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codewars.com Paid content

Categories: Development

Tags: CommunityCodecodewarscode katakatacode gymCodingcode practiceRubyjavascript
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A coding practice website for all programming levels – Join a community of over 3 million developers and improve your coding skills in over 55 programming languages!

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Updated: 2026-09-03 15:27 Language: English (default) Access: Normal

Profile views 18 Outbound visits 7
Codewars Full homepage screenshot

Website Overview

An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality. Several search or sharing settings need attention. Together they may make snippets, preview images or preferred URLs less consistent across platforms.

Domain and Registration

Registered in 2004, this domain has about 22 years of history. That suggests continuity, although ownership and purpose may have changed. Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The registrar is GoDaddy.com, LLC, a widely used domain service provider. The domain uses the common .com extension, which is not an independent safety signal.

DNS and Email

Nameservers are provided by Cloudflare, indicating managed DNS hosting. MX records point to the Google Workspace email service. No CNAME was found; the observed records resolve directly to addresses. SPF and DMARC are configured. DKIM status is unknown. TXT records include verification markers for Google. Such markers may also remain after a service stops being used.

TLS and Certificates

The public key uses EC with 256 bits. The server supplied a complete certificate chain. No organization name is present in the certificate; the available fields are consistent with domain validation. The certificate was issued by Let's Encrypt, commonly associated with automated certificate services. The certificate's total validity is about 89 days, consistent with a short renewal cycle.

HTTP and Browser Security

The response lacks these common security headers: HSTS, Permissions-Policy. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The cf-ray, via response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers. The Server header identifies cloudflare without an exact version.

Technology Stack Analysis

The public page identifies Webflow, Google Analytics, Cloudflare without precise versions, leaving fewer clues for version-specific scanning.

Search and Social Sharing

The title has 75 characters and may be truncated in search results. The meta description has 165 characters and may be shortened in search results. Twitter Card metadata is configured. The observed directives allow indexing and link following. No Generator meta tag is publicly exposed.

Hosting and Email

DNSCloudflare
HostingCloudflare
EmailGoogle Workspace
Location Location unknown 104.26.8.90

Pages, Search and Sharing

Meta descriptionA coding practice website for all programming levels – Join a community of over 3 million developers and improve your coding skills in over 55 programming languages!
Canonical URLhttps://www.codewars.com
LanguageEnglish (default)
Twitter Cardsummary_large_image

Social Sharing Preview

9 fields

robots.txt (opens in a new tab)

1 rules
All bots 0 allowed · 1 disallowed
  • Disallow/cgi-bin/

Sitemaps

1

Registration details RDAP / WHOIS

RegistrarGoDaddy.com, LLC
Registered2004-06-29
Expires2027-06-29
Domain statusclient delete prohibited、client renew prohibited、client transfer prohibited、client update prohibited
Nameserversalla.ns.cloudflare.com、jay.ns.cloudflare.com
DNSSECunsigned

DNS records

TypeNameValueTTLPriority
Acodewars.com104.26.8.90300—
Acodewars.com104.26.9.90300—
Acodewars.com172.67.73.105300—
AAAAcodewars.com2606:4700:20::681a:85a300—
AAAAcodewars.com2606:4700:20::681a:95a300—
AAAAcodewars.com2606:4700:20::ac43:4969300—
MXcodewars.comaspmx.l.google.com3001
MXcodewars.comalt1.aspmx.l.google.com3005
MXcodewars.comalt2.aspmx.l.google.com3005
MXcodewars.comaspmx2.googlemail.com30010
MXcodewars.comaspmx3.googlemail.com30010
NScodewars.comalla.ns.cloudflare.com86400—
NScodewars.comjay.ns.cloudflare.com86400—
TXTcodewars.comSendinblue-code:43031cb74265bb1cc979e43aa33341b9300—
TXTcodewars.comdetectify-verification=f02777169664fd55c980859b4759dd20300—
TXTcodewars.comgoogle-site-verification=aRDT9_GRhY0nxFlGkyDRwQiAVeE-4AYAmw6iNMeE9EQ300—
TXTcodewars.comgoogle-site-verification=apBZnyvMWEyK0jCMm8jL9NKrcRBRZ7i2UVkuwB0M5hs300—
TXTcodewars.comgoogle-site-verification=mJLCn8kdW0RIckA2u8dTpED3UaT9yIQVu8PpzVGvNVo300—
TXTcodewars.comv=spf1 a mx include:_spf.google.com include:sparkpostmail.com include:spf.sendinblue.com include:mail.zendesk.com -all300—
DMARC_dmarc.codewars.comv=DMARC1; p=reject; rua=mailto:[email protected]!10m; ruf=mailto:[email protected]!10m; rf=afrf; pct=100; ri=86400300—

TLS and certificates

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectcodewars.com
IssuerLet's Encrypt
Valid until2026-10-05T14:25 · Remaining when checked: 31 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HeaderValue
content-typetext/html; charset=utf-8
cache-controlmax-age=0, private, must-revalidate
servercloudflare
content-security-policyframe-ancestors 'self';
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policystrict-origin-when-cross-origin
set-cookieRedacted

Identified technologies

WebflowGoogle AnalyticsCloudflare

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