`duoduonetwork.com`

	CNAME	`exp.gs-cdn.com`
	DNSSEC	⚠️ Not signed
	A	172.65.190.172^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`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=1776034647

⚠️ On DNS blocklist: tif

Same first word

duoduonetwork.com

DNS History

6 records (3 active, 3 former)

○NSandronicus.ns.cloudflare.com2026-04-03 → 2026-04-03 · 2 obs

● 2026-04-03 20:06:40
○ 2026-04-12 23:18:38

○NSaria.ns.cloudflare.com2026-04-03 → 2026-04-03 · 2 obs

● 2026-04-03 20:06:40
○ 2026-04-12 23:18:38

●NSexpire1.gname-dns.com2026-04-12 → 2026-04-12 · 2 obs

○ 2026-04-03 20:06:40
● 2026-04-12 23:18:38

●NSexpire2.gname-dns.com2026-04-12 → 2026-04-12 · 2 obs

○ 2026-04-03 20:06:40
● 2026-04-12 23:18:38

○MXduoduonetwork-com.mail.protection.outlook.com2026-04-03 → 2026-04-03 · 2 obs

● 2026-04-03 20:06:40
○ 2026-04-12 23:18:38

●CNAMEexp.gs-cdn.com2026-04-12 → 2026-04-12 · 1 obs

● 2026-04-12 23:18:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
duoduonetwork.com	expire1.gname-dns.com, expire2.gname-dns.com	2 records

✅ Authoritative Response

Server:172.64.53.233

NS records: expire1.gname-dns.com, expire2.gname-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duoduonetwork.com (unsigned zone)

⏱️ Timing

Total: 641ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`expire1.gname-dns.com, expire2.gname-dns.com`
CNAME	1	`exp.gs-cdn.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (expire1.gname-dns.com, expire2.gname-dns.com)

Analysis

IP Addresses

duoduonetwork.com resolves to one IP number: 172.65.190.172.

Other host names, for instance 0syn.com, 5510000.cc and exp.gs-cdn.com share IP numbers with duoduonetwork.com.

duoduonetwork.com - robtex.com