Exercism.io Exercism

Learn, practice and get world-class mentoring in over 50 languages. 100% free.

Exercism.io Overview

Exercism.io is a popular website that focuses on code practice and mentorship for individuals at all levels of programming experience. The site offers a range of features, including over 1,879 exercises across 38 different programming languages, insightful discussions with a dedicated team of mentors, and the ability to advance your programming skills.

One of the key features of Exercism.io is its focus on being 100% free forever, which makes it an excellent resource for aspiring programmers who don't want to pay for expensive courses or certifications. This focus on community and accessibility is reflected in the site's healthy traffic metrics, which show an average of 1476 unique users per day and 8413.2 pageviews.

In terms of website structure and design, Exercism.io is clean and easy to navigate. The site is hosted by Amazon Web Services, and offers SSL security to protect user data. The site is also family-friendly, with content that is suitable for all ages and skill levels.

However, one area where Exercism.io could improve is its PageSpeed Insights score, which currently sits at 23. This score indicates that the site could benefit from optimization and design changes to speed up load times and improve user experience.

Overall, Exercism.io is a valuable resource for anyone looking to improve their programming skills and connect with a community of mentors and peers. With its wealth of free exercises and welcoming community, Exercism.io is an excellent choice for anyone looking to level up their programming skills.

Exercism.io Rank Summary

Global Rank

76,373

Average Load Time

1.07sec

Links In Count

393

Website Value

$148,920

Audience Geography. Where are exercism.io visitors located?

Country	Visitors
United States US	45.7%
India IN	6.8%
France FR	6.6%
Australia AU	5.6%
Serbia RS	2.7%
Sweden SE	2.5%
Poland PL	2.4%
Russian Federation RU	1.3%
Canada CA	1.3%
Other	24.9%

Country	Pageviews
United States US	34.3%
France FR	25%
Australia AU	6.5%
India IN	5.4%
Malaysia MY	4.5%
Serbia RS	4.1%
Poland PL	3.6%
Sweden SE	2.1%
Canada CA	1%
Other	13.4%

Country	Rank
Serbia RS	5560
Sweden SE	17678
Australia AU	18610
Malaysia MY	24879
France FR	26797
United States US	33723
Poland PL	33801
India IN	56503
Canada CA	92825
Russian Federation RU	173643

Where do visitors go on exercism.io?

Subdomain	Pageviews
exercism.io	99.97%
other	0.03%

Subdomain	Pageviews per User
exercism.io	5.8

Subdomain	Reach
exercism.io	100%

How popular is exercism.io?

Period	Global Rank	Global Rank Delta
past 3 months	76373	-10179
past month	87988	11327
past week	104491	20438
yesterday	112808	-41937

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	54229	-4670	114	10%	5.7	-6.126%
30	61363	2697	1	-3.69%	5.8	10%
7	95940	49058	6	-56.672%	3.8	-53.911%
1	67496	-76151	99	100%	7	100%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	92341	-13967	74	20%
30	107208	16788	63	-16.13%
7	117317	6783	58	-6.087%
1	145507	-20019	5	7%

Exercism.io Website Safety

Overview

Last Updated: 09/21/2024

Overall result - exercism.io 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: 03/24/2024

exercism.io is safe.

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

Google Safe Search

Last Updated: 11/03/2016

exercism.io 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

exercism.io 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: 02/24/2021

exercism.io is safe.

McAfee assesses exercism.io 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 exercism.io for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/10/2019

exercism.io child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	exercism.io
Issuer Organization	Amazon
Issuer	Amazon
Algorithm	RSA-SHA256
Valid form	06/12/2019
Expiration	07/12/2020
Signed	Certificate is not self signed
Additional Domains	exercism.io *.exercism.io

Exercism.io Rank History

Alexa Rank shows how popular exercism.io is in comparison with other sites. The most popular site has Alexa Rank equals 1. If exercism.io 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 exercism.io and pageviews on exercism.io over the past 3 months.

Exercism.io Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 16509

ASN Title: AMAZON-02 - Amazon.com, Inc., US

Last Update: 07/19/2024

#
# 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: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509

OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-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.
#

Exercism.io Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: exercism.io
Registry Domain ID: 80a6b2a66fb34062b1bf31c8bd613d5a-DONUTS
Registrar WHOIS Server: whois.gandi.net
Registrar URL: https://www.gandi.net
Updated Date: 2024-05-04T01:46:35Z
Creation Date: 2013-06-02T23:02:05Z
Registry Expiry Date: 2025-06-02T23:02:05Z
Registrar: Gandi SAS
Registrar IANA ID: 81
Registrar Abuse Contact Email: abuse@support.gandi.net
Registrar Abuse Contact Phone: +33.170377661
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Exercism
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province:
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: GB
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: ns-1218.awsdns-24.org
Name Server: ns-1842.awsdns-38.co.uk
Name Server: ns-865.awsdns-44.net
Name Server: ns-344.awsdns-43.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-19T10:54:26Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Exercism.io HTML Check

HTML Validation Tool

Errors

Attribute “ng-app” not allowed on element “html” at this point.

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

End tag “section” seen, but there were open elements.

Unclosed element “div”.

Warnings

The “navigation” role is unnecessary for element “nav”.

The “main” role is unnecessary for element “main”.

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

The “contentinfo” role is unnecessary for element “footer”.

Exercism.io Desktop Performance

Last tested: 12/12/2019

Desktop Speed

29%

Optimize images

Leverage browser caching

Enable compression

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

Minify JavaScript

Desktop Resource Breakdown

Total Resources	144
Number of Hosts	11
Static Resources	133
JavaScript Resources	8
CSS Resources	6

Exercism.io Mobile Insights

Last tested: 11/12/2018

Mobile Usability

100%

Mobile Speed

23%

Optimize images

Leverage browser caching

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

Enable compression

Mobile Resource Breakdown

Total Resources	128
Number of Hosts	11
Static Resources	118
JavaScript Resources	4
CSS Resources	3

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Exercism.io Exercism

Learn, practice and get world-class mentoring in over 50 languages. 100% free.

Exercism.io Overview

Exercism.io Rank Summary

Exercism.io Website Safety

Exercism.io Rank History

Exercism.io Hosting Information

Exercism.io Domain Registration and Settings

Exercism.io HTML Check

Exercism.io Desktop Performance

Exercism.io Mobile Insights

Exercism.io Similar Audits

Exercism.io Common Typos