`duoonline.com`

DNSSEC	⚠️ Not signed
A	207.148.248.143^{🇺🇸 EIG-29873207.148.248.0/24}
NS	`ns.buydomains.com` ⚠️ Not in zone NS records
		A	52.20.26.87^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-26-87.compute-1.amazonaws.com`
NS	`this-domain-for-sale.com` ⚠️ Not in zone NS records
		A	52.20.26.87^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-26-87.compute-1.amazonaws.com`

`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=1774389407

Same first word

duoonline.com

Similar names

eduonlion.com

niunoodle.com

douonline.com

oduonline.com

oduonline.net

DNS History

4 records (3 active, 1 former)

●NSns.buydomains.com2015-07-26 → 2026-03-24 · 2 obs

● 2015-07-26 17:26:42
● 2026-03-24 22:00:36

●NSthis-domain-for-sale.com2026-03-24 → 2026-03-24 · 2 obs

○ 2015-07-26 17:26:42
● 2026-03-24 22:00:36

●A207.148.248.1432015-11-26 → 2026-03-24 · 3 obs

○ 2015-07-26 17:26:42
● 2015-11-26 09:41:32
● 2026-03-24 22:00:36

○A66.151.181.492015-07-26 → 2015-07-26 · 3 obs

● 2015-07-26 17:26:42
○ 2015-11-26 09:41:32
○ 2026-03-24 22:00:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
duoonline.com	ns.buydomains.com, this-domain-for-sale.com	2 records

✅ Authoritative Response

Server:52.4.207.204

NS records: ns.buydomains.com, this-domain-for-sale.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duoonline.com (unsigned zone)

⏱️ Timing

Total: 90ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.148.248.143`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)

Analysis

IP Addresses

duoonline.com resolves to a single IP: 207.148.248.143.

Other host names, for instance dealhippy.com, boardingfacility.com, easyhaircare.com, bolz.org and hostmaster.cpgonline.com share IP numbers with duoonline.com.

Name Servers

duoonline.com has two name servers: this-domain-for-sale.com and ns.buydomains.com.

duoonline.com shares the same name server setup as other domains, for example billslistings.com, thriftycatalog.com, delishbites.com, cdrzone.com and dsdepot.com.

duoonline.com partially shares name servers with other domains, for instance biztoolbelt.com.

Host names with one IP number:

this-domain-for-sale.com points to: 52.20.26.87

ns.buydomains.com points to: 52.20.26.87

Names pointing to 52.20.26.87: this-domain-for-sale.com and ns.buydomains.com

duoonline.com - robtex.com

duoonline.com

com