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Security report for alibris.com

Alibris · Retail · United States

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

73/100

Risk levelMedium

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

Alibris is a well-established online marketplace specializing in new and used books, textbooks, music, and movies, operating since 1997. The platform connects consumers with independent sellers worldwide, offering a vast inventory including rare and out-of-print items. The website demonstrates a mature digital presence with comprehensive content, clear navigation, and a professional design that supports a positive user experience. The company maintains strong trust indicators such as BBB accreditation and extensive customer reviews, reinforcing its market position in the retail e-commerce sector. Technically, the website employs a modern technology stack including jQuery, Bootstrap, Google Analytics, and various advertising and tracking tools. Hosting and security infrastructure leverage Cloudflare services, ensuring good performance and HTTPS enforcement. Accessibility and SEO optimizations are well implemented, contributing to the site's usability and discoverability. However, the absence of an explicit cookie consent mechanism suggests a potential compliance gap with privacy regulations. From a security perspective, the site follows best practices with HTTPS, secure forms, and no visible vulnerabilities or exposed sensitive data. The lack of a published security policy or incident response contact limits transparency in security governance. WHOIS data is unavailable, which slightly impacts trustworthiness but is mitigated by the site's professional appearance and external trust signals. Overall, Alibris presents a low-risk profile with strong business credibility and technical maturity. Strategic recommendations include enhancing privacy compliance with cookie consent, publishing security policies, and adding vulnerability disclosure mechanisms to further strengthen trust and security posture.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 100 · Medium
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

5 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. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  3. 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
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching alibris.com

This scan found 21 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.

Daily monitoring

Recommended

€25per month

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

Email alerts on material changes and an exportable JSON history of every change.

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Full report

€39.90one-time

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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
52
Security headers
65
Email security
80
DNS health
85
Network security
100
GDPR outside view
53
Average
73

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

Technical appendix

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

Business context

Business profile

Alibris operates as a large-scale e-commerce marketplace focused on media products, primarily books, music, and movies. Its competitive advantage lies in its extensive inventory, including rare and collectible items, and its network of independent sellers globally. Revenue streams likely include sales commissions, textbook buyback programs, and affiliate partnerships. The target customer segments range from casual readers to collectors and academic users. The company maintains partnerships with international sites and library services, expanding its market reach. Growth indicators include active marketing, seasonal promotions, and a robust community engagement platform. The business ecosystem is supported by multiple third-party integrations for analytics, advertising, and customer reviews, reflecting a mature operational model.

Security posture

The security maturity of Alibris is solid, with HTTPS enforced site-wide and secure handling of user inputs through forms. The presence of multiple security-related headers is inferred though not explicitly confirmed. The site uses reputable third-party services for analytics and advertising, which are standard in e-commerce but require ongoing monitoring for privacy compliance. No critical vulnerabilities or exposed sensitive information were detected in the HTML content. However, the absence of a public security policy, incident response contacts, and vulnerability disclosure mechanisms indicates room for improvement in transparency and incident readiness. GDPR compliance is partially addressed via privacy policy but lacks explicit cookie consent mechanisms. Overall, the security posture is good but could be enhanced with formalized policies and user-facing security disclosures.

Recommendations

  1. Implement a visible and compliant cookie consent banner to address GDPR and privacy regulations.
  2. Publish a comprehensive security policy and incident response contact information on the website.
  3. Establish and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Enhance Content-Security-Policy headers to mitigate risks from third-party scripts and reduce attack surface.
  5. Regularly audit third-party scripts and tracking tools to ensure privacy compliance and minimize user tracking.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Alibris
Description
Alibris is your source for new and used books, textbooks, music and movies. Alibris has been selling books, movies and music since 1997.
Key services
New and used books sales, Textbooks sales and buyback, Music and movies sales, eBooks sales, Marketplace for independent sellers
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Bootstrap 4.6.1, Google Analytics, Google Tag Manager, Facebook Pixel, Bing UET, Sitejabber widget, Granify, Pixie by AppNexus, Cloudflare Insights
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Secure forms with POST method
  • No exposed sensitive data in HTML
  • Use of reputable third-party security/tracking scripts

Analytics and tracking

Services
Google Analytics, Google Tag Manager, Bing UET, Facebook Pixel
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
AppNexus, Bing Ads, DoubleClick
Tracking pixels
Facebook Pixel, Bing UET, Granify, Pixie
Marketing tools
Granify
Transparency
good

Site quality

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

Key observations

  1. Website is a mature, professional e-commerce platform specializing in books, music, and movies.
  2. Content is rich, well-structured, and user-friendly with clear navigation and search functionality.
  3. Strong presence of third-party trust signals and customer reviews.
  4. No signs of malicious or suspicious content.
  5. WHOIS data is unavailable which is unusual but does not necessarily indicate malicious intent.
  6. No explicit cookie consent mechanism detected which may be a compliance gap.
  7. Multiple external tracking and advertising scripts are used extensively.
Technical notes

Notes

The website infrastructure is built on a modern and widely supported technology stack including jQuery and Bootstrap for frontend UI, with extensive use of third-party analytics and advertising scripts such as Google Analytics, Facebook Pixel, Bing UET, and AppNexus. Hosting is likely via Cloudflare, providing CDN and security benefits. Performance is moderate with good mobile optimization and accessibility features. SEO is well addressed through meta tags, Open Graph, and structured data (JSON-LD). The site uses secure HTTPS connections and standard web security practices. Technical debt appears low, but the presence of multiple external scripts requires ongoing management to avoid performance degradation and privacy issues. Opportunities exist to improve security headers and privacy compliance mechanisms.
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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