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Security report for emailoctopus.com

EmailOctopus · Technology · United Kingdom

Low risk. 2 critical or high findings in SSL/TLS and DNS health.

Security score

85/100

Risk levelLow

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

EmailOctopus is a UK-based technology company specializing in providing affordable and easy-to-use email marketing solutions. Their platform offers a comprehensive suite of services including drag and drop email builders, segmentation, automation workflows, subscription forms, and landing pages. With over 100,000 organizations using their service, EmailOctopus holds a solid market position as a cost-effective alternative in the email marketing SaaS space. The company is legally registered as Three Hearts Digital Ltd and maintains a consistent brand presence across multiple social media channels and customer testimonials.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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

2 findings rated critical or high. Fix these first.

  1. 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 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

  2. DNS health

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

    • High

      Weak SPF Policy

      SPF record has permissive policy allowing any server to send email

      What to do: Use -all or ~all qualifier for better email security

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

Keep watching emailoctopus.com

This scan found 12 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

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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
75
Security headers
85
Email security
87
DNS health
70
Network security
100
GDPR outside view
95
Average
85

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

EmailOctopus operates on a SaaS subscription model targeting small to medium-sized businesses and organizations seeking efficient email marketing tools. Their competitive advantage lies in affordability, ease of use, and a rich feature set that includes automation and segmentation. The company demonstrates growth through customer case studies and a strong affiliate and rewards program. Their partnership ecosystem includes integrations with Amazon SES and other email delivery services. The business maintains transparency with comprehensive legal and privacy documentation, enhancing customer trust.

Security posture

The website enforces HTTPS and employs domain security measures such as clientDeleteProhibited and clientTransferProhibited statuses. However, DNSSEC is not enabled, representing a minor security gap. The site uses multiple tracking and advertising pixels, managed via Google Tag Manager, with a cookie consent mechanism in place, indicating good privacy compliance. No explicit security policy or incident response information is published, and no vulnerability disclosure program or security.txt file is found. Security headers are not explicitly detected in the provided data, suggesting room for improvement in HTTP security configurations.

Recommendations

  1. Enable DNSSEC to enhance DNS security and prevent spoofing.
  2. Publish a dedicated security policy and incident response contact information to improve transparency and readiness.
  3. Implement and enforce security HTTP headers such as Content-Security-Policy, X-Content-Type-Options, and Strict-Transport-Security.
  4. Establish a vulnerability disclosure program or publish a security.txt file to encourage responsible reporting.
  5. Continue to maintain and improve privacy compliance and cookie consent mechanisms to align with evolving regulations.

Contact details published on the site

Addresses
Legal name
Three Hearts Digital Ltd
VAT number
GB260002761
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
EmailOctopus
Description
EmailOctopus provides simple and affordable email marketing tools including drag and drop email builder, analytics, bounce/complaint tracking, segmentation, automation, forms, and landing pages.
Key services
Email marketing campaigns, Email list management, Drag and drop email builder, Segmentation and personalization, Automation workflows, Subscription forms and landing pages
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Cloudflare DNS, Google Tag Manager, Microsoft Clarity, LinkedIn Insight Tag, Facebook Pixel, Bing UET, Quora Pixel, Reddit Pixel, Twitter Universal Website Tag
Frameworks
Bootstrap (implied by navbar classes), Helpscout widget
Platforms
AWS (implied by keywords and service references)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • ClientDeleteProhibited and clientTransferProhibited domain status
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Analytics, Microsoft Clarity
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google Ads, LinkedIn Ads, Facebook Ads, Bing Ads, Quora Ads, Reddit Ads, Twitter Ads
Tracking pixels
Google Analytics (via GTM), Microsoft Clarity, LinkedIn Insight Tag, Facebook Pixel, Bing UET, Quora Pixel, Reddit Pixel, Twitter Universal Website Tag
Marketing tools
Helpscout chat widget
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 mechanisms.
  2. Strong presence of privacy and cookie policies with consent mechanisms.
  3. Multiple legal pages are present and easily accessible.
  4. Comprehensive use of modern tracking and advertising technologies.
  5. No phone numbers explicitly labeled as company contact found.
  6. Contact email found in JSON-LD and footer: contact@emailoctopus.com
  7. Social media presence is strong with official accounts on Twitter (X), Facebook, LinkedIn, Instagram, and YouTube.
  8. Forms collect email addresses for sign-up with proper labeling and placeholders.
  9. No explicit security policy or incident response information published.
  10. No vulnerability disclosure or security.txt file detected.
Technical notes

Notes

The website is built with modern web technologies including JavaScript and uses a variety of third-party analytics and advertising scripts such as Google Tag Manager, Microsoft Clarity, and multiple ad network pixels. Hosting and DNS are managed via Cloudflare, providing performance and security benefits. The site is mobile-optimized with responsive design and good accessibility features. The CMS is custom or not explicitly identified. Performance is fast, and SEO practices are well implemented with proper meta tags and structured data. The technical infrastructure supports a scalable SaaS platform with integrations and customer support widgets.
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. 85/100Low21 findingsView report
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