`knowledgeworldbd.com`

DNSSEC	⚠️ Not signed
A	216.239.32.21^{🇺🇸 Google216.239.32.0/24}
		PTR	`any-in-2015.1e100.net`
A	216.239.34.21^{🇺🇸 Google216.239.34.0/24}
A	216.239.36.21^{🇺🇸 Google216.239.36.0/24}
A	216.239.38.21^{🇺🇸 Google216.239.38.0/24}
NS	`dns1.registrar-servers.com` ⭐
		A	2610:a1:1024::200^{🇺🇸 MAINT-ID-120082610:a1:1024::/48 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
		A	156.154.132.200^{🇺🇸 MAINT-ID-12008156.154.132.0/24 Neustar}
			PTR	`dns1.namecheaphosting.com`
			PTR	`dns1.registrar-servers.com`
NS	`dns2.registrar-servers.com`
		A	2610:a1:1025::200^{🇺🇸 MAINT-ID-120082610:a1:1025::/48 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
		A	156.154.133.200^{🇺🇸 MAINT-ID-12008156.154.133.0/24 Neustar}
			PTR	`dns2.namecheaphosting.com`
			PTR	`dns2.registrar-servers.com`
SOA	`dns1.registrar-servers.com`hostmaster@registrar-servers.com serial=1758105912

`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=1778946381

Subdomains

www.knowledgeworldbd.com

Same first word

knowledgeworldbd.com

DNS History

18 records (6 active, 12 former)

●NSdns1.registrar-servers.com2026-04-24 → 2026-05-16 · 3 obs

○ 2017-07-01 18:16:10
● 2026-04-24 04:01:30
● 2026-05-16 15:58:34

●NSdns2.registrar-servers.com2026-04-24 → 2026-05-16 · 3 obs

○ 2017-07-01 18:16:10
● 2026-04-24 04:01:30
● 2026-05-16 15:58:34

○NSns1.dnsnuts.com2015-08-08 → 2016-09-13 · 4 obs

● 2015-08-08 05:22:00
● 2016-09-13 11:41:50
○ 2017-07-01 18:16:10
○ 2026-05-16 15:58:34

○NSns1.globalwebshost.com2017-07-01 → 2017-07-01 · 4 obs

○ 2016-09-13 11:41:50
● 2017-07-01 18:16:10
○ 2026-04-24 04:01:30
○ 2026-05-16 15:58:34

○NSns2.dnsnuts.com2015-08-08 → 2016-09-13 · 4 obs

● 2015-08-08 05:22:00
● 2016-09-13 11:41:50
○ 2017-07-01 18:16:10
○ 2026-05-16 15:58:34

○NSns2.globalwebshost.com2017-07-01 → 2017-07-01 · 4 obs

○ 2016-09-13 11:41:50
● 2017-07-01 18:16:10
○ 2026-04-24 04:01:30
○ 2026-05-16 15:58:34

○MXsmx1.web-hosting.com2017-07-01 → 2017-07-01 · 3 obs

● 2017-07-01 18:16:10
○ 2026-04-24 04:01:30
○ 2026-05-16 15:58:34

○MXsmx2.web-hosting.com2017-07-01 → 2017-07-01 · 3 obs

● 2017-07-01 18:16:10
○ 2026-04-24 04:01:30
○ 2026-05-16 15:58:34

○MXsmx3.web-hosting.com2017-07-01 → 2017-07-01 · 3 obs

● 2017-07-01 18:16:10
○ 2026-04-24 04:01:30
○ 2026-05-16 15:58:34

○A104.219.248.762017-07-01 → 2017-07-01 · 4 obs

○ 2016-09-13 11:41:50
● 2017-07-01 18:16:10
○ 2026-04-24 04:01:30
○ 2026-05-16 15:58:34

○A167.114.156.2142015-08-08 → 2015-08-08 · 3 obs

● 2015-08-08 05:22:00
○ 2015-12-12 06:55:06
○ 2026-05-16 15:58:34

●A216.239.32.212026-04-24 → 2026-05-16 · 3 obs

○ 2017-07-01 18:16:10
● 2026-04-24 04:01:30
● 2026-05-16 15:58:34

●A216.239.34.212026-04-24 → 2026-05-16 · 3 obs

○ 2017-07-01 18:16:10
● 2026-04-24 04:01:30
● 2026-05-16 15:58:34

●A216.239.36.212026-04-24 → 2026-05-16 · 3 obs

○ 2017-07-01 18:16:10
● 2026-04-24 04:01:30
● 2026-05-16 15:58:34

●A216.239.38.212026-04-24 → 2026-05-16 · 3 obs

○ 2017-07-01 18:16:10
● 2026-04-24 04:01:30
● 2026-05-16 15:58:34

○A5.39.99.492015-12-12 → 2015-12-12 · 4 obs

○ 2015-08-08 05:22:00
● 2015-12-12 06:55:06
○ 2016-03-25 07:18:10
○ 2026-05-16 15:58:34

○A5.39.99.502016-09-13 → 2016-09-13 · 4 obs

○ 2016-03-25 07:18:10
● 2016-09-13 11:41:50
○ 2017-07-01 18:16:10
○ 2026-05-16 15:58:34

○A5.39.99.522015-08-08 → 2016-03-25 · 4 obs

● 2015-08-08 05:22:00
● 2016-03-25 07:18:10
○ 2016-09-13 11:41:50
○ 2026-05-16 15:58:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
knowledgeworldbd.com	dns1.registrar-servers.com, dns2.registrar-servers.com	4 records

✅ Authoritative Response

Server:156.154.133.200

NS records: dns1.registrar-servers.com, dns2.registrar-servers.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for knowledgeworldbd.com (unsigned zone)

⏱️ Timing

Total: 354ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`216.239.38.21, 216.239.34.21...`
NS	2	`dns1.registrar-servers.com, dns2.registrar-servers.com`
SOA	1	`dns1.registrar-servers.com hostmaster.re`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (dns1.registrar-servers.com, dns1.registrar-servers.com, dns2.registrar-servers.com...)

Analysis

Hierarchy

knowledgeworldbd.com is a parent of www.knowledgeworldbd.com.

IP Addresses

knowledgeworldbd.com resolves to four IPs: 216.239.32.21, 216.239.34.21, 216.239.36.21 and 216.239.38.21.

Other host names such as kymarte.com, pgconnections.com, espacio-vacio.com, hazserv.com and toonline.net share IP numbers with knowledgeworldbd.com.

Name Servers

knowledgeworldbd.com is delegated to two name servers: dns1.registrar-servers.com and dns2.registrar-servers.com.

knowledgeworldbd.com uses the same name server setup as other domains, including casino-x.space, cwebbonline.com, nebuloussports.com, irods.net and lottobus.com.

At least part of the name servers for knowledgeworldbd.com are shared with other domains, for instance swampscottharbor.com, tiramelafoto.com, earlyarthritis.org, naaap.net and oimru.com.

These name servers are often used together with dns3.registrar-servers.com, dns4.registrar-servers.com and dns5.registrar-servers.com.

Host names with two IP numbers:

dns1.registrar-servers.com points to 2610:a1:1024::200 and 156.154.132.200.

dns2.registrar-servers.com points to 2610:a1:1025::200 and 156.154.133.200.

knowledgeworldbd.com - robtex.com