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Security report for me.dm

A Medium Corporation · Media · United States

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

Security score

68/100

Risk levelMedium

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

The website me.dm is an independent Mastodon server operated by A Medium Corporation, affiliated with Medium.com. It provides a federated social networking platform focused on sharing ideas and information to deepen understanding of the world. The site leverages the Mastodon open-source platform (version 4.3.9) and is hosted with Cloudflare DNS services. The domain is well-established since 2007, indicating a mature presence in the social media space. The content is publicly accessible and primarily consists of social posts related to news, politics, and social issues, targeting a general audience. Privacy policy is present but basic, with no cookie consent mechanism or detailed security policies visible.

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

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 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 me.dm

This scan found 24 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

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

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Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
57
Security headers
70
Email security
60
DNS health
70
Network security
100
GDPR outside view
53
Average
68

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

me.dm positions itself as a niche Mastodon server branded by Medium.com, targeting users interested in thoughtful content and social discourse. The business model revolves around providing a federated social media platform without ads or algorithms, appealing to privacy-conscious users. The domain's longevity and consistent WHOIS data support its credibility. The platform integrates with the broader fediverse ecosystem, linking to various external Mastodon and social domains. There is no evidence of direct monetization or advertising partnerships. The server has a moderate user base (~931 active users) indicating a medium-sized community.

Security posture

The website enforces HTTPS with good SSL configuration and uses security best practices such as Subresource Integrity for scripts and stylesheets. However, DNSSEC is not enabled, which is a recommended improvement. No explicit security or incident response policies are published, and no vulnerability disclosure or security.txt files are found. The absence of cookie consent mechanisms and detailed privacy compliance features indicates room for improvement in GDPR and privacy adherence. Overall, the security posture is good but could be enhanced with more transparency and DNS security.

Recommendations

  1. Enable DNSSEC to improve DNS security and prevent spoofing.
  2. Implement a cookie consent mechanism to comply with GDPR and privacy regulations.
  3. Publish detailed security policies and incident response procedures on the website.
  4. Add a vulnerability disclosure policy and security.txt file to encourage responsible reporting.
  5. Enhance accessibility features to improve compliance and user experience for all users.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
A Medium Corporation
Description
Ideas and information to deepen your understanding of the world. Run by the folks at Medium.
Key services
federated social networking, content exploration, social posts
Content quality
good
Branding
consistent

Technology

Stack
Mastodon 4.3.9, Cloudflare DNS, JavaScript, SVG, CSS
Frameworks
Mastodon
Platforms
Fediverse, Mastodon
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Subresource Integrity (SRI) used on scripts and stylesheets
  • clientTransferProhibited domain status

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 an independent Mastodon server branded as me.dm by Medium.com
  2. Content is publicly accessible with no blocking or WAF challenges
  3. Uses modern web technologies and Mastodon platform version 4.3.9
  4. No explicit privacy or cookie consent mechanisms detected beyond basic privacy policy
  5. WHOIS data is consistent and domain is well aged
  6. No direct company contact emails or phone numbers found on the page
  7. No security.txt or vulnerability disclosure pages detected
  8. No advertising or tracking services detected in the HTML content
Technical notes

Notes

The site uses Mastodon 4.3.9, a modern federated social networking platform, with Cloudflare DNS services. The frontend uses JavaScript, CSS with Subresource Integrity, and SVG graphics for logos and icons. The site is mobile-optimized with responsive design and basic accessibility features. Performance is moderate with no major issues detected. SEO is basic with standard meta tags and Open Graph data. No CMS is detected, indicating a custom or platform-specific implementation. The technical infrastructure is solid but could benefit from enhanced accessibility and SEO optimizations.
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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