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Security report for ffletter.com

GoFox - Tecnologias de Informação · Technology · Portugal

High risk. 10 critical or high findings in Network security, Security headers and 3 other checks.

Security score

46/100

Risk levelHigh

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

FFLetter is an online email marketing platform operated by GoFox - Tecnologias de Informação, targeting businesses and marketers primarily in Portuguese-speaking markets. The platform offers tools for newsletter creation, subscription form integration, campaign analytics, and anti-spam enforcement. The website is professionally designed with clear navigation and mobile optimization, reflecting a mature digital presence. Technically, the site uses established libraries such as jQuery and Swiper.js, integrates Google reCAPTCHA for bot protection, and employs Google Analytics for user tracking. Security posture is solid with HTTPS enforced and anti-spam policies actively monitored using AI, though some improvements in security headers and library updates are recommended. The absence of WHOIS data for the domain is a notable concern, impacting trust and business credibility. Overall, the site is functional, compliant with privacy regulations, and positioned as a niche SaaS provider in the email marketing industry.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 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

10 findings rated critical or high. Fix these first.

  1. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  2. 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';…

  3. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

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

Keep watching ffletter.com

This scan found 27 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.

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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
62
Security headers
20
Email security
75
DNS health
70
Network security
0
GDPR outside view
50
Average
46

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 · found on this site
  • 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

FFLetter operates as a SaaS provider specializing in email marketing solutions with a focus on ease of integration and anti-spam compliance. The business model centers on subscription-based access to marketing tools, targeting small to medium enterprises and marketing professionals. The company maintains a partnership ecosystem with GoFox, which provides web design and technology services. The platform's competitive advantage lies in its AI-driven anti-spam monitoring and comprehensive campaign analytics. While the website content and social media presence support a credible market position, the lack of transparent domain registration data introduces risk. Growth potential exists in expanding language support and enhancing security and compliance features.

Security posture

The website demonstrates a moderate to strong security posture with HTTPS enabled and integration of Google reCAPTCHA to mitigate automated abuse. The presence of an explicit anti-spam policy monitored by AI indicates proactive security governance. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces defense-in-depth. The use of an outdated jQuery version may expose the platform to known vulnerabilities. No incident response contact or vulnerability disclosure policy is published, which limits transparency and readiness. Privacy compliance is well addressed with cookie consent mechanisms and GDPR-aligned policies. Overall, the security maturity is good but can be enhanced by addressing these gaps.

Recommendations

  1. Implement and enforce security headers including CSP, HSTS, and X-Frame-Options to strengthen browser security.
  2. Update jQuery and other third-party libraries to the latest secure versions to mitigate known vulnerabilities.
  3. Publish an incident response contact and a vulnerability disclosure policy or security.txt file to improve transparency and security posture.
  4. Add clear company contact information including verified emails and phone numbers to enhance business credibility and user trust.
  5. Enhance accessibility features to comply with standards and improve user experience for all visitors.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
GoFox - Tecnologias de Informação
Description
Software Online de email marketing, criação de newsletters, Formulários, Integração com as Redes Sociais. Estatísticas sobre campanhas e política de utilização.
Key services
Email marketing software, Newsletter creation, Subscription/removal form integration, Campaign statistics and analytics
Content quality
good
Branding
consistent

Technology

Stack
jQuery 1.6.2, Swiper.js, Google reCAPTCHA, Google Analytics, CSS stylesheets
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Google reCAPTCHA integration on forms
  • Anti-spam policy with AI monitoring
  • Cookie consent mechanism with granular controls

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
FFLetter email marketing platform, Google reCAPTCHA
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is in Portuguese with some English language options.
  3. Strong focus on email marketing services with clear anti-spam policies.
  4. Cookie consent and privacy policies are implemented with good compliance.
  5. No direct company contact emails or phone numbers found on the main page.
  6. Social media presence is linked to GoFox, the parent company.
  7. WHOIS data is missing, which is unusual and reduces domain trust.
  8. Website uses older jQuery version which may pose security risks.
  9. Google Analytics and reCAPTCHA are used for analytics and bot protection.
  10. No explicit security headers detected in the HTML content.
Technical notes

Notes

The website is built using classic web technologies including jQuery 1.6.2, Swiper.js for sliders, and Google services for analytics and bot protection. The HTML structure is valid with proper meta tags for SEO and viewport settings for mobile responsiveness. CSS is modular and includes print and handheld media queries. The site loads asynchronously Google reCAPTCHA and Google Analytics scripts, optimizing performance. However, the use of an outdated jQuery version indicates technical debt and potential security risk. Hosting provider details are not disclosed. Performance is moderate with some room for optimization. The cookie consent mechanism is well implemented with granular user controls stored in localStorage. Overall, the technical infrastructure is stable but would benefit from modernization and enhanced security controls.
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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