`duoworld.com`

DNSSEC	⚠️ Not signed
A	66.42.74.131^{🇺🇸 AS-VULTR66.42.64.0/20 Vultr Assigned Prefix}
		PTR	`66.42.74.131.vultrusercontent.com`
NS	`ns-1202.awsdns-22.org` ⭐
		A	2600:9000:5304:b200::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1202.awsdns-22.org`
		A	205.251.196.178^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1202.awsdns-22.org`
NS	`ns-1666.awsdns-16.co.uk`
		A	2600:9000:5306:8200::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1666.awsdns-16.co.uk`
		A	205.251.198.130^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1666.awsdns-16.co.uk`
NS	`ns-409.awsdns-51.com`
		A	2600:9000:5301:9900::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-409.awsdns-51.com`
		A	205.251.193.153^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-409.awsdns-51.com`
NS	`ns-610.awsdns-12.net`
		A	2600:9000:5302:6200::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-610.awsdns-12.net`
		A	205.251.194.98^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-610.awsdns-12.net`
MX	`us2.mx3.mailhostbox.com` ⭐
		A	162.215.3.25^{🇺🇸 EIGI162.214.0.0/15 Unified Layer}
			PTR	`162-215-3-25.unifiedlayer.com`
MX	`us2.mx1.mailhostbox.com`⁽²⁾
		A	162.215.3.26^{🇺🇸 EIGI162.214.0.0/15 Unified Layer}
			PTR	`162-215-3-26.unifiedlayer.com`
MX	`us2.mx2.mailhostbox.com`⁽³⁾
		A	162.215.2.27^{🇺🇸 EIGI162.214.0.0/15 Unified Layer}
			PTR	`162-215-2-27.unifiedlayer.com`
TXT	`v=spf1 redirect=_spf.mailhostbox.com`
SOA	`ns-1202.awsdns-22.org`awsdns-hostmaster@amazon.com serial=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=1776012537

Subdomains

www.duoworld.com

Same first word

duoworld.com

Similar names

oudworld.ae

loudword.com

rolddouw.es

DNS History

21 records (8 active, 13 former)

●NSns-1202.awsdns-22.org2026-03-22 → 2026-04-12 · 3 obs

○ 2017-03-13 09:37:20
● 2026-03-22 09:38:30
● 2026-04-12 16:53:40

●NSns-1666.awsdns-16.co.uk2026-03-22 → 2026-04-12 · 3 obs

○ 2017-03-13 09:37:20
● 2026-03-22 09:38:30
● 2026-04-12 16:53:40

●NSns-409.awsdns-51.com2026-03-22 → 2026-04-12 · 3 obs

○ 2017-03-13 09:37:20
● 2026-03-22 09:38:30
● 2026-04-12 16:53:40

●NSns-610.awsdns-12.net2026-03-22 → 2026-04-12 · 3 obs

○ 2017-03-13 09:37:20
● 2026-03-22 09:38:30
● 2026-04-12 16:53:40

○NSns-cloud-e1.googledomains.com2015-12-03 → 2017-03-13 · 5 obs

○ 2015-08-18 12:45:42
● 2015-12-03 03:43:22
● 2017-03-13 09:37:20
○ 2026-03-22 09:38:30
○ 2026-04-12 16:53:40

○NSns-cloud-e2.googledomains.com2015-12-03 → 2017-03-13 · 5 obs

○ 2015-08-18 12:45:42
● 2015-12-03 03:43:22
● 2017-03-13 09:37:20
○ 2026-03-22 09:38:30
○ 2026-04-12 16:53:40

○NSns-cloud-e3.googledomains.com2015-12-03 → 2017-03-13 · 5 obs

○ 2015-08-18 12:45:42
● 2015-12-03 03:43:22
● 2017-03-13 09:37:20
○ 2026-03-22 09:38:30
○ 2026-04-12 16:53:40

○NSns-cloud-e4.googledomains.com2015-12-03 → 2017-03-13 · 5 obs

○ 2015-08-18 12:45:42
● 2015-12-03 03:43:22
● 2017-03-13 09:37:20
○ 2026-03-22 09:38:30
○ 2026-04-12 16:53:40

○NSns55.domaincontrol.com2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 12:45:42
○ 2015-12-03 03:43:22
○ 2026-04-12 16:53:40

○NSns56.domaincontrol.com2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 12:45:42
○ 2015-12-03 03:43:22
○ 2026-04-12 16:53:40

○MXaspmx.l.google.com2017-03-13 → 2017-03-13 · 4 obs

○ 2015-12-03 03:43:22
● 2017-03-13 09:37:20
○ 2026-03-22 09:38:30
○ 2026-04-12 16:53:40

○MXmailstore1.secureserver.net2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 12:45:42
○ 2015-12-03 03:43:22
○ 2026-04-12 16:53:40

○MXsmtp.secureserver.net2015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 12:45:42
○ 2015-12-03 03:43:22
○ 2026-04-12 16:53:40

●MXus2.mx1.mailhostbox.com2026-03-22 → 2026-04-12 · 3 obs

○ 2017-03-13 09:37:20
● 2026-03-22 09:38:30
● 2026-04-12 16:53:40

●MXus2.mx2.mailhostbox.com2026-03-22 → 2026-04-12 · 3 obs

○ 2017-03-13 09:37:20
● 2026-03-22 09:38:30
● 2026-04-12 16:53:40

●MXus2.mx3.mailhostbox.com2026-03-22 → 2026-04-12 · 3 obs

○ 2017-03-13 09:37:20
● 2026-03-22 09:38:30
● 2026-04-12 16:53:40

○A104.155.230.2542015-12-03 → 2015-12-03 · 4 obs

○ 2015-08-18 12:45:42
● 2015-12-03 03:43:22
○ 2016-01-26 15:10:22
○ 2026-04-12 16:53:40

○A104.155.236.1552016-01-26 → 2016-01-26 · 4 obs

○ 2015-12-03 03:43:22
● 2016-01-26 15:10:22
○ 2017-03-13 09:37:20
○ 2026-04-12 16:53:40

○A104.199.145.812017-03-13 → 2017-03-13 · 4 obs

○ 2016-01-26 15:10:22
● 2017-03-13 09:37:20
○ 2026-03-22 09:38:30
○ 2026-04-12 16:53:40

○A184.168.221.582015-08-18 → 2015-08-18 · 3 obs

● 2015-08-18 12:45:42
○ 2015-12-03 03:43:22
○ 2026-04-12 16:53:40

●A66.42.74.1312026-03-22 → 2026-04-12 · 3 obs

○ 2017-03-13 09:37:20
● 2026-03-22 09:38:30
● 2026-04-12 16:53:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, e.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net...	-
duoworld.com	ns-610.awsdns-12.net, ns-409.awsdns-51.com, ns-1666.awsdns-16.co.uk, ns-1202.awsdns-22.org	1 record

✅ Authoritative Response

Server:205.251.196.178

NS records: ns-610.awsdns-12.net, ns-409.awsdns-51.com, ns-1666.awsdns-16.co.uk, ns-1202.awsdns-22.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duoworld.com (unsigned zone)

⏱️ Timing

Total: 478ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`66.42.74.131`
NS	4	`ns-1202.awsdns-22.org, ns-1666.awsdns-16.co.uk...`
MX	3	`us2.mx3.mailhostbox.com (pri: 1), us2.mx1.mailhostbox.com (pri: 2)...`
TXT	1	`v=spf1 redirect=_spf.mailhostbox.com`
SOA	1	`ns-1202.awsdns-22.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-409.awsdns-51.com)

Analysis

Hierarchy

duoworld.com is the parent of www.duoworld.com.

IP Addresses

duoworld.com resolves to one IP number: 66.42.74.131.

Other host names, for instance www.facetone.com, facetone.com and www.duoworld.com share IP numbers with duoworld.com.

Name Servers

duoworld.com is delegated to four name servers: ns-409.awsdns-51.com, ns-610.awsdns-12.net, ns-1202.awsdns-22.org and ns-1666.awsdns-16.co.uk.

duoworld.com at least partially shares name servers with other domains, for instance d1s100odp7ul8t.cloudfront.net, gousaku.jp, inbal-therapy.com, messages.boat-lifestyle.com and gays2(0x6675636b).com.

Host names with two IP numbers:

ns-409.awsdns-51.com points to 2600:9000:5301:9900::1 and 205.251.193.153; ns-610.awsdns-12.net points to 2600:9000:5302:6200::1 and 205.251.194.98; ns-1202.awsdns-22.org points to 2600:9000:5304:b200::1 and 205.251.196.178; ns-1666.awsdns-16.co.uk points to 2600:9000:5306:8200::1 and 205.251.198.130.

Mail Servers

duoworld.com is handled by three mail servers: us2.mx1.mailhostbox.com, us2.mx2.mailhostbox.com and us2.mx3.mailhostbox.com.

duoworld.com shares some mail servers with other domains, at least partially, for instance hostultima.in, mundra.co.in, exces.ca, essmatrix.in and regardingwork.com.

these mail servers are often used together with mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names with one IP number: us2.mx1.mailhostbox.com points to 162.215.3.26; us2.mx2.mailhostbox.com points to 162.215.2.27; us2.mx3.mailhostbox.com points to 162.215.3.25.

duoworld.com - robtex.com

duoworld.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`duoworld.com`

`com`