server21.net - dns.ninja

`server21.net`

DNSSEC	⚠️ Not signed
NS	`alec.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b3b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alec.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c13b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alec.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:213b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alec.ns.cloudflare.com`
		A	108.162.193.59^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alec.ns.cloudflare.com`
		A	172.64.33.59^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alec.ns.cloudflare.com`
		A	173.245.59.59^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alec.ns.cloudflare.com`
NS	`deb.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a5c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`deb.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c05c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`deb.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:205c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`deb.ns.cloudflare.com`
		A	108.162.192.92^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`deb.ns.cloudflare.com`
		A	172.64.32.92^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`deb.ns.cloudflare.com`
		A	173.245.58.92^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`deb.ns.cloudflare.com`
SOA	`alec.ns.cloudflare.com`dns@cloudflare.com serial=2408466185

`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=1783959852

Same first word

server21.org

server21.net

server21.eu

server21.com

server21.it

Similar names

server12.ru

server12.com

server12.de

21server.com

server12.xyz

server12.nl

DNS History

13 records (2 active, 11 former)

●NSalec.ns.cloudflare.com2026-07-10 → 2026-07-13 · 3 obs

○ 2019-12-26 07:44:46
● 2026-07-10 16:21:14
● 2026-07-13 16:28:02

●NSdeb.ns.cloudflare.com2026-07-10 → 2026-07-13 · 3 obs

○ 2019-12-26 07:44:46
● 2026-07-10 16:21:14
● 2026-07-13 16:28:02

○NSns-1501.awsdns-59.org2019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-30 13:35:10
● 2019-12-26 07:44:46
○ 2026-07-10 16:21:14
○ 2026-07-13 16:28:02

○NSns-1667.awsdns-16.co.uk2019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-30 13:35:10
● 2019-12-26 07:44:46
○ 2026-07-10 16:21:14
○ 2026-07-13 16:28:02

○NSns-428.awsdns-53.com2019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-30 13:35:10
● 2019-12-26 07:44:46
○ 2026-07-10 16:21:14
○ 2026-07-13 16:28:02

○NSns-801.awsdns-36.net2019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-30 13:35:10
● 2019-12-26 07:44:46
○ 2026-07-10 16:21:14
○ 2026-07-13 16:28:02

○NSns1.systemdns.com2016-04-28 → 2016-04-28 · 3 obs

● 2016-04-28 14:37:36
○ 2017-01-30 13:35:10
○ 2026-07-13 16:28:02

○NSns2.systemdns.com2016-04-28 → 2016-04-28 · 3 obs

● 2016-04-28 14:37:36
○ 2017-01-30 13:35:10
○ 2026-07-13 16:28:02

○NSns3.systemdns.com2016-04-28 → 2016-04-28 · 3 obs

● 2016-04-28 14:37:36
○ 2017-01-30 13:35:10
○ 2026-07-13 16:28:02

○NSpdns11.domaincontrol.com2019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-30 13:35:10
● 2019-12-26 07:44:46
○ 2026-07-10 16:21:14
○ 2026-07-13 16:28:02

○NSpdns12.domaincontrol.com2019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-30 13:35:10
● 2019-12-26 07:44:46
○ 2026-07-10 16:21:14
○ 2026-07-13 16:28:02

○A184.168.221.632019-12-26 → 2019-12-26 · 4 obs

○ 2017-01-30 13:35:10
● 2019-12-26 07:44:46
○ 2026-07-10 16:21:14
○ 2026-07-13 16:28:02

○A185.17.182.2412016-04-28 → 2016-04-28 · 3 obs

● 2016-04-28 14:37:36
○ 2017-01-30 13:35:10
○ 2026-07-13 16:28:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	d.gtld-servers.net, j.gtld-servers.net, l.gtld-servers.net, h.gtld-servers.net...	-
server21.net	deb.ns.cloudflare.com, alec.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.59

NS records: deb.ns.cloudflare.com, alec.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for server21.net (unsigned zone)

⏱️ Timing

Total: 466ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`alec.ns.cloudflare.com, deb.ns.cloudflare.com`
SOA	1	`alec.ns.cloudflare.com dns.cloudflare.co`

Analysis

Name Servers

Two name servers handle the delegation for server21.net: alec.ns.cloudflare.com and deb.ns.cloudflare.com.

server21.net has the same name server delegation as a number of other domains, such as teparking.com, fr12328.com, estouf.com and two more.

There is at least partial name server overlap between server21.net and other domains — raddal.com, vuepak-live.net, haishanjushi.com and two more among them.

These name servers regularly appear alongside nolan.ns.cloudflare.com, mina.ns.cloudflare.com, maleah.ns.cloudflare.com and 3 other name servers in NS record sets.

Host names resolving to 6 IP numbers:

alec.ns.cloudflare.com resolves to 108.162.193.59, 172.64.33.59 and 173.245.59.59 among others, with 3 other IP addresses in total.

deb.ns.cloudflare.com resolves to 108.162.192.92, 172.64.32.92 and 173.245.58.92 among others, with 3 other IP addresses in total.