DNSWHOIS.INFO - 21.edu.ar

Search for IP or hostnames:

21.edu.ar checked at 2025-09-05T22:09:52.195Z 233ms 139/139/139 100% R:17

`21.edu.ar`

NS	`cleo.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b59 ^{🇺🇸 Cloudflare}
			PTR	`cleo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c159 ^{🇨🇷 Cloudflare}
			PTR	`cleo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2159 ^{🇺🇸 Cloudflare}
			PTR	`cleo.ns.cloudflare.com`
		A	108.162.193.89^{🇺🇸 Cloudflare}
			PTR	`cleo.ns.cloudflare.com`
		A	172.64.33.89^{🇺🇸 Cloudflare}
			PTR	`cleo.ns.cloudflare.com`
		A	173.245.59.89^{🇺🇸 Cloudflare}
			PTR	`cleo.ns.cloudflare.com`
NS	`rita.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a8c ^{🇺🇸 Cloudflare}
			PTR	`rita.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c08c ^{🇨🇷 Cloudflare}
			PTR	`rita.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:208c ^{🇺🇸 Cloudflare}
			PTR	`rita.ns.cloudflare.com`
		A	108.162.192.140^{🇺🇸 Cloudflare}
			PTR	`rita.ns.cloudflare.com`
		A	172.64.32.140^{🇺🇸 Cloudflare}
			PTR	`rita.ns.cloudflare.com`
		A	173.245.58.140^{🇺🇸 Cloudflare}
			PTR	`rita.ns.cloudflare.com`
MX	`21-edu-ar.mail.protection.outlook.com`
		A	2a01:111:f403:c902::1 ^{🇺🇸 Microsoft}
			PTR	`mail-sj2pr05cu00401.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::6 ^{🇺🇸 Microsoft}
			PTR	`mail-ch5pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:f807:: ^{🇺🇸 Microsoft}
			PTR	`mail-co1pr05cu00200.inbound.protection.outlook.com`
		A	2a01:111:f403:f908:: ^{🇺🇸 Microsoft}
			PTR	`mail-bn1pr21cu00100.inbound.protection.outlook.com`
		A	52.101.8.36^{🇺🇸 Microsoft}
		A	52.101.40.0^{🇺🇸 Microsoft}
			PTR	`mail-cy5pr03cu00300.inbound.protection.outlook.com`
		A	52.101.40.2^{🇺🇸 Microsoft}
			PTR	`mail-cy1pr05cu00402.inbound.protection.outlook.com`
		A	52.101.41.183^{🇺🇸 Microsoft}
			PTR	`mail-byapr04cu00307.inbound.protection.outlook.com`
A	104.20.36.222^Cloudflare
A	172.66.147.153^{🇺🇸 Cloudflare}

`edu.ar`

	NS	`ns1.uba.ar`
	NS	`ns2.switch.ch`
	NS	`a.riu.edu.ar`
	NS	`b.riu.edu.ar`
	NS	`noc.uncu.edu.ar`
	NS	`unlp.unlp.edu.ar`

rank #114210 globally
rank #121 in the tld

Up
`contenidos.21.edu.ar`
`www.21.edu.ar`
`teleclases.21.edu.ar`
`mails.21.edu.ar`
`identidad.21.edu.ar`
`e-pagos.21.edu.ar`

Starts with same word
`21.ph`
`21.is`
`21.be`
`21.com.ua`
`21.pe`
`21.edu.ar`
`21.gg`
`21.capital`
`21.dk`
`21.email`
`21.sk`
`21.immo`
`21.cz`
`21.style`
`21.nl`
`21.agency`
`21.co`
`21.biz`
`21.lv`
`21.ru`
`21.co.za`
`21.finance`
`21.ax`
`21.nu`
`21.business`
`21.casino`
`21.pl`
`21.ee`
`21.tv`
`21.partners`
`21.to`
`21.ie`
`21.photos`
`21.cc`
`21.fr`
`21.by`
`21.com.es`
`21.life`
`21.run`
`21.net`
`21.la`
`21.ag`
`21.diamonds`
`21.cn`
`21.de`
`21.training`
`21.ca`
`21.construction`
`21.org`
`21.co.uk`
`21.vc`
`21.am`
`21.rs`
`21.com`
`21.bet`
`21.center`
`21.kz`
`21.web.app`
`21.su`
`21.network`
`21.si`
`21.gen.tr`

Starts similarily
`12.la`
`21.bet`
`12.at`
`21.center`
`21.kz`
`12.ws`
`12.s3.amazonaws.com`
`21.web.app`
`21.su`
`21.network`
`21.si`
`21.gen.tr`
`21.ph`
`12.lv`
`21.is`
`21.be`
`21.com.ua`
`12.cl`
`12.ph`
`12.ma`
`12.rs`
`21.pe`
`21.edu.ar`
`21.gg`
`21.capital`
`12.de`
`12.in-addr.arpa`
`21.dk`
`12.ag`
`21.email`
`12.kz`
`12.ie`
`12.com.ua`
`21.sk`
`12.cz`
`21.immo`
`12.eu`
`21.cz`
`12.uk`
`12.life`
`21.style`
`12.city`
`12.dk`
`21.nl`
`21.agency`
`12.org.ru`
`12.nu`
`21.co`
`21.biz`
`21.lv`
`21.ru`
`21.co.za`
`12.ai`
`21.finance`
`12.hk`
`21.ax`
`12.amsterdam`
`12.fr`
`21.nu`
`21.business`
`12.vc`
`21.casino`
`21.pl`
`21.ee`
`12.am`
`12.agency`
`12.digital`
`12.ac.cn`
`12.lt`
`21.tv`
`12.si`
`21.partners`
`21.to`
`21.ie`
`21.photos`
`21.cc`
`12.be`
`12.fi`
`12.cc`
`12.is`
`21.fr`
`12.chat`
`21.by`
`12.solutions`
`12.dyndns.tv`
`21.com.es`
`21.life`
`12.cm`
`21.run`
`12.world`
`12.by`
`21.net`
`12.org.ua`
`12.works`
`12.uz`
`21.la`
`21.ag`
`21.diamonds`
`21.cn`
`21.de`

AI analysis

21.edu.ar serves as the parent host for contenidos.21.edu.ar, www.21.edu.ar, teleclases.21.edu.ar, mails.21.edu.ar, identidad.21.edu.ar, among others.

21.edu.ar points to two IP numbers: 104.20.36.222 and 172.66.147.153.

IP numbers are shared between 21.edu.ar and other host names like contenidos.21.edu.ar, www.21.edu.ar, mails.21.edu.ar, identidad.21.edu.ar, and 21.edu.ar.cdn.cloudflare.net.

Two name servers, cleo.ns.cloudflare.com and rita.ns.cloudflare.com, are delegated to 21.edu.ar.

The name server setup of 21.edu.ar is shared with other domains such as formarchitect.co.th, jarredbunch.com, omni-conn.com, slaveikov.com, and krisalcordo.com.

The domain 21.edu.ar shares its name servers, at least partially, with other domains such as ns1.megacloud.biz, gamefiar.com, lgadget.ru, mityubezpieczeniowe.pl, and nightpastures.com.

cleo.ns.cloudflare.com and rita.ns.cloudflare.com both point to six IP numbers each: 2606:4700:58::adf5:3b59, 2803:f800:50::6ca2:c159, 2a06:98c1:50::ac40:2159, 108.162.193.89, 172.64.33.89, 173.245.59.89 and 2606:4700:50::adf5:3a8c, 2803:f800:50::6ca2:c08c, 2a06:98c1:50::ac40:208c, 108.162.192.140, 172.64.32.140, 173.245.58.140 respectively.

The mail server, 21-edu-ar.mail.protection.outlook.com, manages 21.edu.ar.

Like other domains such as 21.edu.ar.cdn.cloudflare.net, 21.edu.ar also has the same mail server setup.

Eight IP numbers, 2a01:111:f403:c902::1, 2a01:111:f403:c946::6, 2a01:111:f403:f807::, 2a01:111:f403:f908::, 52.101.8.36, 52.101.40.0, 52.101.40.2, and 52.101.41.183, are pointed to by 21-edu-ar.mail.protection.outlook.com.

dbq