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Security report for zoominfo.com

ZoomInfo · Technology · N/a

Medium risk. 8 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

67/100

Risk levelMedium

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

ZoomInfo is a technology company known for providing business intelligence and data solutions. However, the website content is currently inaccessible due to a PerimeterX Web Application Firewall (WAF) challenge, which prevents a full analysis of the site’s content, policies, and contact information. The visible infrastructure includes PerimeterX anti-bot technology and Google Fonts, indicating a modern web stack but limited transparency due to blocking. The WHOIS data for the domain is unavailable, which reduces trust and complicates verification of domain legitimacy. Overall, the security posture is limited to the presence of WAF protection, but no further security headers or policies are visible. The site appears safe in terms of content, with no adult or explicit material detected.

Scanned

This is an earlier scan of zoominfo.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

8 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

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

Keep watching zoominfo.com

This scan found 19 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
75
Security headers
15
Email security
87
DNS health
90
Network security
100
GDPR outside view
35
Average
67

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

ZoomInfo operates in the technology sector, likely as a large enterprise given its brand recognition. The business model presumably revolves around providing data and intelligence services to other businesses. Due to the blocked content, detailed insights into market positioning, revenue streams, or partnerships cannot be confirmed. The lack of visible contact or policy information on the site reduces transparency and may impact user trust. The presence of PerimeterX suggests a focus on protecting digital assets from automated threats, which is common for companies handling sensitive business data.

Security posture

The security posture is partially observable and includes a strong WAF presence via PerimeterX, which mitigates automated attacks and bots. However, the absence of visible security headers, privacy policies, or incident response contacts limits the assessment of compliance and readiness. The lack of WHOIS transparency further complicates trust evaluation. No vulnerabilities or exposed sensitive data are visible due to content blocking, but this also prevents a full security audit. Compliance with GDPR or other frameworks cannot be confirmed from the available data.

Recommendations

  1. Allow controlled access to website content to enable comprehensive security and compliance assessments.
  2. Publish clear privacy, cookie, and terms of service policies to improve transparency and user trust.
  3. Implement and expose security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Provide visible contact information including security incident response channels.
  5. Improve WHOIS data transparency or justify privacy protection to enhance domain legitimacy.
Site observations

Automated reading of the public site. Ratings are indicative.

PerimeterX detected. Page is blocked by PerimeterX WAF with a human verification challenge. These observations may be incomplete. For a fuller analysis, contact guard@offseq.com.

Business

Company
ZoomInfo

Technology

Stack
PerimeterX, Google Fonts Roboto

Security

Observed score
20/100

Analytics and tracking

Advertising

Marketing tools
PerimeterX

Site quality

Trustworthiness
low

Key observations

  1. Website content is inaccessible due to PerimeterX WAF challenge.
  2. No metadata, forms, or contact information visible in the HTML content.
  3. No privacy, cookie, or terms of service policies detected.
  4. No visible security headers or SSL configuration details available.
  5. External resources loaded from Google Fonts and PerimeterX domains.
  6. No social media links, emails, or phone numbers found in the content.
  7. WHOIS data is missing or unavailable, indicating privacy or registry issues.
  8. Content safety is rated safe based on business nature and lack of explicit content.
  9. AI scoring limited due to blocked content and lack of data.
Technical notes

Notes

The website uses PerimeterX for bot mitigation and Google Fonts for typography. The HTML content is minimal and primarily serves a CAPTCHA challenge, indicating a strong security posture against automated access but limiting content availability. No CMS or hosting provider information is discernible. Performance and SEO cannot be evaluated due to blocked content. Mobile optimization and accessibility are unknown. The technical stack appears modern but is obscured by security controls.
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. 67/100Medium28 findingsView report
  2. 67/100 +2Medium28 findingsView report
  3. 65/100Medium25 findingsView report
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