duoby.com - dns.ninja

`duoby.com`

DNSSEC	⚠️ Not signed
A	54.237.57.21^{🇺🇸 Amazon54.237.0.0/16 EC2 IAD prefix}
		PTR	`ns1.namepros-dns.com`
NS	`ns1.namepros-dns.com` ⭐
		A	54.237.57.21^{🇺🇸 Amazon54.237.0.0/16 EC2 IAD prefix}
			PTR	`ns1.namepros-dns.com`
NS	`ns2.f5f895r3r6zmmpsm2h92.ns.namepros-dns.is`
		A	3.233.30.191^{🇺🇸 Amazon3.224.0.0/12 EC2 IAD prefix}
			PTR	`ns2.namepros-dns.com`
TXT	`v=spf1 -all`
SOA	`ns1.namepros-dns.com`dns@namepros.com serial=14867337

`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=1785628427

WOT: SAFE (60/100)

Same first word

duoby.com

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DNS History

18 records (3 active, 15 former)

○NSdns10.hichina.com2015-07-26 → 2015-11-29 · 4 obs

● 2015-07-26 04:50:08
● 2015-11-29 10:22:22
○ 2016-08-08 17:54:48
○ 2026-08-02 00:23:06

○NSdns9.hichina.com2015-07-26 → 2015-11-29 · 4 obs

● 2015-07-26 04:50:08
● 2015-11-29 10:22:22
○ 2016-08-08 17:54:48
○ 2026-08-02 00:23:06

○NSlaunch1.spaceship.net2026-02-21 → 2026-05-02 · 5 obs

○ 2017-04-09 17:50:52
● 2026-02-21 02:02:08
● 2026-05-02 02:51:54
○ 2026-07-18 07:39:00
○ 2026-08-02 00:23:06

○NSlaunch2.spaceship.net2026-02-21 → 2026-05-02 · 5 obs

○ 2017-04-09 17:50:52
● 2026-02-21 02:02:08
● 2026-05-02 02:51:54
○ 2026-07-18 07:39:00
○ 2026-08-02 00:23:06

○NSlocalhost2016-08-08 → 2017-04-09 · 5 obs

○ 2015-11-29 10:22:22
● 2016-08-08 17:54:48
● 2017-04-09 17:50:52
○ 2026-02-21 02:02:08
○ 2026-08-02 00:23:06

○NSns1.mytrafficmanagement.com2016-08-08 → 2017-04-09 · 5 obs

○ 2015-11-29 10:22:22
● 2016-08-08 17:54:48
● 2017-04-09 17:50:52
○ 2026-02-21 02:02:08
○ 2026-08-02 00:23:06

●NSns1.namepros-dns.com2026-07-18 → 2026-08-02 · 3 obs

○ 2026-05-02 02:51:54
● 2026-07-18 07:39:00
● 2026-08-02 00:23:06

●NSns2.f5f895r3r6zmmpsm2h92.ns.namepros-dns.is2026-07-18 → 2026-08-02 · 3 obs

○ 2026-05-02 02:51:54
● 2026-07-18 07:39:00
● 2026-08-02 00:23:06

○NSns2.mytrafficmanagement.com2016-08-08 → 2017-04-09 · 5 obs

○ 2015-11-29 10:22:22
● 2016-08-08 17:54:48
● 2017-04-09 17:50:52
○ 2026-02-21 02:02:08
○ 2026-08-02 00:23:06

○MXmail.duoby.com2015-07-26 → 2015-11-29 · 4 obs

● 2015-07-26 04:50:08
● 2015-11-29 10:22:22
○ 2016-08-08 17:54:48
○ 2026-08-02 00:23:06

○MXmail.pickelhost.com2017-04-09 → 2017-04-09 · 4 obs

○ 2016-08-08 17:54:48
● 2017-04-09 17:50:52
○ 2026-02-21 02:02:08
○ 2026-08-02 00:23:06

○A192.230.66.932016-08-08 → 2016-08-08 · 4 obs

○ 2015-11-29 10:22:22
● 2016-08-08 17:54:48
○ 2017-04-09 17:50:52
○ 2026-08-02 00:23:06

○A192.230.74.932016-08-08 → 2016-08-08 · 4 obs

○ 2015-11-29 10:22:22
● 2016-08-08 17:54:48
○ 2017-04-09 17:50:52
○ 2026-08-02 00:23:06

○A44.232.173.2492026-02-21 → 2026-05-02 · 5 obs

○ 2017-04-09 17:50:52
● 2026-02-21 02:02:08
● 2026-05-02 02:51:54
○ 2026-07-18 07:39:00
○ 2026-08-02 00:23:06

○A45.33.9.2342017-04-09 → 2017-04-09 · 4 obs

○ 2016-08-08 17:54:48
● 2017-04-09 17:50:52
○ 2026-02-21 02:02:08
○ 2026-08-02 00:23:06

○A52.40.42.1132026-02-21 → 2026-05-02 · 5 obs

○ 2017-04-09 17:50:52
● 2026-02-21 02:02:08
● 2026-05-02 02:51:54
○ 2026-07-18 07:39:00
○ 2026-08-02 00:23:06

●A54.237.57.212026-07-18 → 2026-08-02 · 3 obs

○ 2026-05-02 02:51:54
● 2026-07-18 07:39:00
● 2026-08-02 00:23:06

○A58.68.146.302015-07-26 → 2015-11-29 · 4 obs

● 2015-07-26 04:50:08
● 2015-11-29 10:22:22
○ 2016-08-08 17:54:48
○ 2026-08-02 00:23:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
duoby.com	ns1.namepros-dns.com, ns2.f5f895r3r6zmmpsm2h92.ns.namepros-dns.is	1 record

✅ Authoritative Response

Server:54.237.57.21

NS records: ns1.namepros-dns.com, ns2.f5f895r3r6zmmpsm2h92.ns.namepros-dns.is

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duoby.com (unsigned zone)

⏱️ Timing

Total: 302ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`54.237.57.21`
NS	2	`ns1.namepros-dns.com, ns2.f5f895r3r6zmmpsm2h92.ns.namepros-dns`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.namepros-dns.com dns.namepros.com`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns1.namepros-dns.com)

Analysis

IP Addresses

duoby.com resolves to just one IP address, 54.237.57.21.

Two other host names, along with joomb.com, bambus.co and yeslearning.com, also share IP numbers with duoby.com.

Name Servers

duoby.com has two authoritative name servers — ns1.namepros-dns.com and ns2.f5f895r3r6zmmpsm2h92.ns.namepros-dns.is.

duoby.com shares its NS records with other domains, for example lera.co, busen.co, homegarden.co and two others.

duoby.com shares at least some of its name servers with other domains, including vivatel.com, kelam.com, bsdl.com and two others.

These name servers are frequently seen alongside ns2.abdulbasit.ns.namepros-dns.is, ns2.brokerage.ns.namepros-dns.is, zss5p6352r53spzb3phzhs8pdh6583j8.ns.namepros-dns.is and 7 other name servers.

ns1.namepros-dns.com and ns2.f5f895r3r6zmmpsm2h92.ns.namepros-dns.is each resolve to one IP number: ns1.namepros-dns.com points to 54.237.57.21 and ns2.f5f895r3r6zmmpsm2h92.ns.namepros-dns.is points to 3.233.30.191.