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Security report for c64online.com

C64online.com · Technology · N/a

Medium risk. 6 critical or high findings in Email security, Security headers and 2 other checks.

Security score

68/100

Risk levelMedium

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

C64online.com is a niche online platform dedicated to preserving and providing access to classic Commodore 64 games and software through browser-based emulation. Founded in 2020, it offers a large library of over 7000 games playable without downloads, targeting retro gaming enthusiasts and the general public interested in vintage computing. The site operates on WordPress with a modern theme and integrates Google Adsense for monetization. It maintains an active community presence via Facebook and provides regular blog updates. Technically, the site is well-structured with good SEO and mobile optimization, though performance is moderate and accessibility is basic. Security is adequate with HTTPS enforced and domain transfer protection, but lacks DNSSEC and explicit security headers. Privacy compliance is basic with a privacy policy and terms of use present, but no cookie consent mechanism or detailed GDPR compliance indicators. Contact is available via a form, but no direct emails or phone numbers are published. Overall, the site is trustworthy and professional within its niche but could improve security and privacy practices.

Scanned

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. 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 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 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 c64online.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

Email alerts on material changes and an exportable JSON history of every change.

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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
50
Email security
60
DNS health
70
Network security
100
GDPR outside view
53
Average
68

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

The website occupies a specialized market segment focused on retro computing and gaming preservation. Its competitive advantage lies in the extensive library of Commodore 64 games accessible online for free, appealing to enthusiasts and casual users alike. The business model relies on advertising revenue and community support, with plans to expand to other Commodore platforms. The target audience includes retro gamers, collectors, and technology hobbyists. The site’s independent status and lack of corporate backing suggest a small-scale operation with potential for growth. Partnerships appear limited to social media engagement. The site’s consistent branding and content quality support its market position as a reliable resource for Commodore 64 emulation.

Security posture

The security posture of c64online.com is moderate. The site uses HTTPS with a valid SSL certificate, ensuring encrypted communications. The domain is registered with clientTransferProhibited status, reducing risk of unauthorized transfers. However, DNSSEC is not enabled, which could expose DNS spoofing risks. No explicit security headers such as Content-Security-Policy or X-Frame-Options were detected, which are recommended to mitigate common web attacks. There is no published security policy or incident response information, and no vulnerability disclosure or security.txt file found. The site does not appear to expose sensitive data or use vulnerable libraries based on the provided data. Overall, while basic security measures are in place, enhancements are recommended to strengthen defense and compliance.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Implement standard security headers (Content-Security-Policy, X-Frame-Options, X-Content-Type-Options) to mitigate common web vulnerabilities.
  3. Add a cookie consent mechanism to comply with privacy regulations and improve user transparency.
  4. Publish a clear security policy and incident response contact information to enhance trust and preparedness.
  5. Consider adding direct contact emails or phone numbers for business and security inquiries to improve communication channels.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
C64online.com
Description
C64online.com is dedicated to preserving and serving Commodore 64 games, SID music, applications, and more through free online emulation accessible via modern browsers without downloads or installations. The site hosts over 7000 classic C64 games and plans to expand to other Commodore platforms.
Key services
Online emulation of Commodore 64 games, Access to a large library of C64 software, Community engagement via Facebook group, Blog and news updates about retro computing
Content quality
good
Branding
consistent

Technology

Stack
WordPress 6.8.2, GeneratePress theme, jQuery 3.7.1, Google Adsense, Google Analytics, Cloudflare DNS
Frameworks
WordPress
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • Domain status clientTransferProhibited

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Adsense
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is rich with a large library of Commodore 64 games available for online play.
  3. Site uses WordPress CMS with a modern theme and plugins.
  4. Advertising is primarily via Google Adsense.
  5. No direct company contact emails or phone numbers found; contact is via form.
  6. No explicit cookie consent mechanism detected.
  7. Security headers are not explicitly present; DNSSEC is not enabled.
  8. Privacy policy and terms of use pages are present but basic.
  9. Social media presence on Facebook is active.
  10. No adult or questionable content detected.
Technical notes

Notes

The website is built on WordPress 6.8.2 using the GeneratePress theme and several plugins including Rate My Post, Favorites, and Sassy Social Share. It uses jQuery 3.7.1 and integrates Google Adsense and Google Analytics for advertising and tracking. The site is hosted behind Cloudflare DNS but hosting provider is not explicitly identified. Performance is moderate with responsive design and mobile optimization rated good. SEO is well implemented with meta tags, Open Graph, and JSON-LD structured data. Accessibility features are basic but present. There is some technical debt in missing security headers and lack of DNSSEC. Overall, the technical infrastructure is solid for a small independent site but could benefit from security and privacy enhancements.
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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