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Security report for expressional.social

Chriwi Holding ApS · Technology · Denmark

Low risk. 3 critical or high findings in GDPR outside view and SSL/TLS.

Security score

76/100

Risk levelLow

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

Expressional.social is an independent Mastodon server hosted in Copenhagen, Denmark, operated by Chriwi Holding ApS. The platform offers a federated social networking service focusing on safety, transparency, and security, welcoming users of all languages and federating primarily with other Danish servers. The website presents a modern and functional interface built on the Mastodon platform version 4.4.0-nightly, leveraging React and standard web technologies. The technical infrastructure is solid with HTTPS enforced and Cloudflare as registrar and DNS provider, though DNSSEC is not enabled. Security posture is adequate but could be improved by adding security headers and formal security policies. Privacy compliance is partial, with a privacy policy present but lacking cookie consent mechanisms and terms of service. No direct contact information or incident response contacts are published, which limits user support transparency. Overall, the site is trustworthy and professionally maintained, suitable for general audiences without adult content.

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

3 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 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

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Keep watching expressional.social

This scan found 18 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
75
Email security
72
DNS health
80
Network security
100
GDPR outside view
53
Average
76

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 business operates in the technology sector as a social networking service provider within the Fediverse ecosystem. Its market position is that of a small, independent Mastodon server targeting users interested in decentralized social media, particularly within Denmark. The business model revolves around providing free access to Mastodon services with open registrations and federated connectivity. Revenue streams and monetization are not evident from the site. The company benefits from a transparent domain registration and a clear focus on security and community safety. Partnerships or subsidiaries are not indicated. Growth indicators include active user statistics and ongoing software updates. The platform's competitive advantage lies in its focus on safety and federation with Danish servers, appealing to users seeking localized and secure social networking.

Security posture

The security maturity level is moderate. The site enforces HTTPS and uses a reputable registrar with domain transfer protection. However, DNSSEC is not enabled, and no advanced security headers are detected. There is no published security policy or incident response information, which could hinder timely handling of security incidents. No vulnerabilities or exposed sensitive data were detected in the content. Compliance with GDPR is partial, with a privacy policy present but lacking cookie consent and terms of service. The absence of contact information for security incidents is a gap. Overall, the security culture appears cautious but could benefit from formalized policies and enhanced technical controls.

Recommendations

  1. Enable DNSSEC to improve domain security and prevent DNS spoofing.
  2. Implement and publish a comprehensive security policy and incident response plan on the website.
  3. Add cookie consent mechanisms to comply with privacy regulations and improve user trust.
  4. Publish terms of service to clarify user rights and platform rules.
  5. Add explicit contact information for security and abuse reporting to enhance transparency and responsiveness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Chriwi Holding ApS
Description
Mastodon server hosted in Copenhagen, Denmark, by a dane. All languages are welcome, Federated with other Danish servers. Focus on safety, transparency and security.
Key services
Mastodon social networking, federation with other servers, user account creation and login
Content quality
good
Branding
consistent

Technology

Stack
Mastodon 4.4.0-nightly, React, JavaScript, CSS, HTML5, WebSockets
Frameworks
React
Platforms
Fediverse, Mastodon
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • clientTransferProhibited domain status

Analytics and tracking

Services
Datadog (status page)
Tracking level
minimal
Privacy practices
basic

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is a Mastodon social networking server hosted in Denmark
  2. Content is accessible and not blocked by WAF
  3. No explicit privacy or cookie consent mechanisms detected
  4. No contact emails or phone numbers explicitly provided
  5. Focus on safety, transparency, and security stated but no formal security policy published
  6. Uses modern web technologies and a nightly Mastodon version
  7. No advertising or affiliate marketing detected
  8. Social media links are not explicitly provided on the page
  9. WHOIS data supports legitimacy and transparency
Technical notes

Notes

The website is built on a modern Mastodon platform version with React-based UI components, ensuring a responsive and user-friendly experience. Hosting and DNS are managed via Cloudflare, providing reliable infrastructure and domain protection. Performance is moderate with no major issues detected, and mobile optimization is good. SEO is basic with proper meta tags and Open Graph data but could be enhanced. Accessibility features are minimal but present. The site does not use a CMS, reducing complexity but requiring manual updates. Technical risks include lack of DNSSEC and missing security headers, which could be addressed to reduce attack surface. Overall, the technical infrastructure is solid but has room for modernization and security hardening.
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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