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Security report for coursera.org

Coursera, Inc. · Education · United States

Low risk. 2 critical or high findings in Security headers and SSL/TLS.

Security score

84/100

Risk levelLow

0–100, higher is better. How it is calculated

Coursera, Inc. is a leading global online education platform founded in 2012, offering a wide range of courses, professional certificates, and degree programs in partnership with top universities and industry leaders such as Google, IBM, and Meta. The platform targets students, professionals, and lifelong learners seeking to advance their careers and acquire new skills. Coursera holds a strong market position as a trusted provider of accessible, high-quality education worldwide. Technically, Coursera employs a modern web technology stack including React, Webpack, and Amazon Cloudfront for hosting and content delivery. The website demonstrates excellent performance, mobile optimization, and accessibility features, supported by comprehensive SEO and metadata implementation. Privacy and cookie policies are clearly presented with GDPR compliance and user consent mechanisms in place. From a security perspective, Coursera enforces HTTPS, implements robust security headers, and follows best practices to protect user data and maintain platform integrity. No significant vulnerabilities or exposed sensitive data were detected. However, the absence of a publicly available incident response or vulnerability disclosure policy suggests room for improvement in transparency and security communication. Overall, Coursera presents a low-risk profile with a professional, secure, and user-friendly online presence. Strategic recommendations include enhancing incident response visibility, publishing a vulnerability disclosure policy, and maintaining continuous security audits to uphold trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 100 · Low
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

2 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

Need hands-on remediation? Email guard@offseq.com

Keep watching coursera.org

This scan found 15 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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Recommended

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
72
Security headers
70
Email security
80
DNS health
85
Network security
100
GDPR outside view
95
Average
84

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention coursera.org, from OffSeq Breach.

Total records
2,590,830
Employees
95
Customers
2,590,659
Third parties
76
Weak passwords
12%

Latest record dated 2026-06-07 · 667 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for coursera.org.

Select it in the checkout above.

Masked preview

  • –www.coursera.org2026-06-07
  • –www.coursera.org2026-05-30
  • –fr.coursera.org2026-05-27
  • –www.coursera.org2026-05-20
  • –coursera.org2026-05-15

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Coursera operates in the education sector as an essential entity with an enterprise-sized footprint. Its business model revolves around providing online learning content through partnerships with prestigious universities and corporations, generating revenue via course fees, subscriptions, and degree programs. The platform's competitive advantage lies in its extensive partner ecosystem, brand recognition, and comprehensive course offerings. Target customers include individual learners, enterprises, and academic institutions. Growth indicators include continuous expansion of course catalog and partnerships. Coursera's operations reflect a mature digital business with strong market presence and strategic alliances.

Security posture

Coursera exhibits a mature security posture with enforced HTTPS, comprehensive security headers, and secure handling of user inputs. The platform avoids exposing sensitive information in its HTML and uses industry-standard technologies for tracking and consent management. While no critical vulnerabilities were identified, the lack of a public incident response or vulnerability disclosure policy indicates a potential compliance gap. Data protection practices align with GDPR requirements, supported by clear privacy policies and cookie consent mechanisms. Incident response readiness and security culture could be enhanced by publishing dedicated security policies and contact channels.

Recommendations

  1. Publish a clear incident response policy and security contact information to improve transparency and readiness.
  2. Implement and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  3. Continue regular security audits and penetration testing to identify and remediate emerging threats.
  4. Enhance user trust by providing more visible certifications and compliance attestations on the website.
  5. Maintain and update privacy and cookie policies to reflect evolving regulations and best practices.

Contact details published on the site

Addresses
Legal name
Coursera, Inc.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Coursera, Inc.
Description
Learn new job skills in online courses from industry leaders like Google, IBM, & Meta. Advance your career with top degrees from Michigan, Penn, Imperial & more.
Key services
Online courses, Professional certificates, Degree programs, Skill development
Content quality
excellent
Branding
consistent

Technology

Stack
React, JavaScript, Webpack, Cloudfront CDN, Google Tag Manager, OneTrust (cookie consent)
Frameworks
React
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Secure forms with proper input types

Analytics and tracking

Services
Google Analytics, Google Ads
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Google Ads
Marketing tools
OneTrust
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with no blocking or WAF challenge
  2. Content is professionally presented and relevant to education
  3. Strong use of modern web technologies and security best practices
  4. Privacy and cookie policies are present and comprehensive
  5. No suspicious or malicious content detected
  6. WHOIS data unavailable, likely due to privacy protection services
Technical notes

Notes

The website is built on a modern React framework with efficient asset delivery via Amazon Cloudfront CDN, ensuring fast load times and scalability. Use of Google Tag Manager and OneTrust indicates mature marketing and privacy compliance infrastructure. The site is mobile-optimized with responsive design and accessibility considerations. No CMS was explicitly detected, suggesting a custom or proprietary platform. Technical risks are minimal, with good SEO and metadata practices observed. Opportunities exist to improve technical documentation of security policies and incident handling.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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