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Security report for safaribooksonline.com

O'Reilly Media · Technology · United States

Low risk. 2 critical or high findings in GDPR outside view.

Security score

83/100

Risk levelLow

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

O'Reilly Media is a well-established technology and business training company founded in 1978, offering a comprehensive online learning platform that serves professionals, teams, enterprises, academic institutions, and government organizations globally. The company leverages a rich content library, expert practitioners, and advanced AI/ML technologies to deliver personalized learning experiences that drive business outcomes. Their market position is strong, supported by decades of industry presence and a broad service offering including subscription plans and mobile applications. Technically, the website employs modern web technologies including Google Tag Manager, Visual Website Optimizer, and jQuery, with structured data enhancing SEO and discoverability. The platform is mobile-optimized and provides a good user experience, though some accessibility features could be improved. Performance is moderate, with room for optimization. From a security perspective, the site uses HTTPS and includes no obvious vulnerabilities or exposed sensitive data. However, the absence of explicit security policies, incident response contacts, and vulnerability disclosure mechanisms suggests opportunities for strengthening security transparency and compliance. The WHOIS data is notably missing or inconsistent, which is unusual for a company of this stature and should be investigated further. Overall, O'Reilly Media presents a professional, trustworthy online presence with excellent content quality and business credibility. Strategic improvements in privacy compliance documentation, security policy publication, and WHOIS data transparency would enhance trust and regulatory alignment.

Scanned

NIS2 and GDPR posture

GDPR outside view
58/ 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

2 findings rated critical or high. Fix these first.

  1. 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

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Keep watching safaribooksonline.com

This scan found 14 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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  • 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
100
Security headers
75
Email security
75
DNS health
90
Network security
100
GDPR outside view
58
Average
83

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 safaribooksonline.com, from OffSeq Breach.

Total records
30,819
Employees
2
Customers
30,817
Third parties
0
Weak passwords
9%

Latest record dated 2026-05-20 · 29 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 safaribooksonline.com.

Select it in the checkout above.

Masked preview

  • –safaribooksonline.com2026-05-20
  • –www.safaribooksonline.com2025-07-20

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

O'Reilly Media operates in the technology education sector with a subscription-based online learning platform targeting a diverse audience including individual professionals and large organizations. Their competitive advantage lies in their extensive content partnerships, expert-led training, and integration of AI/ML for personalized learning. Revenue streams likely include individual and enterprise subscriptions, team training demos, and mobile app engagement. The company maintains a global footprint with offices in the US, UK, China, and Japan, indicating a broad market reach. Their strategic focus on emerging technologies and business skills positions them well for continued growth in the digital learning market.

Security posture

The website demonstrates a baseline security posture with HTTPS usage and no visible sensitive data leaks. However, the lack of security headers and absence of published security or incident response policies indicate gaps in security maturity. No vulnerability disclosure or security.txt files were found, which limits transparency for security researchers. The WHOIS data inconsistency raises questions about domain registration management. Overall, the security posture is moderate but could be improved by adopting best practices such as publishing security policies, implementing comprehensive HTTP security headers, and establishing clear incident response contacts.

Recommendations

  1. Publish a comprehensive privacy policy and cookie consent mechanism to improve privacy compliance.
  2. Implement and enforce HTTP security headers including Content Security Policy, HSTS, and X-Frame-Options.
  3. Establish and publicize a vulnerability disclosure policy and security.txt file to enhance security transparency.
  4. Investigate and resolve WHOIS data inconsistencies to reinforce domain legitimacy and trust.
  5. Enhance accessibility features to meet WCAG standards and improve user inclusivity.

Contact details published on the site

Addresses
Legal name
O'Reilly Media, Inc.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
O'Reilly Media
Description
The O'Reilly learning platform is a skill-building platform that equips individuals and teams with the resources that drive business outcomes. We help tech teams stay ahead. O'Reilly empowers professionals, teams, enterprises, academic institutions, and government organizations to forge a brighter future with guidance from the pioneers who shape today's world. For over 45 years, we've built a renowned community of expert active practitioners with a knack for teaching, and we've cultivated an inherent ability to anticipate technological and business developments by tracking emerging trends. O'Reilly uniquely offers a comprehensive online learning solution that provides insights from these visionary experts and nearly 200 respected providers. We cater to the needs of all learners with diverse content formats and coverage across an abundance of topic areas in all skill levels. And we leverage AI and ML for a truly personalized experience that drives productivity and fosters continuous learning. These distinct tools combined with our unmatched content make O'Reilly the clear choice to acquire in-demand skills, drive career growth, and stay ahead in a rapidly changing world.
Key services
Online learning platform, Technology and business training, Team skill development, Subscription plans, Mobile apps
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, Visual Website Optimizer (VWO), jQuery, Google Analytics, JSON-LD structured data, HTML5, CSS3
Platforms
Web, iOS app, Android app
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • Use of HTTPS (implied by URLs)
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Services
Google Analytics, Google Tag Manager, Visual Website Optimizer
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Visual Website Optimizer
Marketing tools
VWO
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content and structured data.
  2. No WAF or blocking mechanisms detected.
  3. WHOIS data is missing or inaccessible for the domain queried.
  4. Strong branding and professional presentation.
  5. Use of multiple tracking and optimization tools.
  6. No explicit privacy or cookie policies found in the provided HTML content.
  7. Contact information is clearly provided in structured data.
  8. No visible security policy or incident response information.
  9. No vulnerability disclosure or security.txt detected.
Technical notes

Notes

The website uses a modern technology stack with Google Tag Manager for analytics, Visual Website Optimizer for A/B testing, and jQuery for DOM manipulation. Structured data in JSON-LD format is well implemented, improving SEO and rich snippet eligibility. The site is mobile-optimized and loads with moderate performance. However, no CMS or hosting provider details are evident from the HTML. The presence of multiple third-party scripts necessitates ongoing security audits to mitigate risks. Opportunities exist to improve performance and accessibility compliance to enhance overall user experience.
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. 83/100Low18 findingsView report
  2. 83/100Low18 findingsView report
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