21.edu.ar Universidad Siglo 21 | Siglo 21

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21.edu.ar Quick Summary

Status

Online

Server IP address resolved: Yes

Http response code: 200

Response time: 1.78 sec.

Last Checked: 08/17/2025

21.edu.ar traffic estimate is about 2,105 unique visitors and 5,263 pageviews per day. The approximated value of 21.edu.ar is 94,900 USD. Every unique visitor makes about 2.5 pageviews on average.

Alexa Traffic Rank estimates that 21.edu.ar is ranked number 53,364 in the world, while most of its traffic comes from Argentina, where it occupies as high as 1,217 place.

21.edu.ar is registered under .AR top-level domain. Check other websites in .AR zone.

During the last check (October 11, 2024) 21.edu.ar has an expired wildcard SSL certificate issued by GoDaddy.com, Inc. (expired on August 09, 2025), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by GoDaddy.com, Inc..

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust 21.edu.ar is pretty a safe domain.

Relying on Google Mobile-Friendly test 21.edu.ar is well optimized for mobile and tablet devices, however website page loading time may be improved.

21.edu.ar General Information

21.edu.ar Audience Geography

Where are website visitors coming from?

Country Visitors
Argentina Argentina AR96.9%
Other3.1%

21.edu.ar Traffic Distribution

Where do visitors go on 21.edu.ar?

SubdomainPageviews
21.edu.ar73.49%
contenidos.21.edu.ar24.28%
identidad.21.edu.ar1.02%
mails.21.edu.ar0.77%
other0.45%

21.edu.ar Popularity

How popular is 21.edu.ar?

PeriodGlobal RankGlobal Rank Delta
past 3 months12828520895
past month119826-8091
past week104208-12947
yesterday96947-68683

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21.edu.ar Safety Information

Rankchart Summary

Safe

Updated: 08/17/2025

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Safe

Updated: 03/24/2025

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Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Safe

Updated: 10/26/2016

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SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 01/09/2019

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Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee® WebAdvisor

Safe

Updated: 02/23/2021

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McAfee assesses 21.edu.ar for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze 21.edu.ar for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Child safety is very good

Updated: 01/10/2019

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The WOT calculates reputation of the 21.edu.ar. This reputation system receives ratings from users and information from third-party sources, assesses the 21.edu.ar for safety features and confirms, whether 21.edu.ar is suitable for children.

21.edu.ar SSL Information

Information about SSL/TLS certificates

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Domain*.21.edu.ar
Issuer OrganizationGoDaddy.com, Inc.
IssuerGo Daddy Secure Certificate Authority - G2
AlgorithmRSA-SHA256
Valid form07/08/2024
Expiration08/09/2025
SignedCertificate is not self signed
Additional Domains*.21.edu.ar
21.edu.ar

21.edu.ar Server Information

21.edu.ar Server Location

Where website hosting server is located?

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21.edu.ar ASN Information

Information about IP address owner

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ASN ID: 13335

ASN Title: CLOUDFLARENET - Cloudflare, Inc., US

Updated: 04/14/2025

21.edu.ar Domain Name Information

21.edu.ar DNS Information

Domain name service records

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HostA RecordTTL

21.edu.ar Whois Information

Information about registered users or assignees of an Internet resource

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21.edu.ar HTML Validation

21.edu.ar W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:
Warnings:

21.edu.ar Desktop Performance

How Well 21.edu.ar Performs On Desktops?

Website desktop performance and usability tips

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Speed

70%

70%


Updated: 12/10/2016

21.edu.ar Mobile Performance

How Optimized Is 21.edu.ar for Mobile Devices?

Tips on speeding up mobile site performance

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Usability

99%

99%


Updated: 12/05/2017

21.edu.ar Nearest Competitors

21.edu.ar URL Typos

Most common user URL mistypes for 21.edu.ar

www.21.com
www.21.net
www.21.org
www.21.info
www.21.biz
www.21.us
www.21.mobi
www.1.edu.ar
www.21.edu.ar
www.2.edu.ar
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