Codewars.com Codewars - Achieve mastery through coding practice and developer mentorship

A coding practice website for all programming levels – Join a community of over 3 million developers and improve your coding skills in over 55 program...

Codewars.com Overview

Codewars.com is a popular website that caters to programmers who seek to enhance their coding skills through challenges and katas. At the core of the site is a goal to achieve code mastery through various exercises that can help programmers reach their highest potential. In this structural website overview, we will take a closer look at its features, design, and value.

First and foremost, the name of the website, codewars.com, is self-explanatory. The site is geared towards programmers who are looking to train and challenge themselves with a series of advanced programming exercises. The website's primary purpose is to provide users with an online platform where they can learn and enhance their coding skills while having fun.

The title of the website reflects its core value proposition: "Train with Programming Challenges/Kata." The website offers users access to various challenges and katas designed to improve their programming skills and help them achieve code mastery.

The website's description sums up the intent of the site, which is to deliver a unique interactive experience that enables users to train with programming challenges and katas in the dojo. The ultimate goal is to help coders achieve code mastery and reach their highest potential.

Codewars.com is a highly trafficked website with 9546 unique users per day and 26728.8 pageviews, which is impressive for a technical platform of this type. The site's estimated value is 464280 US dollars, indicating its popularity and commercial viability.

The website is hosted by Cloudflare, Inc., a reputable hosting provider based in the United States, which ensures that the website's security and data protection are top-notch. The top-level domain of the website is .COM, which is a standard extension used for commercial and business purposes worldwide.

The website has an SSL certificate issued by Cloudflare, Inc. This certificate provides users with additional security by encrypting the data transmitted over the connection between the server and the user's browser.

When it comes to family-friendliness, Codewars.com is generally considered suitable for all ages. However, the site's content and purpose target a somewhat niche audience, which means that some of the exercises and challenges may not be appropriate for children.

PageSpeed Insights scores indicate that the site's speed is decent, with a score of 57. While this doesn't put the website among the fastest loading sites, it's still considered satisfactory for a site that doesn't depend on speed for its primary functionality.

To summarize, Codewars.com is

Codewars.com Rank Summary

Global Rank

25,298

Average Load Time

2.72sec

Links In Count

467

Website Value

$464,744

Audience Geography. Where are codewars.com visitors located?

Country	Visitors
United States US	32.8%
China CN	14.3%
India IN	5.7%
France FR	4.1%
Russian Federation RU	3.3%
Nigeria NG	3.1%
United Kingdom GB	2.9%
Spain ES	2.5%
Australia AU	2.5%
Other	28.9%

Country	Pageviews
United States US	35.3%
China CN	13.3%
India IN	4.8%
France FR	3.9%
Australia AU	3.6%
Turkey TR	3.3%
Canada CA	3%
Nigeria NG	2.9%
Russian Federation RU	2.9%
Other	27%

Country	Rank
Yemen YE	3253
Nigeria NG	4136
New Zealand NZ	5757
Belarus BY	6193
Norway NO	7358
Ireland IE	9876
Australia AU	10097
Romania RO	10122
United States US	11891
Poland PL	13780
Israel IL	14082
Canada CA	14812

Where do visitors go on codewars.com?

Subdomain	Pageviews
codewars.com	98.6%
status.codewars.com	0.24%
other	1.15%

Subdomain	Pageviews per User
codewars.com	2.8
status.codewars.com	1

Subdomain	Reach
codewars.com	99.97%
status.codewars.com	0.7%

How popular is codewars.com?

Period	Global Rank	Global Rank Delta
past 3 months	25298	410
past month	25887	-448
past week	25351	-1459
yesterday	34944	3571

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	28767	134	238	-2.18%	2.8	4%
30	28933	-2466	237	9%	2.9	10%
7	27934	-3241	25	10%	3	9%
1	54040	11085	13	-26.76%	1.8	-21.88%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	25625	752	314	-6.396%
30	26487	264	30	-0.576%
7	26191	-883	31	5%
1	31300	1137	25	-6.218%

Codewars.com Website Safety

Overview

Last Updated: 02/16/2025

Overall result - codewars.com 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: 03/21/2024

codewars.com is safe.

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

Google Safe Search

Last Updated: 10/14/2016

codewars.com 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

codewars.com 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: 02/22/2021

codewars.com is safe.

McAfee assesses codewars.com 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 codewars.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

codewars.com child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	codewars.com
Issuer Organization	Let's Encrypt
Issuer	E5
Algorithm	ecdsa-with-SHA384
Valid form	09/26/2024
Expiration	12/25/2024
Signed	Certificate is not self signed
Additional Domains	*.codewars.com codewars.com

Codewars.com Rank History

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

Codewars.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 13335

ASN Title: CLOUDFLARENET - Cloudflare, Inc., US

Last Update: 07/18/2024

#
# 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: 13335
ASName: CLOUDFLARENET
ASHandle: AS13335
RegDate: 2010-07-14
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/autnum/13335

OrgName: Cloudflare, Inc.
OrgId: CLOUD14
Address: 101 Townsend Street
City: San Francisco
StateProv: CA
PostalCode: 94107
Country: US
RegDate: 2010-07-09
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/entity/CLOUD14

OrgTechHandle: ADMIN2521-ARIN
OrgTechName: Admin
OrgTechPhone: +1-650-319-8930
OrgTechEmail: rir@cloudflare.com
OrgTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

OrgAbuseHandle: ABUSE2916-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-650-319-8930
OrgAbuseEmail: abuse@cloudflare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

OrgNOCHandle: NOC11962-ARIN
OrgNOCName: NOC
OrgNOCPhone: +1-650-319-8930
OrgNOCEmail: noc@cloudflare.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RNOCHandle: NOC11962-ARIN
RNOCName: NOC
RNOCPhone: +1-650-319-8930
RNOCEmail: noc@cloudflare.com
RNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RTechHandle: ADMIN2521-ARIN
RTechName: Admin
RTechPhone: +1-650-319-8930
RTechEmail: rir@cloudflare.com
RTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

RAbuseHandle: ABUSE2916-ARIN
RAbuseName: Abuse
RAbusePhone: +1-650-319-8930
RAbuseEmail: abuse@cloudflare.com
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-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.
#

Codewars.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: CODEWARS.COM
Registry Domain ID: 123721416_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: http://www.godaddy.com
Updated Date: 2023-11-03T04:23:03Z
Creation Date: 2004-06-29T18:06:33Z
Registry Expiry Date: 2025-06-29T18:06:33Z
Registrar: GoDaddy.com, LLC
Registrar IANA ID: 146
Registrar Abuse Contact Email: abuse@godaddy.com
Registrar Abuse Contact Phone: 480-624-2505
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
Name Server: ALLA.NS.CLOUDFLARE.COM
Name Server: JAY.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-13T07:43:04Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
codewars.com	172.66.43.71	300
codewars.com	172.66.40.185	300

Host	MX Record	Priority	TTL
codewars.com	aspmx.l.google.com	1	300
codewars.com	aspmx2.googlemail.com	10	300
codewars.com	aspmx3.googlemail.com	10	300
codewars.com	alt1.aspmx.l.google.com	5	300
codewars.com	alt2.aspmx.l.google.com	5	300

Host	NS Record	TTL
codewars.com	alla.ns.cloudflare.com	86400
codewars.com	jay.ns.cloudflare.com	86400

Host	TXT Record	TTL
codewars.com	Sendinblue-code:43031cb74265bb1cc979e43aa33341b9	300
codewars.com	detectify-verification=f02777169664fd55c980859b4759dd20	300
codewars.com	google-site-verification=aRDT9_GRhY0nxFlGkyDRwQiAVeE-4AYAmw6iNMeE9EQ	300
codewars.com	google-site-verification=apBZnyvMWEyK0jCMm8jL9NKrcRBRZ7i2UVkuwB0M5hs	300
codewars.com	google-site-verification=mJLCn8kdW0RIckA2u8dTpED3UaT9yIQVu8PpzVGvNVo	300
codewars.com	v=spf1 a mx include:_spf.google.com include:sparkpostmail.com include:spf.sendinblue.com include:mail.zendesk.com -all	300

alla.ns.cloudflare.com
TTL: 1800
Email address: dns.cloudflare.com
Serial: 2354795613
Refresh: 10000
Retry: 2400
Expire: 604800
Minimum: 1800

Codewars.com HTML Check

HTML Validation Tool

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

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

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

Empty heading.

This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.

Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).

Errors

Element “view” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

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

Bad value “popover” for attribute “rel” on element “a”: The string “popover” is not a registered keyword.

Bad value “template” for attribute “type” on element “script”: Subtype missing.

Codewars.com Desktop Performance

Last tested: 10/11/2016

Desktop Speed

85%

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

Optimize images

Leverage browser caching

Reduce server response time

Desktop Resource Breakdown

Total Resources	45
Number of Hosts	16
Static Resources	29
JavaScript Resources	16
CSS Resources	2

Codewars.com Mobile Insights

Last tested: 01/06/2020

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

57%

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

Avoid landing page redirects

Optimize images

Leverage browser caching

Reduce server response time

Mobile Resource Breakdown

Total Resources	36
Number of Hosts	13
Static Resources	27
JavaScript Resources	10
CSS Resources	2

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Codewars.com Codewars - Achieve mastery through coding practice and developer mentorship

A coding practice website for all programming levels – Join a community of over 3 million developers and improve your coding skills in over 55 program...

Codewars.com Overview

Codewars.com Rank Summary

Codewars.com Website Safety

Codewars.com Rank History

Codewars.com Hosting Information

Codewars.com Domain Registration and Settings

Codewars.com HTML Check

Codewars.com Desktop Performance

Codewars.com Mobile Insights

Codewars.com Similar Audits

Codewars.com Common Typos