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Security report for subscribepage.io

MailerLite Inc · Technology · United States

Medium risk. 8 critical or high findings in Email security, Security headers and 2 other checks.

Security score

62/100

Risk levelMedium

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

The website subscribepage.io is associated with MailerLite Inc, a US-based company founded in 2021 that provides email marketing and landing page services. The current accessible content is an error page indicating the landing page is not found, which limits the ability to fully assess the website's offerings and policies. The technical infrastructure includes Bootstrap 4.1.3 and Cloudflare DNS, but lacks advanced security headers and DNSSEC. No privacy or cookie policies are present, and no contact or incident response information is available on the page. The domain registration data is consistent with the business identity and shows no suspicious patterns, supporting legitimacy. Overall, the website is currently in a minimal state with poor content quality and limited user engagement features.

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

8 findings rated critical or high. Fix these first.

  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.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  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 subscribepage.io

This scan found 24 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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  • 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
75
Security headers
15
Email security
60
DNS health
70
Network security
100
GDPR outside view
50
Average
62

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

MailerLite Inc operates in the technology sector, focusing on SaaS solutions for email marketing and landing page creation. The business model targets marketers and businesses seeking to grow email lists through landing pages. The domain age and registrant data align with a relatively new but legitimate business. The lack of visible policies and contact information on the landing page suggests either a temporary state or incomplete deployment. The company likely leverages its parent domain mailerlite.com for broader service offerings and customer engagement. There is no evidence of advertising or analytics integrations on this page, indicating minimal marketing activity here.

Security posture

The security posture of the website is basic with HTTPS assumed but not explicitly confirmed in the HTML content. No security headers such as Content-Security-Policy or Strict-Transport-Security are detected. DNSSEC is not enabled, which is a recommended security enhancement. The WHOIS data shows clientTransferProhibited status, which protects against unauthorized domain transfers. No incident response or vulnerability disclosure information is published. The absence of privacy and cookie policies indicates compliance gaps with GDPR and other privacy regulations. Overall, the security maturity is low, with recommendations to improve DNS security, implement security headers, and publish relevant policies.

Recommendations

  1. Enable DNSSEC to enhance DNS security and prevent spoofing.
  2. Implement and enforce HTTPS with proper SSL/TLS configuration.
  3. Add security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Publish comprehensive privacy and cookie policies to improve compliance and user trust.
  5. Provide clear contact and incident response information including security contact emails.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
MailerLite Inc
Description
The website subscribepage.io appears to be related to landing pages and email list growth, associated with MailerLite Inc, a company likely providing email marketing and landing page services.
Key services
Landing pages, Email list growth
Content quality
poor
Branding
consistent

Technology

Stack
Bootstrap 4.1.3, Cloudflare DNS
Frameworks
Bootstrap
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
poor

Security

Observed score
30/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
poor
User experience
poor
Content relevance
poor
Navigation
poor
Professionalism
poor
Trustworthiness
low

Key observations

  1. Website content is an error page indicating the landing page is not found.
  2. No privacy, cookie, or terms of service policies found on the page.
  3. No contact information or forms present on the page.
  4. Minimal external links, primarily to mailerlite.com and CDN resources.
  5. No analytics or tracking scripts detected.
  6. No security headers or advanced security configurations detected.
  7. Domain WHOIS data is consistent and legitimate.
  8. Website content quality is poor due to error page status.
  9. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website uses Bootstrap 4.1.3 for styling and Cloudflare for DNS services. The HTML is valid but minimal, serving an error page rather than functional content. No CMS or advanced frameworks are detected. Performance is moderate due to minimal content and external CDN usage. Mobile optimization is basic with responsive meta tags and Bootstrap grid usage. Accessibility features are minimal with no ARIA roles or landmarks detected. SEO optimization is poor due to lack of meta description, keywords, and structured data. The hosting provider is not explicitly identified beyond registrar and DNS services. Overall, the technical implementation is basic and requires enhancement for production readiness.
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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