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Security report for sendfox.com

Sumo Group, Inc. · Technology · N/a

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

69/100

Risk levelMedium

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

SendFox is a technology company providing affordable and simple email marketing tools primarily targeting content creators and small businesses. Their platform offers email campaigns, automations, and landing pages with a focus on ease of use and affordability, including a free plan and lifetime deal options. The website is professionally designed with good content quality and clear navigation, optimized for mobile users. Technically, the site uses modern technologies including Google Analytics, Google Tag Manager, ProfitWell for subscription analytics, Stripe for payments, and a chatbot for support. Hosting and domain registration are stable and consistent with the business history. Security posture is good with HTTPS enforced and domain status protections, though DNSSEC is not enabled and security headers are not detected, indicating room for improvement. Privacy compliance is partially met with clear privacy and terms of service pages but lacks a cookie consent mechanism. Overall, the website is trustworthy and professional with moderate to good security and privacy practices.

Scanned

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

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

6 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 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

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

Keep watching sendfox.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

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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
77
Security headers
15
Email security
85
DNS health
85
Network security
100
GDPR outside view
53
Average
69

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

SendFox operates in the competitive email marketing SaaS space, focusing on content creators and small businesses as their target audience. Their business model includes free plans and lifetime deals, leveraging partnerships such as with AppSumo for distribution and marketing. The company is part of Sumo Group, Inc., founded in 2008, indicating an established presence. The platform emphasizes simplicity and affordability as competitive advantages. The website features testimonials from users on AppSumo and Trustpilot, enhancing trust. Marketing efforts include tracking and analytics via Google and ProfitWell, and payment processing through Stripe. The partnership ecosystem includes AppSumo, a key channel for customer acquisition. Growth indicators include a user base of over 170,000 people and active community engagement.

Security posture

The website demonstrates a moderate to good security maturity level. HTTPS is enforced, and domain registration statuses prevent unauthorized transfers or deletions. However, DNSSEC is not enabled, which could improve DNS security. No explicit security headers such as Content-Security-Policy or X-Frame-Options were detected, which are recommended best practices. No exposed sensitive data or vulnerable libraries were identified in the HTML content. The site uses secure forms with CSRF tokens for email signup. Incident response and security policies are not publicly disclosed, which is a gap in transparency. Privacy compliance is partial, with privacy and terms pages present but no cookie consent mechanism. Overall, the security posture is adequate but could be enhanced with additional headers, DNSSEC, and published security policies.

Recommendations

  1. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
  2. Implement and publish security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Add a cookie consent banner or mechanism to comply fully with GDPR and other privacy regulations.
  4. Publish explicit security and incident response policies to improve transparency and trust.
  5. Consider adding direct contact information such as support emails or phone numbers to improve user trust and support accessibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sumo Group, Inc.
Description
Grow your audience with email campaigns, automations, and landing pages that integrate your content.
Key services
Email campaigns, Automations, Landing pages, Newsletter tools
Content quality
good
Branding
consistent

Technology

Stack
Google Analytics, Google Tag Manager, ProfitWell, Stripe, jQuery, Bootstrap Carousel, Chatbase chatbot
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • ClientDeleteProhibited, clientTransferProhibited, clientUpdateProhibited domain statuses

Analytics and tracking

Services
Google Analytics, Google Tag Manager, ProfitWell
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
ProfitWell
Marketing tools
SendFox email marketing platform, ProfitWell for subscription analytics
Transparency
good

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website offers a clear value proposition for email marketing targeting content creators.
  2. Use of multiple trusted third-party services for analytics and payments.
  3. No direct contact emails or phone numbers publicly listed; contact via form only.
  4. No explicit cookie consent banner found despite GDPR relevance.
  5. Security headers not detected in provided data; opportunity for improvement.
  6. Domain registration is stable and not privacy protected, indicating transparency.
Technical notes

Notes

The website uses a modern technology stack including Google Analytics, Google Tag Manager, ProfitWell for subscription analytics, Stripe for payment processing, and a chatbot from Chatbase. The front-end uses Bootstrap for responsive design and jQuery for interactivity. Hosting appears to be on AWS infrastructure, indicated by Amazon Registrar and AWS DNS servers. Performance is moderate with asynchronous loading of scripts and optimized images. Mobile optimization is good with responsive layouts and mobile-specific content. SEO is supported by proper meta tags, Open Graph tags, and canonical URLs. Accessibility is basic but present, with semantic HTML and alt attributes on images. There is no detected CMS, suggesting a custom or proprietary platform. Overall, the technical infrastructure is solid with room for improvements in security headers and privacy compliance.
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. 69/100 +12Medium31 findingsView report
  2. 57/100Medium26 findingsView report
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