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Security report for bsky.app

Bluesky Social · Technology · N/a

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

72/100

Risk levelMedium

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

Bluesky Social is an emerging decentralized social media platform focused on providing a creative and community-driven experience for users. The platform emphasizes user engagement and creativity, positioning itself as a modern alternative in the social networking space. The website presents a professional and clean design with clear branding and accessible privacy and terms of service documentation. Technically, the site leverages modern web technologies such as React and serves content over HTTPS with good SSL configuration, ensuring secure communications. However, there is room for improvement in security headers and privacy compliance mechanisms such as cookie consent. The absence of direct contact information and security policy details suggests an opportunity to enhance transparency and user trust. Overall, the platform appears legitimate and well-positioned in the technology sector with a medium-sized operational scale.

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. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  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

  4. 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 bsky.app

This scan found 20 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

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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
77
Security headers
55
Email security
70
DNS health
70
Network security
100
GDPR outside view
58
Average
72

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

Bluesky Social operates in the technology sector as a social media platform targeting a general audience interested in decentralized and community-based social networking. Its business model revolves around user engagement and content sharing without evident advertising or affiliate programs on the site. The platform's market position is that of an innovative entrant aiming to differentiate itself through decentralization and privacy-conscious features. The company maintains a partnership ecosystem that includes domains like bsky.social and zendesk for support. Growth indicators include a modern tech stack and a focus on user experience. Strategic observations suggest that enhancing contact transparency and security policies could strengthen market trust and compliance.

Security posture

The website demonstrates a good security posture with HTTPS enforced and no exposed sensitive data in the HTML content. However, it lacks several recommended security headers such as Content-Security-Policy and X-Frame-Options, which could mitigate risks like clickjacking and cross-site scripting. There is no visible security policy or incident response information, which limits user confidence in handling security incidents. The absence of a cookie consent mechanism may pose compliance risks under GDPR and similar regulations. No vulnerable libraries or scripts were detected in the provided HTML content. Overall, the security maturity is moderate with clear areas for enhancement in policy transparency and technical controls.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  2. Add a dedicated security policy page detailing incident response procedures and contact channels.
  3. Introduce a cookie consent banner or mechanism to comply with privacy regulations.
  4. Provide clear contact information for security and abuse reporting to enhance transparency.
  5. Regularly audit and update third-party scripts and dependencies to mitigate vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Bluesky Social
Description
Social media as it should be. Find your community among millions of users, unleash your creativity, and have some fun again.
Key services
Social networking, Community building, Content sharing
Content quality
good
Branding
consistent

Technology

Stack
React, JavaScript, woff2 fonts, CSS
Frameworks
React
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • 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 modern social media platform with a clean and professional design.
  2. Privacy policy and terms of service are clearly linked and accessible.
  3. No direct contact emails or phone numbers found on the site.
  4. No cookie consent mechanism detected despite privacy policy presence.
  5. No explicit security policy or incident response information available.
  6. No advertising or tracking scripts detected in the HTML content.
  7. Site uses HTTPS with good SSL configuration.
  8. No signs of WAF or content blocking.
  9. Content is safe and suitable for general audiences.
Technical notes

Notes

The website is built using modern web technologies, primarily React, with optimized font loading and responsive design elements. The use of woff2 fonts and deferred JavaScript loading indicates attention to performance. The site is mobile-optimized with a clean and accessible layout, though accessibility features could be improved. SEO optimization is basic, with proper meta tags and Open Graph data present but no advanced structured data like JSON-LD detected. Hosting details are not explicitly available, but the use of a dedicated CDN for static assets suggests a scalable infrastructure. Performance is moderate, with potential for improvement through enhanced caching and asset optimization. Technical risks are minimal but include the lack of security headers and privacy compliance mechanisms.
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. 74/100Medium9 findings · partial scanView report
  2. 68/100 −7Medium32 findingsView report
  3. 75/100Medium22 findingsView report
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