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Security report for ebay.com

eBay Inc. · E-commerce · United States

Partial score · DNS & email only

75/100

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

eBay Inc. operates a leading global e-commerce platform facilitating consumer-to-consumer and business-to-consumer sales worldwide. Founded in 1995, it has established a strong market position with a multibillion-dollar business and operations in approximately 30 countries. The website offers a wide range of products including electronics, cars, fashion, collectibles, and more, targeting a broad audience of consumers and businesses. The business model centers on providing an online marketplace where buyers can shop for free while sellers pay listing and transaction fees. Technically, the website employs modern web technologies such as Marko.js, lazy loading, and extensive JavaScript for dynamic content and performance optimization. The site is well-optimized for mobile devices, accessible, and SEO-friendly. Security is robust with HTTPS enforced, multiple security headers, and client-side error monitoring. Privacy compliance is strong, featuring comprehensive privacy and cookie policies with GDPR adherence and a consent mechanism. The security posture is mature, with no evident vulnerabilities or exposed sensitive data. However, explicit security policies, incident response details, and vulnerability disclosure programs are not publicly documented on the site. The WHOIS data is unavailable due to registry restrictions, which is unusual but likely a privacy measure rather than a red flag. Overall, the site demonstrates high professionalism, trustworthiness, and operational maturity. Strategic recommendations include publishing detailed security and incident response policies, establishing a vulnerability disclosure program, and enhancing transparency around data protection officers and certifications to further strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 100 · Low
Checks completed
6of 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

1 finding rated critical or high. Fix these first.

  1. 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 ebay.com

This scan found 7 issues across 4 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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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
82
Email security
87
DNS health
90
Network security
100
GDPR outside view
100
Average
92
After the cap
75

Not counted

  • Security headers: did not complete in this scan.
  • 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

eBay maintains a dominant position in the e-commerce sector with a diversified product offering and a global reach. Its competitive advantage lies in its extensive marketplace network, brand recognition, and comprehensive seller services. Revenue streams primarily come from seller fees and advertising. The target customer segments include individual consumers and businesses seeking to buy or sell goods online. Growth indicators include continuous platform enhancements, international expansion, and strategic partnerships. The company leverages a broad partnership ecosystem including export services and payment processing. Operationally, eBay focuses on user experience, trust, and security to maintain market leadership.

Security posture

The website exhibits a strong security posture with enforced HTTPS, modern security headers, and client-side monitoring for errors. Privacy compliance is evident with GDPR-aligned cookie consent and privacy policies. However, the absence of publicly available security policies, incident response contacts, and vulnerability disclosure programs suggests room for improvement in transparency and readiness. No critical vulnerabilities or exposed sensitive data were detected. The security culture appears proactive but could benefit from enhanced communication of security practices and certifications to users and partners.

Recommendations

  1. Publish a detailed security policy and incident response plan accessible to users.
  2. Establish and publicize a vulnerability disclosure program to encourage responsible reporting.
  3. Provide contact information for a Data Protection Officer or privacy team to enhance compliance transparency.
  4. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
  5. Enhance user trust by displaying relevant security certifications and compliance badges.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
eBay Inc.
Description
eBay Inc. is an American multinational e-commerce corporation based in San Jose, California, that facilitates consumer-to-consumer and business-to-consumer sales through its website. eBay was founded by Pierre Omidyar in 1995 and operates in about 30 countries. The website is free for buyers, sellers pay fees for listings and sales.
Key services
Online auctions, Shopping platform, Seller services
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Marko.js, Beacon API, Lazy loading, SVG icons
Frameworks
Marko.js
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Content Security Policy
  • Cookie consent banner
  • Error monitoring via client-side beacon

Analytics and tracking

Services
eBay internal analytics
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google Adsense
Tracking pixels
eBay internal tracking, Beacon API
Marketing tools
eBay tracking scripts
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 challenges.
  2. Comprehensive privacy and cookie policies with GDPR compliance.
  3. Clear business and contact information present.
  4. Strong branding and professional design.
  5. Use of modern web technologies and performance optimizations.
  6. No security vulnerabilities or exposed sensitive data detected.
  7. WHOIS data unavailable, likely due to registry privacy or query limitations.
Technical notes

Notes

The website uses a modern and performant technology stack including Marko.js for server-side rendering, lazy loading for images, and extensive JavaScript for dynamic content and user interaction. The site is optimized for fast loading and mobile responsiveness. Accessibility features such as ARIA roles and keyboard navigation aids are implemented. SEO is well addressed with comprehensive meta tags, Open Graph data, and structured JSON-LD schema. Hosting details are not explicitly identified but the infrastructure supports high availability and scalability. Technical risks are minimal, with opportunities for further modernization in security transparency and backend infrastructure documentation.
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

Earlier scans of this domain

  1. 75/100Medium16 findings · partial scanView report
  2. 75/100Medium16 findings · partial scanView report
  3. 75/100Medium16 findings · partial scanView report
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