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Security report for adp.com

ADP · Technology · United States

Low risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

77/100

Risk levelLow

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

ADP is a leading global provider of payroll, HR, tax, compliance, and benefits administration solutions serving over 1.1 million clients worldwide. The company offers a comprehensive suite of services tailored for businesses of all sizes, from small businesses to large enterprises, with a strong emphasis on technology-driven solutions including AI capabilities. The website reflects ADP's market leadership and long-standing history of 75 years in the industry, showcasing multiple awards and client testimonials that reinforce its credibility. Technically, the website is built on a modern infrastructure using Sitecore CMS, with integrations of advanced analytics and marketing tools such as Google Tag Manager, Dynatrace, and Coveo Search. The site is mobile-optimized, accessible, and SEO-friendly, providing a professional user experience with clear navigation and rich content. From a security perspective, the site enforces HTTPS and implements cookie consent mechanisms, with comprehensive privacy and security policies publicly available. While explicit security headers and vulnerability disclosure mechanisms are not fully confirmed, the overall posture is strong with no visible vulnerabilities or exposed sensitive data. Overall, ADP's website demonstrates a mature digital presence with high trustworthiness and compliance, supporting its enterprise-scale business operations. Continued improvements in explicit security header implementation and public incident response information would further enhance its security posture.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
100/ 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

4 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 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. 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 adp.com

This scan found 17 issues across 5 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
62
Security headers
30
Email security
85
DNS health
85
Network security
100
GDPR outside view
100
Average
77

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

ADP operates as an essential entity in the technology sector, focusing on payroll and human capital management services. Its business model is primarily B2B SaaS combined with professional services, targeting a broad range of business sizes and industries globally. The company leverages a strong partnership ecosystem and maintains a robust brand presence with multiple subsidiary domains for careers, investors, and media. ADP's competitive advantage lies in its comprehensive service offerings, technological innovation including AI, and extensive client base. Growth indicators include continuous product development, AI integration, and global expansion. The company maintains a professional and consistent brand image with high-quality content and client engagement.

Security posture

ADP's security maturity is high, with enforced HTTPS, cookie consent, and detailed privacy and data security policies. The absence of explicit security.txt or vulnerability disclosure pages suggests room for improvement in transparency and incident response readiness. No vulnerabilities or exposed sensitive data were detected in the website content. The use of reputable analytics and marketing tools indicates a controlled data collection environment with GDPR compliance. Overall, ADP demonstrates a strong security culture appropriate for an enterprise handling sensitive payroll and HR data, though explicit security header confirmation and public incident response contacts would strengthen its posture.

Recommendations

  1. Implement and publicly document comprehensive security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  3. Provide clear incident response contact information on the website to improve transparency and trust.
  4. Regularly audit third-party scripts and libraries to ensure no vulnerable components are included.
  5. Enhance data retention policy disclosures and user privacy controls to align with evolving privacy regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ADP
Description
ADP offers industry-leading online payroll and HR solutions, plus tax, compliance, benefit administration and more.
Key services
Payroll, HR Services, Tax Services, Compliance Services, Benefits & Insurance, PEO & HR Outsourcing, AI Capabilities, Integrations
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, jQuery, Coveo Search, Securiti.ai Consent SDK, Dynatrace RUM
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of security and privacy policies
  • Cookie consent mechanism implemented
  • No exposed sensitive data detected in HTML

Analytics and tracking

Services
Google Tag Manager, Dynatrace Real User Monitoring
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Evergage
Tracking pixels
Reddit Ads Pixel, Dynatrace RUM
Marketing tools
CaliberMind, Evergage
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 rich content and navigation
  2. Strong focus on payroll, HR, tax, compliance, and benefits services
  3. Multiple language and regional versions available
  4. Comprehensive privacy and cookie policies with consent mechanisms
  5. Use of modern analytics and marketing technologies
  6. No signs of malicious or suspicious content
  7. Clear business contact phone number and forms
  8. Multiple awards and recognitions displayed
  9. No explicit security.txt or vulnerability disclosure found
Technical notes

Notes

The website is built on the Sitecore CMS platform, leveraging modern JavaScript libraries and frameworks including jQuery and Coveo for search functionality. It integrates advanced analytics and monitoring tools such as Google Tag Manager and Dynatrace Real User Monitoring, indicating a mature approach to performance and user experience optimization. The site is mobile responsive and accessible, with good SEO practices evident in meta tags and structured navigation. Performance is moderate, with room for optimization in script loading and resource management. The technical infrastructure supports a scalable and secure environment suitable for enterprise-grade services.
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. 77/100Low23 findingsView report
  2. 77/100Low23 findingsView report
  3. 77/100Low22 findingsView report
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