`21n.net`

DNSSEC	⚠️ Not signed
NS	`need-renew1.olnic.com` ⚠️ Not in zone NS records
		A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
			PTR	`a904c694c05102f30.awsglobalaccelerator.com`
		A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
			PTR	`a904c694c05102f30.awsglobalaccelerator.com`
NS	`need-renew2.olnic.com` ⚠️ Not in zone NS records
		A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
			PTR	`a904c694c05102f30.awsglobalaccelerator.com`
		A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
			PTR	`a904c694c05102f30.awsglobalaccelerator.com`

`net`

	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=1774664397

Same first word

21n.click

21n.net

21n.us

21n.at

21n.com.cn

21n.cc

21n.org

21n.com

21n.ru

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12n.cn

12n.co.za

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n21.cc

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n21.net

n21.ch

1n2.ch

2n1.com

12n.us

n21.de

12n.net

n12.uz

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12n.org

2n1.org

2n1.fr

n12.be

n21.be

n12.mx

1n2.ir

n21.biz

n12.ca

2n1.top

n21.it

n21.me

n12.it

12n.nl

1n2.biz

n12.org

n12.biz

n12.me

n12.ai

n12.com.au

n21.eu

n12.de

n12.net

n21.in

2n1.ru

DNS History

2 records (2 active, 0 former)

●NSneed-renew1.olnic.com2026-03-26 → 2026-03-28 · 2 obs

● 2026-03-26 03:11:56
● 2026-03-28 02:27:22

●NSneed-renew2.olnic.com2026-03-26 → 2026-03-28 · 2 obs

● 2026-03-26 03:11:56
● 2026-03-28 02:27:22

🔍 DNS Trace

Analysis

Name Servers

21n.net is delegated to two name servers: need-renew1.olnic.com and need-renew2.olnic.com.

21n.net shares the same name server setup as other domains, for instance chuanghua.com.

21n.net shares name servers with other domains at least partially, for instance sitetoolbench.net and bagan.net.

These name servers are commonly used together with ns1.eboz.com, ns2.eboz.com, ns1.dns-diy.net and ns2.dns-diy.net.

Host names with two IP numbers:

need-renew1.olnic.com points to: 13.248.169.48 and 76.223.54.146.

need-renew2.olnic.com points to: 13.248.169.48 and 76.223.54.146.

Host names that point to 13.248.169.48: need-renew1.olnic.com and need-renew2.olnic.com.

Host names that point to 76.223.54.146: need-renew1.olnic.com and need-renew2.olnic.com.

21n.net - robtex.com

21n.net

net