DATA393205.209.45.0/24}
			PTR	`ns2.wwow.com`
MX	`mail.dufour-corso.com` ⭐
		A	208.42.238.172^{🇺🇸 DATA393208.42.224.0/19 Data393 Colocation}
			PTR	`cpanel2.icelab.net`
TXT	`v=spf1 mx -all`
SOA	`dnsmaster.firstworld.net`hostmaster@firstworld.net 2017-12-11 #1

`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=1774624217

Subdomains

mail.dufour-corso.com

Same first word

dufour-corso.com

DNS History

8 records (7 active, 1 former)

●NSdnsmaster.firstworld.net2015-07-03 → 2026-03-27 · 2 obs

● 2015-07-03 05:00:26
● 2026-03-27 15:15:22

●NSns1.firstworld.net2015-07-03 → 2026-03-27 · 2 obs

● 2015-07-03 05:00:26
● 2026-03-27 15:15:22

●NSns1.hugehosting.com2026-03-26 → 2026-03-27 · 3 obs

○ 2015-07-03 05:00:26
● 2026-03-26 07:42:16
● 2026-03-27 15:15:22

●NSns2.firstworld.net2015-07-03 → 2026-03-27 · 2 obs

● 2015-07-03 05:00:26
● 2026-03-27 15:15:22

●NSns2.hugehosting.com2026-03-26 → 2026-03-27 · 3 obs

○ 2015-07-03 05:00:26
● 2026-03-26 07:42:16
● 2026-03-27 15:15:22

●MXmail.dufour-corso.com2015-07-03 → 2026-03-27 · 2 obs

● 2015-07-03 05:00:26
● 2026-03-27 15:15:22

○A208.42.237.1482015-07-03 → 2017-02-19 · 4 obs

● 2015-07-03 05:00:26
● 2017-02-19 05:26:56
○ 2026-03-26 07:42:16
○ 2026-03-27 15:15:22

●A208.42.238.1722026-03-26 → 2026-03-27 · 3 obs

○ 2017-02-19 05:26:56
● 2026-03-26 07:42:16
● 2026-03-27 15:15:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
dufour-corso.com	ns1.hugehosting.com, ns2.hugehosting.com	2 records

✅ Authoritative Response

Server:205.209.44.10

NS records: ns1.hugehosting.com, ns2.hugehosting.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dufour-corso.com (unsigned zone)

⏱️ Timing

Total: 238ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`208.42.238.172`
NS	2	`ns2.firstworld.net, ns1.firstworld.net`
MX	1	`mail.dufour-corso.com (pri: 10)`
TXT	1	`v=spf1 mx -all`
SOA	1	`dnsmaster.firstworld.net hostmaster.firs`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.hugehosting.com, ns2.hugehosting.com)

Analysis

Hierarchy

dufour-corso.com is the parent of mail.dufour-corso.com.

IP Addresses

dufour-corso.com resolves to one IP number: 208.42.238.172.

other host names including www.thepotters.com, torusugita.net, mail.isvcams.com, mail.tom-dow.com and egyptology.com share IP numbers with dufour-corso.com.

Name Servers

dufour-corso.com is delegated to five name servers: ns1.hugehosting.com, ns2.hugehosting.com, dnsmaster.firstworld.net, ns1.firstworld.net and ns2.firstworld.net.

dufour-corso.com at least partially shares name servers with other domains, for instance lemkhin.com, friedmanchiro.com, isvcams.com, moviecard.com and tissufect.com.