Checkio.org CheckiO - coding games and programming challenges for beginner and advanced

Checkio.org Overview

CheckiO.org is a website that caters to individuals that enjoy coding games and programming challenges ranging from beginner to advanced. It has a unique user count of approximately 858 visitors per day with a total of 3088.8 pages views. The site value is estimated to be around 59,130 US dollars, indicating a high level of popularity and demand among its target audience.

The hosting server used for CheckiO.org is LINODE-AP Linode, a cloud hosting provider located in the United States. The website's top-level domain extension is .ORG, which makes it suitable for organizations and non-profit entities. To ensure secure browsing, the website uses an SSL certificate issued by Let's Encrypt, which is a free, automated, and open certificate authority.

From the content present on the website, CheckiO.org seems to be family-friendly. The website offers a variety of coding games and programming challenges that are engaging and educational for people of all ages. The challenges are designed in such a way that they help improve logical thinking, creativity, and problem-solving abilities, making it an excellent resource for students and professionals alike.

When it comes to page speed, CheckiO.org scores a 63 on Google PageSpeed Insights. Although this score is not exceptional, it is still acceptable, given the size and complexity of the website. However, if the website wishes to improve its user experience, it may need to consider optimizing its page loading speed. This could include changing the website's structure or utilizing techniques such as minification and caching.

In summary, CheckiO.org is a popular website that offers coding games and programming challenges designed for individuals of all levels of expertise. The website is family-friendly and secure, with an affordable estimate of its value. Although the website's PageSpeed Insights scores may not be outstanding, the overall functionality, educational value, and accessibility make it a great resource for individuals passionate about coding and programming.

Checkio.org Rank Summary

Global Rank

214,051

Average Load Time

1.08sec

Links In Count

406

Website Value

$59,130

Audience Geography. Where are checkio.org visitors located?

Country	Visitors
Russian Federation RU	18.3%
Other	81.7%

Country	Pageviews
Russian Federation RU	23.3%
Other	76.7%

Country	Rank
Russian Federation RU	35265

Where do visitors go on checkio.org?

Subdomain	Pageviews
checkio.org	45.91%
py.checkio.org	35.53%
js.checkio.org	18.55%

Subdomain	Pageviews per User
js.checkio.org	3
py.checkio.org	2
checkio.org	2

Subdomain	Reach
checkio.org	74.51%
py.checkio.org	50%
js.checkio.org	19.09%

How popular is checkio.org?

Period	Global Rank	Global Rank Delta
past 3 months	214051	-6927
past month	229114	62949
past week	277682	-47961
yesterday	436808	-138559

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	205680	-17890	21	20%	3.6	9%
30	241133	103697	18	-47.512%	3	-36.01%
7	231456	-75457	2	60%	4	30%
1	145725	-358907	41	700%	20	600%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	236693	-2627	28	6%
30	244777	47115	3	-18.07%
7	326669	-25773	2	20%
1	598360	21715	1	20%

Checkio.org Website Safety

Overview

Last Updated: 11/10/2024

Overall result - checkio.org is safe.

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

Last Updated: 03/23/2024

checkio.org is safe.

Norton ConnectSafe evaluates checkio.org for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 10/24/2016

checkio.org is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

checkio.org is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

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

Site Advisor

Last Updated: 02/23/2021

checkio.org is safe.

McAfee assesses checkio.org 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 checkio.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/10/2019

checkio.org child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	checkio.org
Issuer Organization	Let's Encrypt
Issuer	R3
Algorithm	RSA-SHA256
Valid form	07/16/2022
Expiration	10/14/2022
Signed	Certificate is not self signed
Additional Domains	checkio.com checkio.org escher.checkio.org www.checkio.com www.checkio.org www.escher.checkio.org

Checkio.org Rank History

Alexa Rank shows how popular checkio.org is in comparison with other sites. The most popular site has Alexa Rank equals 1. If checkio.org has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to checkio.org and pageviews on checkio.org over the past 3 months.

Checkio.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 63949

ASN Title: LINODE-AP Linode, LLC, US

Last Update: 07/20/2024

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 63488 - 64197
ASName: IANA-RSVD
ASHandle: AS63488
RegDate: 2013-06-07
Updated: 2013-06-07
Ref: https://rdap.arin.net/registry/autnum/63488

OrgName: Internet Assigned Numbers Authority
OrgId: IANA
Address: 12025 Waterfront Drive
Address: Suite 300
City: Los Angeles
StateProv: CA
PostalCode: 90292
Country: US
RegDate:
Updated: 2012-08-31
Ref: https://rdap.arin.net/registry/entity/IANA

OrgAbuseHandle: IANA-IP-ARIN
OrgAbuseName: ICANN
OrgAbusePhone: +1-310-301-5820
OrgAbuseEmail: abuse@iana.org
OrgAbuseRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN

OrgTechHandle: IANA-IP-ARIN
OrgTechName: ICANN
OrgTechPhone: +1-310-301-5820
OrgTechEmail: abuse@iana.org
OrgTechRef: https://rdap.arin.net/registry/entity/IANA-IP-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Checkio.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: checkio.org
Registry Domain ID: cd3a9a9ff6e44d0991804eea8dc35a34-LROR
Registrar WHOIS Server: http://whois.godaddy.com
Registrar URL: http://www.whois.godaddy.com
Updated Date: 2024-06-21T01:11:08Z
Creation Date: 2010-04-12T13:16:37Z
Registry Expiry Date: 2026-04-12T13:16:37Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: +1.4806242505
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientRenewProhibited https://icann.org/epp#clientRenewProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Domains By Proxy, LLC
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: Arizona
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns1.digitalocean.com
Name Server: ns2.digitalocean.com
Name Server: ns3.digitalocean.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-26T01:39:37Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
checkio.org	192.241.230.148	1800

Host	MX Record	Priority	TTL
checkio.org	alt4.aspmx.l.google.com	10	1800
checkio.org	alt1.aspmx.l.google.com	5	1800
checkio.org	aspmx.l.google.com	1	1800
checkio.org	alt2.aspmx.l.google.com	5	1800
checkio.org	alt3.aspmx.l.google.com	10	1800

Host	NS Record	TTL
checkio.org	ns1.digitalocean.com	1800
checkio.org	ns2.digitalocean.com	1800
checkio.org	ns3.digitalocean.com	1800

Host	TXT Record	TTL
checkio.org	v=spf1 include:_spf.google.com ip4:192.241.230.148 ip4:198.199.106.139 ip4:159.203.236.149 ip4:104.236.156.83 ip4:192.241.193.10 ip4:167.89.55.59 ip4:104.236.183.62 ip4:168.245.5.182 ip4:192.241.210.54 ~all	1800
checkio.org	google-site-verification=MpeZ8gVHCFI4EhQ87rl0OA8KFsuKomBg7rtSuhO-qzM	1800

ns1.digitalocean.com
TTL: 1800
Email address: hostmaster.checkio.org
Serial: 1537784340
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 1800

Checkio.org HTML Check

HTML Validation Tool

Errors

The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.

End tag “a” violates nesting rules.

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

The “itemprop” attribute was specified, but the element is not a property of any item.

Checkio.org Desktop Performance

Last tested: 12/12/2016

Desktop Speed

78%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Enable compression

Minify JavaScript

Minify CSS

Optimize images

Desktop Resource Breakdown

Total Resources	43
Number of Hosts	17
Static Resources	27
JavaScript Resources	14
CSS Resources	3

Checkio.org Mobile Insights

Last tested: 12/12/2016

Mobile Usability

98%

Size tap targets appropriately

Mobile Speed

63%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Enable compression

Minify JavaScript

Minify CSS

Optimize images

Mobile Resource Breakdown

Total Resources	45
Number of Hosts	17
Static Resources	27
JavaScript Resources	14
CSS Resources	3

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Checkio.org CheckiO - coding games and programming challenges for beginner and advanced

Checkio.org Overview

Checkio.org Rank Summary

Checkio.org Website Safety

Checkio.org Rank History

Checkio.org Hosting Information

Checkio.org Domain Registration and Settings

Checkio.org HTML Check

Checkio.org Desktop Performance

Checkio.org Mobile Insights

Checkio.org Similar Audits

Checkio.org Common Typos