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Security report for sealsubscriptions.com

Seal Subscriptions · E-commerce · N/a

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

66/100

Risk levelMedium

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

Seal Subscriptions is a specialized subscription app designed for Shopify merchants, enabling them to implement recurring revenue models such as subscription boxes, automatic payments, and product swaps. The company positions itself as a leading solution in the Shopify ecosystem, boasting over 30,000 merchants and 1,800+ reviews with an average rating of 4.9. The website reflects a professional and modern e-commerce SaaS business focused on enhancing customer lifetime value and retention for online stores. Technically, the site employs modern web technologies including lazy loading, SVG graphics, and Google Tag Manager for analytics, ensuring fast performance and excellent mobile responsiveness. Security posture is good with HTTPS enforced and no visible vulnerabilities, though explicit security headers are not detected. Privacy compliance is partial, with a privacy policy present but lacking a cookie consent mechanism and terms of service. The absence of WHOIS data for the domain introduces some trust concerns, but the strong Shopify app presence and customer testimonials mitigate this risk. Overall, the business appears credible and well-positioned in the e-commerce subscription market.

Scanned

This is an earlier scan of sealsubscriptions.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

5 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 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

  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 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

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

Keep watching sealsubscriptions.com

This scan found 23 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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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
30
Email security
60
DNS health
80
Network security
100
GDPR outside view
53
Average
66

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

Seal Subscriptions operates in the e-commerce sector, targeting Shopify merchants who want to add subscription capabilities to their stores. Its business model is SaaS-based, generating revenue through app subscriptions and usage fees. The company leverages its strong market position as a top-rated Shopify app with extensive customer reviews and endorsements. Key competitive advantages include a rich feature set tailored for subscription management, automatic recurring billing, and customer retention tools. The partnership ecosystem includes Shopify and notable customers like postix.club. Growth indicators include a large user base and positive customer feedback. The company focuses on delivering value through increased revenue, reduced churn, and operational automation for merchants.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and no exposed sensitive data. However, the lack of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options suggests room for improvement. No vulnerable libraries or insecure scripts are detected. Privacy compliance is partial; the site has a privacy policy but lacks a cookie consent mechanism and terms of service, which are important for GDPR and other regulations. Incident response and security policy information are not publicly available, indicating a potential gap in transparency. Overall, the security posture is good but could be enhanced by adding security headers, cookie consent, and publishing security policies.

Recommendations

  1. Implement and publish a comprehensive cookie policy with a user consent mechanism to comply with privacy regulations.
  2. Add explicit security headers such as CSP, HSTS, and X-Frame-Options to strengthen defense against common web attacks.
  3. Publish a security policy and incident response contact information to improve transparency and trust.
  4. Create and publish terms of service to clarify user agreements and legal protections.
  5. Consider adding a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Seal Subscriptions
Description
Start your subscription business on Shopify with Seal Subscriptions, the Shopify subscriptions app and increase your revenue with auto-charging subscriptions, subscription boxes, recurring products or build a custom subscription model.
Key services
Subscription management, Automatic recurring payments, Subscription boxes, Product swaps, Loyalty discounts, Cancellation flow control
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, IntersectionObserver API, SVG graphics, Lazy loading images and iframes
Platforms
Shopify
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries
  • Secure external script loading

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Google Analytics (via Google Tag Manager)
Transparency
basic

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 professional design.
  2. No WAF or blocking mechanisms detected.
  3. WHOIS data is missing, indicating possible unregistered domain or privacy protection.
  4. Privacy policy is present but cookie policy and terms of service are missing.
  5. Contact information includes company email and phone number with clear context.
  6. Strong trust signals from Shopify app store presence and customer reviews.
  7. Good technical implementation with modern lazy loading and responsive design.
  8. Security headers are not explicitly detected; HTTPS is enforced.
  9. No visible forms collecting user data on the main page.
  10. Social media presence limited to YouTube channel.
Technical notes

Notes

The website is built with modern web standards, utilizing JavaScript, SVG graphics, and lazy loading techniques to optimize performance and user experience. Google Tag Manager is used for analytics, indicating a structured approach to data collection. The site is mobile-optimized with responsive design and accessibility considerations such as skip links and keyboard navigation support. No CMS is explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not available. Performance is fast with efficient resource loading. Technical risks are minimal but could be reduced further by implementing security headers and formal privacy 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

Earlier scans of this domain

  1. 66/100Medium33 findingsView report
  2. 66/100Medium32 findingsView report
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