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Security report for lemmynsfw.com

Lemmy NSFW · Other · N/a

Low risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

77/100

Risk levelLow

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

Lemmy NSFW is a specialized federated social platform instance dedicated exclusively to adult content and communities. It operates on the Lemmy platform, providing a moderated environment for users aged 18 and above to share and discuss NSFW material. The platform emphasizes community rules to prevent illegal content and maintain respectful interactions. Technically, it leverages Cloudflare for DNS and CDN services and uses Bootstrap for UI styling, offering multiple alternative user interfaces for accessibility. Security practices include HTTPS enforcement and domain transfer protection, though DNSSEC is not enabled. Privacy compliance is partial, with a comprehensive privacy policy available but lacking cookie consent mechanisms. Overall, the site presents a moderate security posture with room for improvement in transparency and technical safeguards.

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

4 findings rated critical or high. Fix these first.

  1. 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

    • 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

  2. 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 lemmynsfw.com

This scan found 16 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

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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
80
Email security
70
DNS health
85
Network security
100
GDPR outside view
50
Average
77

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 targets adult users interested in NSFW content within a federated social network model. Its business model relies on community engagement and donations rather than advertising or affiliate marketing. The platform's niche positioning as an adult-only Lemmy instance differentiates it from general social networks. The presence of active moderators and clear rules supports a trustworthy community environment. External integrations with Matrix and Mastodon indicate a broader federated ecosystem. The lack of phone or physical contact details suggests a primarily online-only operation. Growth potential lies in expanding user base and improving technical and security features.

Security posture

Lemmy NSFW demonstrates a reasonable security posture with HTTPS enforced and domain transfer protections in place. The absence of DNSSEC is a minor vulnerability that could be addressed to enhance DNS security. No explicit security or incident response policies are published, which limits transparency. The platform uses captcha for registration to mitigate spam and bot attacks. No known vulnerabilities or exposed sensitive data were detected in the analysis. The security score is moderate, reflecting good baseline practices but lacking advanced security disclosures and policies.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS integrity and security.
  2. Publish a dedicated security policy and incident response contact information.
  3. Implement a cookie policy with user consent mechanisms to enhance privacy compliance.
  4. Consider adding a vulnerability disclosure policy or security.txt file.
  5. Enhance accessibility features and SEO optimization for better user experience and discoverability.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Lemmy NSFW
Description
NSFW (18+) only instance for Lemmy, a federated social platform focused on adult content communities.
Key services
Federated social networking, NSFW content hosting and community moderation, Multiple UI options for user access
Content quality
good
Branding
consistent

Technology

Stack
Lemmy platform, Cloudflare DNS, Bootstrap CSS, JavaScript, Matrix for chat
Frameworks
Bootstrap
Platforms
Lemmy federated social platform
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • ClientTransferProhibited domain status
  • Moderation policies against illegal content
  • Captcha enabled for registration

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is a niche adult content federated social platform.
  2. Strong community moderation and clear rules against illegal content.
  3. Multiple alternative UI options provided for user convenience.
  4. No explicit privacy or cookie banners detected on main page.
  5. Contact information includes email and Matrix chat room.
  6. No phone numbers or physical addresses found.
  7. No security.txt or vulnerability disclosure policy found.
  8. No advertising or tracking services detected.
  9. Content is strictly adult and requires age affirmation.
Technical notes

Notes

The website is built on the Lemmy federated social platform, utilizing Bootstrap for responsive design and JavaScript for dynamic content. Hosting and DNS are managed via Cloudflare, providing CDN and security benefits. The site offers multiple alternative user interfaces, indicating a flexible and user-centric design approach. Performance is moderate, with no major issues detected. Accessibility is basic but could be improved. SEO is functional but minimal, with proper meta tags and Open Graph data present. No analytics or tracking scripts were detected, aligning with privacy-conscious design. Overall, the technical infrastructure is solid but could benefit from modernization and enhanced security features.
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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