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Security report for umbracocommunity.social

Umbraco Community Mastodon · Technology · N/a

Medium risk. 5 critical or high findings in Email security, GDPR outside view and 1 other check.

Security score

71/100

Risk levelMedium

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

The Umbraco Community Mastodon website is a niche social networking platform dedicated to the Umbraco CMS community, leveraging the Mastodon open-source federated social network software. It serves a small but active user base focused on community engagement and content sharing related to Umbraco CMS. The platform is community-driven and does not appear to be commercial in nature. Technically, the site uses modern web technologies including React, ES modules, WebSockets, and supports progressive web app features. The site is mobile optimized and provides a good user experience with clear navigation and consistent branding. Security posture is generally good with HTTPS enforced and no exposed sensitive data, but lacks some security headers and cookie consent mechanisms. Privacy compliance is basic with a privacy policy present but no cookie or terms of service pages. No contact emails or phone numbers are publicly listed, which is common for community-run platforms. Overall, the domain appears legitimate despite limited WHOIS data due to privacy protection and TLD limitations. The site is safe for general audiences and free from adult or explicit content.

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

5 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. 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

  3. 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
    • High

      Weak SSL Key Length

      SSL certificate uses 384-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 umbracocommunity.social

This scan found 21 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
52
Security headers
80
Email security
60
DNS health
75
Network security
100
GDPR outside view
58
Average
71

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 a specialized community of Umbraco CMS users and developers, positioning itself as a community hub within the fediverse. Its business model is community-centric without evident monetization or advertising. The platform benefits from the open-source Mastodon ecosystem, enabling federation with other instances. The presence of an active admin and monthly active user count indicates ongoing maintenance and engagement. The lack of public contact information and formal business details suggests a volunteer or small team operation. The site’s partnerships are limited to Mastodon-related domains and open-source projects. Growth potential depends on the Umbraco CMS community size and interest in federated social networking. Strategic partnerships or sponsorships could enhance sustainability.

Security posture

Security maturity is moderate to good. HTTPS is properly implemented ensuring encrypted communications. The absence of security headers such as Content-Security-Policy and X-Frame-Options is a gap that could expose users to certain web attacks. No vulnerabilities or exposed sensitive data were detected in the HTML content. The site lacks formal security policies, incident response contacts, or vulnerability disclosure programs, which limits transparency and preparedness. Privacy compliance is minimal with no cookie consent or GDPR-specific disclosures. The platform should consider implementing security headers, formal policies, and contact channels for security incidents to improve trust and resilience.

Recommendations

  1. Implement standard security headers (CSP, X-Frame-Options, X-Content-Type-Options) to enhance protection against common web attacks.
  2. Add a cookie consent mechanism to comply with privacy regulations and improve user transparency.
  3. Publish terms of service and security policy pages to clarify user rights and security practices.
  4. Provide public contact information or a dedicated security contact for incident reporting and user support.
  5. Enhance accessibility features and SEO optimizations to improve usability and discoverability.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Umbraco Community Mastodon
Description
A Mastodon server run by and for the Umbraco CMS Community
Key services
Mastodon social networking, Community engagement for Umbraco CMS users
Content quality
good
Branding
consistent

Technology

Stack
Mastodon 4.4.8, React, JavaScript ES Modules, Service Workers, WebSockets (wss://), Manifest for PWA
Frameworks
Mastodon, React
Platforms
Fediverse, PWA
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Secure form inputs (search form)

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 social network instance for Umbraco CMS community
  2. No WHOIS data available due to TLD limitations and privacy
  3. No contact emails or phone numbers publicly listed
  4. No cookie consent or terms of service pages found
  5. Privacy policy page exists but is basic
  6. No advertising or tracking detected
  7. Site uses modern web technologies and is mobile optimized
  8. No security headers detected in HTML source
  9. No adult or explicit content present
  10. No WAF or blocking mechanisms detected
Technical notes

Notes

The website is built on Mastodon version 4.4.8, utilizing React and modern JavaScript modules, indicating a contemporary technology stack. It supports WebSocket streaming for real-time updates and includes a manifest for progressive web app capabilities. The site loads resources from a Mastodon CDN and integrates with external Mastodon-related domains for status and source code. Performance is moderate with no evident blocking or errors. Mobile optimization is good, and the site uses semantic HTML with ARIA labels for accessibility, though improvements are possible. No CMS other than Mastodon is detected. Hosting details are not explicit but likely self-managed or VPS-based. The site lacks advanced SEO features but includes basic meta tags and Open Graph data for social sharing.
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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