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freecodecamp.org Paid content

Categories: Development Education & Learning

Tags: CodeDevelopersOnline Courses

Learn to Code — For Free

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Updated: 2026-09-01 09:30 Language: English (default) Access: Normal

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Learn to Code — For Free — Coding Courses for Busy People Full homepage screenshot

Website Overview

Identifiable technologies and additional version or configuration signals make the service easier to fingerprint, which may help targeted scanners narrow their checks. An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality.

Domain and Registration

Registered in 2014, this domain has about 11 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 NameCheap, Inc., a widely used domain service provider. The domain uses the common .org 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, Microsoft. 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 within the Google Trust Services cloud or CDN ecosystem. The certificate's total validity is about 90 days, consistent with a short renewal cycle.

HTTP and Browser Security

The response lacks these common security headers: Permissions-Policy. No X-Powered-By header was found, reducing one common source of backend fingerprinting information. The cf-ray 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 Gatsby 5.16.1, Cloudflare, with exact versions exposed for 1 technologies. These details can narrow vulnerability checks, although exposure alone is not a vulnerability.

Search and Social Sharing

No homepage title was detected; search engines may construct one from other page content. No homepage meta description was detected, leaving snippet selection more dependent on page text. The Generator tag identifies Gatsby 5.16.1, making the publishing system easier to fingerprint. No homepage canonical URL was detected. If duplicate URLs exist, consolidation may be less explicit. Open Graph is partially configured; og:title, og:description, og:type is missing.

Hosting and Email

DNSCloudflare
HostingCloudflare
EmailGoogle Workspace
Location Location unknown 104.26.2.33

Pages, Search and Sharing

Meta descriptionNot detected
Canonical URLNot detected
LanguageEnglish (default)
Twitter Cardsummary_large_image

Social Sharing Preview

4 fields

robots.txt (opens in a new tab)

1 rules
All bots 1 allowed · 0 disallowed
  • Allow/

Sitemaps

1

Registration details RDAP / WHOIS

RegistrarNameCheap, Inc.
Registered2014-11-03
Expires2028-11-03
Domain statusclient transfer prohibited
Nameserversanna.ns.cloudflare.com、cash.ns.cloudflare.com
DNSSECunsigned

DNS records

TypeNameValueTTLPriority
Awww.freecodecamp.org104.26.2.33300—
Awww.freecodecamp.org104.26.3.33300—
Awww.freecodecamp.org172.67.70.149300—
AAAAwww.freecodecamp.org2606:4700:20::681a:221300—
AAAAwww.freecodecamp.org2606:4700:20::681a:321300—
AAAAwww.freecodecamp.org2606:4700:20::ac43:4695300—
MXfreecodecamp.orgaspmx.l.google.com3001
MXfreecodecamp.orgalt1.aspmx.l.google.com3005
MXfreecodecamp.orgalt2.aspmx.l.google.com3005
MXfreecodecamp.orgalt3.aspmx.l.google.com30010
MXfreecodecamp.orgalt4.aspmx.l.google.com30010
NSfreecodecamp.organna.ns.cloudflare.com86400—
NSfreecodecamp.orgcash.ns.cloudflare.com86400—
TXTfreecodecamp.orgMS=ms63208939300—
TXTfreecodecamp.orggoogle-site-verification=TakbUdLjWbZfk3W5EKfzCHCvN0r3O3TvCOsl6Q6-NkY300—
TXTfreecodecamp.orggoogle-site-verification=b4tITLzEeeZGEpvD4mGNf3khKM4fvqejQaz9SYBQP8E300—
TXTfreecodecamp.orggoogle-site-verification=d9ZvgQC_Lvg8J-GkpD6kHmBHCsuw8-A8BJXIwqCRL7g300—
TXTfreecodecamp.orggoogle-site-verification=jgKWN_Bx9-FlyACDYQkp5UT5VZqlidL0DDKaliqkN84300—
TXTfreecodecamp.orggoogle-site-verification=zsi_ytS9f3kFX0_IwEDRWjB9d0nb80hZdgCX9Yc-OPo300—
TXTfreecodecamp.orghave-i-been-pwned-verification=dweb_tgzo6k7eg8wn7o4fzhc021v1300—
TXTfreecodecamp.orgmongodb-site-verification=iLPVBZkbjFGe4pz4YszIe6a2KG7U0Eja300—
TXTfreecodecamp.orgv=spf1 mx include:_spf.google.com include:amazonses.com -all300—
DMARC_dmarc.freecodecamp.orgv=DMARC1; p=quarantine; rua=mailto:[email protected]; sp=reject; fo=1:d:s; adkim=s;300—

TLS and certificates

AssessmentNormal configuration
Supported protocolsTLSv1.2、TLSv1.3
Negotiated protocolTLSv1.3
Certificate subjectwww.freecodecamp.org
IssuerGoogle Trust Services
Valid until2026-10-17T15:26 · Remaining when checked: 48 days
Verification detailsCertificate trust: Passed · Hostname match: Passed

HTTP response headers

HeaderValue
content-typetext/html; charset=utf-8
cache-controlpublic, max-age=0, must-revalidate
servercloudflare
strict-transport-securitymax-age=31536000; includeSubDomains; preload
content-security-policydefault-src 'self' http: https: data: blob: 'unsafe-inline' 'unsafe-eval'; frame-ancestors 'self';
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policyno-referrer-when-downgrade

Identified technologies

Gatsby 5.16.1Cloudflare

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