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Security report for mc4wp.com

ibericode BV · Technology · N/a

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

62/100

Risk levelMedium

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

MC4WP (Mailchimp for WordPress) is a well-established WordPress plugin developed by ibericode BV, providing seamless integration between WordPress sites and Mailchimp email marketing services. The plugin enjoys a strong market position with over 2 million active users and 60 million downloads, supported by a freemium business model offering both free and premium features. The website content is professionally presented, targeting WordPress site owners and developers seeking to enhance their email marketing capabilities. Technically, the site leverages WordPress CMS with Jekyll for SEO metadata generation and employs privacy-friendly analytics (Koko Analytics), reflecting a mature digital infrastructure with good performance and mobile optimization. Security posture is solid with HTTPS enforced and no visible vulnerabilities, though the absence of explicit security policies and incident response information suggests room for improvement. The lack of WHOIS data for the domain is a notable anomaly that reduces trustworthiness, although the overall business credibility remains high due to consistent branding, positive user testimonials, and comprehensive privacy and terms policies. Strategic recommendations include implementing cookie consent mechanisms, publishing security and incident response policies, and resolving WHOIS data inconsistencies to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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

5 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 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 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

  3. 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 mc4wp.com

This scan found 22 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.

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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Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
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  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
65
Email security
80
DNS health
80
Network security
40
GDPR outside view
53
Average
62

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

MC4WP operates in the technology sector, specifically focusing on WordPress plugin development for email marketing integration. Its competitive advantage lies in its large user base, extensive feature set, and strong community support. The freemium model drives revenue through premium add-ons, targeting small to medium-sized businesses and individual site owners. The company maintains a professional online presence with clear branding and positive user feedback. Partnerships with WordPress.org and GitHub enhance credibility and distribution. Growth indicators include a decade-long market presence and continuous feature development. However, the absence of direct contact information and WHOIS transparency may limit some enterprise trust. The ecosystem includes related domains such as ibericode.com and my.mc4wp.com for account management and support.

Security posture

The website demonstrates a good security maturity level with HTTPS enforced and use of privacy-respecting analytics. No security headers were explicitly detected in the HTML content, and no exposed sensitive data or vulnerable libraries were found. However, the site lacks published security policies, incident response plans, and vulnerability disclosure mechanisms, which are important for compliance with GDPR and emerging regulations like NIS2. The absence of WHOIS data raises concerns about domain registration transparency. Overall, the security posture is solid but could be enhanced by formalizing security governance and improving transparency.

Recommendations

  1. Implement a visible cookie consent banner to comply with privacy regulations and improve user trust.
  2. Publish a dedicated security policy and incident response plan on the website to demonstrate security governance.
  3. Establish a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.
  4. Resolve WHOIS data availability issues to improve domain registration transparency and trustworthiness.
  5. Enhance contact information availability, including security contact channels, to facilitate communication and compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ibericode BV
Description
The #1 WordPress plugin to integrate your WordPress site with Mailchimp.
Key services
Mailchimp integration plugin for WordPress, Sign-up forms, Integrations with other WordPress forms, Premium add-ons with advanced features
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Jekyll (generator meta tag), Koko Analytics, FontAwesome
Frameworks
Jekyll
Platforms
WordPress
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Privacy-friendly analytics used (Koko Analytics)

Analytics and tracking

Services
Koko Analytics
Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
Koko Analytics
Transparency
basic

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 professional design
  2. No WAF or security blocking detected
  3. WHOIS data unavailable, which is unusual and reduces trust score
  4. Strong business presence with large user base and positive testimonials
  5. No direct contact emails or phone numbers found on main pages
  6. Privacy policy and terms of service are present and comprehensive
  7. No cookie consent mechanism detected
  8. Uses privacy-friendly analytics (Koko Analytics)
  9. No explicit security or incident response policies published
Technical notes

Notes

The website is built on WordPress CMS with additional SEO metadata generated by Jekyll. It uses modern web technologies including FontAwesome for icons and Koko Analytics for privacy-friendly visitor tracking. The site is well-structured with responsive design and optimized images, contributing to fast load times and good mobile experience. No major technical debt or outdated libraries were detected. Hosting provider details are not explicitly available. The site lacks some security headers which could be added to improve security posture. Overall, the technical implementation is robust and supports the business goals effectively.
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

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