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Security report for campaignmonitor.com

Campaign Monitor · Technology · United States

Medium risk. 9 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

60/100

Risk levelMedium

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

Campaign Monitor is a well-established email marketing platform founded in 2004 and currently owned by Marigold. The company provides a comprehensive SaaS solution for businesses to create, send, and optimize email marketing campaigns, including features such as segmentation, personalization, marketing automation, transactional emails, and analytics. The website reflects a mature digital presence with strong branding, customer trust signals, and a broad set of integrations and marketing tools. Technically, the site is built on WordPress with modern frameworks like Tailwind CSS and integrates multiple analytics and tracking services, demonstrating a high level of digital maturity. Security-wise, the site enforces HTTPS, uses security headers, and implements reCAPTCHA, but lacks publicly disclosed security policies or incident response contacts, which could be improved. Overall, the website is professional, secure, and compliant with privacy regulations, though the absence of WHOIS data is a minor concern that does not detract significantly from its legitimacy.

Scanned

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

9 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 campaignmonitor.com

This scan found 26 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
52
Security headers
15
Email security
70
DNS health
85
Network security
100
GDPR outside view
35
Average
60

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 campaignmonitor.com, from OffSeq Breach.

Total records
25,059
Employees
4
Customers
24,992
Third parties
63
Weak passwords
11%

Latest record dated 2025-08-22 · 18 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 campaignmonitor.com.

Select it in the checkout above.

Masked preview

  • –campaignmonitor.com2025-08-22
  • –www.campaignmonitor.com2025-08-10
  • –campaignmonitor.com2025-08-08
  • –www.campaignmonitor.com2025-07-05

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

Campaign Monitor occupies a strong position in the email marketing industry, targeting businesses and marketers globally. Its business model is subscription-based SaaS, offering tiered plans with predictable pricing. The company leverages partnerships and integrations to enhance its ecosystem and maintains a reputable brand with endorsements from platforms like G2. Revenue streams primarily come from subscription fees and expert services. The company’s target customers range from small businesses to enterprises seeking scalable email marketing solutions. Growth indicators include a large customer base and continuous feature expansion, including AI capabilities. The partnership ecosystem includes integrations with major platforms and marketing tools, enhancing its competitive advantage.

Security posture

The website demonstrates a solid security posture with HTTPS enforcement, use of security headers, and anti-bot measures like reCAPTCHA. Privacy and cookie policies are present with consent mechanisms, indicating GDPR compliance. However, the absence of a dedicated security policy, incident response information, and vulnerability disclosure program suggests room for improvement in transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the content. The security score is good but could be enhanced by publishing more detailed security and incident response documentation and obtaining recognized certifications.

Recommendations

  1. Publish a dedicated security policy page outlining security controls and practices.
  2. Provide clear incident response contact information and procedures.
  3. Implement and publicize a vulnerability disclosure or bug bounty program.
  4. Obtain and display relevant security certifications (e.g., ISO 27001).
  5. Enhance transparency on data retention and processing policies.

Contact details published on the site

Addresses
Legal name
Campaign Monitor
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Campaign Monitor
Description
Campaign Monitor makes it easy for you to create, send, and optimize your email marketing campaigns.
Key services
Email marketing platform, Email template builder, Segmentation, Personalization, Marketing automation, Transactional email, Analytics, Integrations, Signup forms, SMS marketing
Content quality
excellent
Branding
consistent

Technology

Stack
Google Analytics, Segment Analytics, Facebook Pixel, Hotjar, LinkedIn Insight Tag, Google Tag Manager, reCAPTCHA, Demandbase, WordPress, Yoast SEO, jQuery
Frameworks
Tailwind CSS
Platforms
WordPress CMS
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of reCAPTCHA for forms
  • Cookie consent mechanism
  • No exposed sensitive data in HTML
  • Use of security headers

Analytics and tracking

Services
Google Analytics, Segment, Hotjar, Facebook Pixel, LinkedIn Insight Tag
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google DoubleClick
Tracking pixels
Facebook Pixel, LinkedIn Insight Tag, Hotjar, Segment Analytics
Marketing tools
Segment, Hotjar, Demandbase
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 no blocking detected
  2. Strong branding and customer trust signals present
  3. Comprehensive use of modern marketing and analytics technologies
  4. Good privacy and cookie policy presence with consent mechanisms
  5. No explicit security policy or incident response info publicly available
  6. WHOIS data unavailable, which is unusual but not uncommon for privacy-conscious companies
Technical notes

Notes

The website is built on WordPress CMS with Tailwind CSS for styling and uses a modern tech stack including Google Analytics, Segment, Facebook Pixel, Hotjar, and Demandbase for analytics and marketing. The site is mobile-optimized with responsive design and good accessibility features. Performance is moderate, with potential for optimization. SEO is well-implemented with proper meta tags and structured data. The technical infrastructure supports a professional and scalable online presence, though hosting provider details are not explicitly identified. Overall, the technical implementation supports the business goals effectively with opportunities for performance tuning and enhanced security transparency.
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. 62/100Medium33 findingsView report
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