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Security report for mandrillapp.com

The Rocket Science Group · Technology · N/A

Partial score · DNS & email only

75/100

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

Mandrill is a transactional email service offered as a paid add-on to Mailchimp, enabling clients to send personalized, triggered emails such as password resets and order confirmations. The service is positioned as a key communication tool for Mailchimp users, leveraging integration to enhance customer engagement. The website infrastructure is built on nginx and PHP, with legacy jQuery for client-side scripting, hosted on Amazon AWS infrastructure as indicated by DNS records. Security posture is moderate with a valid SSL certificate and HSTS enabled, but lacks modern TLS protocol support and advanced DNS security features. Privacy and terms of service are linked to Mailchimp's main site, but no cookie consent mechanism or explicit security policies are present on the Mandrill login page. Overall, the site demonstrates a basic but functional digital presence aligned with its business model.

Scanned

3 of 7 checks could not complete. The site may be unreachable or blocking automated scans, so the results below cover only what could be checked. Try a rescan later.

NIS2 and GDPR posture

NIS2 outside view
Not assessed
GDPR outside view
Not assessed

Both readouts depend on the site's pages, which could not be loaded in this scan.

Priority findings

No critical or high findings. These medium findings are worth fixing next.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Medium

      No DKIM record found (common selectors)

      DKIM adds cryptographic signatures to emails

      What to do: Configure DKIM with your email provider

  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.

    • Medium

      SSL Certificate Expires Within 90 Days

      SSL certificate expires in 38 days

      What to do: Plan SSL certificate renewal

    • Medium

      Mixed Content Detected

      4 resources loaded over insecure HTTP

      What to do: Ensure all resources (images, scripts, stylesheets) are loaded over HTTPS

  3. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • Medium

      DNSSEC Not Enabled

      DNSSEC is not configured for this domain

      What to do: Enable DNSSEC to prevent DNS spoofing attacks

      • CAPEC-142
      • RFC 4033
      • RFC 4035

Keep watching mandrillapp.com

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  • TLS certificates and expiry
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  • Exposed services
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  • 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
Email security
85
DNS health
85
Network security
100
Average
88
After the cap
75

Not counted

  • Security headers: did not complete in this scan.
  • GDPR outside view: did not complete in this scan.
  • 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

Mandrill operates within the technology sector as an important entity under The Rocket Science Group, serving Mailchimp clients who require transactional email capabilities. Its business model is subscription-based, integrated tightly with Mailchimp's platform, targeting businesses needing reliable triggered email services. The company benefits from brand consistency and trust signals such as registered trademarks and secure connections. However, the lack of direct contact information and limited marketing tools on the login page suggest a focus on existing customers rather than broad customer acquisition. The partnership with Mailchimp is a critical component of its market positioning and operational ecosystem.

Security posture

The current security posture shows adherence to several best practices including secure cookie flags, HSTS, and content security policies restricting framing. The SSL certificate is valid but the absence of TLS 1.2 or higher protocols is a notable gap, potentially exposing communications to weaker encryption standards. DNS security is minimal with no DNSSEC or CAA records configured. There is no visible security policy or incident response contact information, which could hinder transparency and responsiveness in case of security events. The site does not implement a cookie consent mechanism, which may impact compliance with privacy regulations such as GDPR. Overall, the security maturity is moderate but could be significantly improved with updated protocols and enhanced policy disclosures.

Recommendations

  1. Upgrade SSL/TLS configuration to support TLS 1.2 and TLS 1.3 protocols for stronger encryption.
  2. Implement a cookie consent banner to comply with GDPR and other privacy regulations.
  3. Publish a dedicated security policy and provide incident response contact channels on the website.
  4. Enable DNSSEC and configure CAA records to enhance DNS security and certificate issuance control.
  5. Add a security.txt file and vulnerability disclosure policy to improve transparency and trust.
Technical notes

Notes

The website is hosted on Amazon AWS infrastructure with nginx as the web server and PHP for backend processing. The frontend uses an outdated jQuery 1.7.1 library, indicating potential technical debt and modernization opportunities. Performance metrics indicate fast load times, but mobile optimization and accessibility are basic, suggesting room for improvement in user experience. SEO optimization is minimal with no structured data or Open Graph metadata present. The absence of modern security protocols and DNS security features represents technical risks that could impact business operations and customer trust if not addressed.
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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