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Security report for ohai.social

ohai.social team · Technology · N/a

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

Security score

66/100

Risk levelMedium

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

ohai.social is an independent Mastodon server providing a decentralized social networking platform within the fediverse. It offers a cozy, fast, and secure environment for users to participate in social media activities, emphasizing openness and community. The platform is powered by Mastodon 4.5.0-nightly and uses modern web technologies including JavaScript modules and WebSockets for real-time streaming. The website demonstrates good technical maturity with responsive design, accessibility features, and solid security practices such as HTTPS and Content Security Policy with nonce. However, privacy compliance is basic, lacking cookie consent mechanisms and terms of service, which could be improved to meet broader regulatory requirements. Overall, the site is trustworthy and well-positioned within the decentralized social media niche.

Scanned

NIS2 and GDPR posture

GDPR outside view
58/ 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

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

Keep watching ohai.social

This scan found 17 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
70
DNS health
80
Network security
40
GDPR outside view
58
Average
66

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

ohai.social operates as a small independent Mastodon instance targeting general users interested in decentralized social networking. Its business model revolves around hosting and community engagement rather than direct monetization. The platform benefits from open-source Mastodon software and maintains transparency about its administration team and active user base. The site links to partner domain ohai.is, indicating a close relationship. The absence of advertising and tracking tools suggests a privacy-conscious approach. The platform's competitive advantage lies in its community focus and technical reliability within the fediverse ecosystem.

Security posture

The website enforces HTTPS with strong SSL configuration and employs security headers including Content Security Policy with nonce, enhancing protection against common web attacks. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the lack of a published security policy or incident response contact limits transparency in handling security events. The absence of a vulnerability disclosure policy or security.txt file is a gap in proactive security management. Overall, the security posture is good but could be strengthened by formalizing incident response and disclosure processes.

Recommendations

  1. Implement a comprehensive cookie policy with user consent mechanisms to enhance privacy compliance.
  2. Publish clear terms of service to provide legal clarity and user expectations.
  3. Add a dedicated security policy page including incident response contacts to improve transparency.
  4. Consider publishing a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  5. Enhance privacy policy details to explicitly address GDPR and other data protection regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ohai.social team
Description
A cozy, fast and secure Mastodon server where everyone is welcome. Run by the folks at ohai.is.
Key services
Mastodon social networking, Profile directory, Trending posts and hashtags
Content quality
good
Branding
consistent

Technology

Stack
Mastodon 4.5.0-nightly, Ruby on Rails (implied), JavaScript ES modules, React (implied by JSX-like components), WebSockets for streaming API
Frameworks
Mastodon
Platforms
Fediverse
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • CSP nonce used
  • No exposed sensitive data in HTML

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
high

Key observations

  1. Website is a Mastodon instance providing decentralized social networking.
  2. Content is user-generated posts with social and political themes.
  3. No explicit contact emails or phone numbers found on main page.
  4. Privacy policy is present but basic; no cookie or terms of service found.
  5. No advertising or tracking scripts detected.
  6. Site uses modern web technologies and good security practices.
  7. WHOIS data is consistent and transparent.
Technical notes

Notes

The website uses Mastodon 4.5.0-nightly as its core platform, leveraging modern JavaScript ES modules and React-like components for UI rendering. It supports WebSocket streaming for real-time updates. The site is mobile-optimized with responsive CSS and accessibility features. Performance is moderate with efficient asset loading and caching strategies. No CMS other than Mastodon is detected. Hosting provider details are not explicit but the domain uses custom file hosting subdomain. The technical stack is modern and well-maintained, with opportunities to improve SEO and privacy compliance further.
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

Earlier scans of this domain

  1. 66/100Medium26 findingsView report
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