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Security report for mailchimp.com

Mailchimp · Technology · United States

Low risk. 3 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

82/100

Risk levelLow

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

Mailchimp is a leading marketing automation and email marketing platform owned by Intuit Inc., serving businesses globally with a comprehensive suite of digital marketing tools. The platform leverages AI and real-time behavioral data to help customers increase engagement and sales. The website reflects a mature, enterprise-grade digital presence with strong branding, extensive integrations, and a focus on user experience. Technically, the site employs modern JavaScript frameworks, integrates multiple analytics and tracking services, and uses robust consent management tools to comply with privacy regulations. Hosting and DNS configurations indicate enterprise-level infrastructure with Akamai and Intuit's own platforms. From a security perspective, the site enforces HTTPS, uses domain locking statuses, and integrates CAPTCHA and error monitoring services. However, DNSSEC is not enabled, and explicit security policies or incident response contacts are not publicly detailed, representing areas for improvement. Overall, the website is professional, trustworthy, and compliant with major privacy standards, posing low risk. Strategic recommendations include enabling DNSSEC, publishing security policies, and adding a vulnerability disclosure mechanism to enhance transparency and security posture.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
85/ 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

3 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 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

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

Keep watching mailchimp.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.

Daily monitoring

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
82
Security headers
45
Email security
87
DNS health
90
Network security
100
GDPR outside view
85
Average
82

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 mailchimp.com, from OffSeq Breach.

Total records
842,947
Employees
59
Customers
842,743
Third parties
145
Weak passwords
8%

Latest record dated 2026-06-18 · 617 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 mailchimp.com.

Select it in the checkout above.

Masked preview

  • –login.mailchimp.com2026-06-18
  • –login.mailchimp.com2026-06-17
  • –login.mailchimp.com2026-05-28
  • –login.mailchimp.com2026-05-28
  • –login.mailchimp.com2026-05-25

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

Mailchimp holds a strong market position as a pioneer and leader in email marketing and marketing automation SaaS solutions. Its business model focuses on subscription-based services with tiered pricing and free trials to attract a broad range of customers from startups to enterprises. The company targets marketers, small to large businesses, and e-commerce platforms, supported by a rich ecosystem of integrations with major commerce and CRM platforms. The parent company, Intuit, provides additional credibility and resources, enabling Mailchimp to maintain competitive advantages such as AI-driven marketing tools and extensive analytics capabilities. The website content and structure reflect a mature, well-funded operation with clear growth and partnership strategies.

Security posture

Mailchimp demonstrates a solid security posture with enforced HTTPS, domain registration protections, and integration of CAPTCHA and monitoring tools like Bugsnag. The presence of consent management via OneTrust indicates compliance with GDPR and other privacy laws. However, the absence of DNSSEC and publicly available security policies or incident response contacts suggests room for enhancement. No vulnerabilities or exposed sensitive data were detected in the website content. The security score is high but could be improved by adopting additional DNS security measures and transparency in security governance.

Recommendations

  1. Enable DNSSEC to strengthen DNS security and prevent spoofing.
  2. Publish a dedicated security policy page outlining security practices and compliance.
  3. Implement and publicize a vulnerability disclosure program, including a security.txt file.
  4. Provide clear incident response contact channels for security issues.
  5. Continue maintaining and updating privacy and cookie consent mechanisms to align with evolving regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Mailchimp
Description
Mailchimp provides a marketing, automation, and email marketing platform that uses real-time behavior data and AI to help businesses convert more customers. It offers easy-to-use tools with free trial options.
Key services
Email marketing, Marketing automation, Website builder, Social media marketing, Audience management, Analytics and reporting, AI marketing tools, Content creation tools, Lead generation platform
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Google Analytics, FullStory, Optimizely, Bugsnag, AppFabric, OneTrust Cookie Consent, Qualtrics, BrightEdge
Frameworks
AppFabric
Platforms
Google Cloud (inferred from Google services usage), Intuit platform integration
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Domain locked with clientDeleteProhibited and related statuses
  • Use of CAPTCHA (Google reCAPTCHA)
  • Consent management via OneTrust
  • Error monitoring with Bugsnag

Analytics and tracking

Services
Google Analytics, FullStory, Optimizely, Segment
Tracking level
extensive
Privacy practices
good

Advertising

Tracking pixels
FullStory, Optimizely, Segment
Marketing tools
FullStory, Optimizely, Segment, OneTrust Cookie Consent
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 no blocking or WAF challenges.
  2. Content is rich, professional, and well-structured.
  3. Strong integration with major platforms and marketing tools.
  4. Good privacy and cookie compliance with consent mechanisms.
  5. No suspicious or malicious indicators found.
  6. WHOIS data supports legitimacy and long-term operation.
Technical notes

Notes

The website uses a modern, performant tech stack including JavaScript frameworks, Google Tag Manager, FullStory, Optimizely, and Segment for analytics and user experience optimization. Hosting is likely via Akamai CDN and Intuit's infrastructure, ensuring fast global delivery. The site is mobile-optimized with good accessibility and SEO practices. Technical debt appears low with current best practices in place, though enabling DNSSEC and publishing security documentation would further reduce risk. Overall, the technical infrastructure supports a scalable, secure, and user-friendly platform.
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. 81/100 −1Low20 findingsView report
  2. 82/100 +10Low20 findingsView report
  3. 72/100Medium22 findingsView report
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