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Security report for vhs.social

vhs.social · Education · Germany

Medium risk. 4 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

59/100

Risk levelMedium

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

vhs.social is a small Mastodon instance focused on providing a federated social networking platform for Volkshochschulen, adult education centers in Germany. The website leverages the Mastodon open source platform (version 4.3.8) and targets a general audience interested in educational social networking within the Fediverse. The business model centers on community hosting and participation rather than commercial services. Technically, the site uses modern JavaScript frameworks and SVG graphics, with good mobile optimization and basic accessibility. Security posture is moderate with HTTPS enforced and domain transfer protection, but lacks DNSSEC and security headers. Privacy compliance is partial with a privacy policy present but no cookie consent or terms of service. No direct contact information or incident response details are provided, limiting transparency. Overall, the site is trustworthy and professionally presented but could improve security and compliance aspects.

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

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 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 Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

  3. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Weak SPF Policy

      SPF record has permissive policy allowing any server to send email

      What to do: Use -all or ~all qualifier for better email security

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

Keep watching vhs.social

This scan found 25 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
72
Security headers
75
Email security
55
DNS health
60
Network security
40
GDPR outside view
53
Average
59

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention vhs.social, from OffSeq Breach.

No leaked records found

Breach holds no records for vhs.social right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

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 positions itself as a niche Mastodon server serving the German adult education sector, leveraging the federated social network model. Its competitive advantage lies in community focus and open source technology use. Revenue streams are likely minimal or non-commercial, focusing on community service. The target customers are individuals affiliated with Volkshochschulen and the broader Fediverse community. Growth indicators include recent domain registration and active user count of 11. The partnership ecosystem is limited with no explicit partners listed. Strategic observations suggest opportunities to enhance trust and compliance to attract more users and improve retention.

Security posture

The security maturity level is moderate. HTTPS is enforced, and domain transfer protection is enabled, which are positive indicators. However, the absence of DNSSEC and security headers such as Content-Security-Policy and X-Frame-Options represents gaps. No vulnerability disclosure or incident response contacts are published, which could hinder timely security issue reporting and resolution. Privacy compliance is partial, lacking cookie consent mechanisms. No exposed sensitive data or vulnerable libraries were detected. Overall, the security posture is adequate for a community server but should be enhanced to meet higher standards and regulatory requirements.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and integrity.
  2. Implement standard security headers (CSP, X-Frame-Options, X-Content-Type-Options) to mitigate common web attacks.
  3. Add a cookie policy and consent mechanism to comply with privacy regulations.
  4. Publish clear contact information including incident response and abuse contacts to improve transparency and trust.
  5. Consider adding a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
vhs.social
Description
Die Volkshochschulen im Fediverse. Hätten Sie uns nicht zugetraut, gelle? 😉
Key services
Mastodon social networking, Federated social media participation
Content quality
good
Branding
consistent

Technology

Stack
Mastodon 4.3.8, JavaScript, React (implied by React Helmet and chunked JS), SVG graphics
Frameworks
Mastodon, React
Platforms
Fediverse, Mastodon
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

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

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 Mastodon social network instance focused on Volkshochschulen in Germany
  2. Content is accessible and not blocked by WAF
  3. No forms detected on the explore page for data collection
  4. No explicit contact emails or phone numbers found
  5. Privacy policy present but cookie policy and terms of service missing
  6. No security.txt or vulnerability disclosure found
  7. No advertising or tracking scripts detected
  8. Uses Mastodon open source platform version 4.3.8
  9. Good mobile optimization and basic accessibility features
Technical notes

Notes

The website is built on Mastodon 4.3.8, using React and modern JavaScript. It serves content with SVG logos and uses chunked CSS and JS files for performance. Hosting appears stable with DNS hosted on kasserver.com and domain registered via united-domains GmbH. Performance is moderate with good mobile responsiveness and basic accessibility. SEO is basic with proper meta tags and Open Graph data. No CMS detected, indicating a custom or platform-specific deployment. Technical risks include lack of DNSSEC and missing security headers. Modernization opportunities include enhancing security configurations and adding privacy compliance 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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