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Security report for blackfire.io

Blackfire · Technology · France

Low risk. 2 critical or high findings in Security headers and GDPR outside view.

Security score

78/100

Risk levelLow

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

Blackfire is a European-based technology company specializing in continuous observability solutions for PHP and Python applications. Positioned as a leading web observability provider in Europe, Blackfire offers a SaaS platform that enables developers to monitor, profile, and optimize application performance proactively. Their integration with Platform.sh enhances their market reach and technical capabilities. The website demonstrates a mature digital presence with modern frameworks and good content quality, targeting developer teams seeking performance optimization tools. However, a critical security weakness is the invalid SSL certificate and lack of proper HTTPS configuration, which undermines trust and security posture. Privacy compliance is well addressed with comprehensive policies and consent mechanisms. Overall, Blackfire shows strong business credibility and technical maturity but must urgently address SSL issues to improve security and user trust.

Scanned

This is an earlier scan of blackfire.io. View the latest report

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

2 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 Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

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

Keep watching blackfire.io

This scan found 16 issues across 5 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

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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
100
Security headers
65
Email security
60
DNS health
85
Network security
100
GDPR outside view
58
Average
78

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention blackfire.io, from OffSeq Breach.

Total records
67
Employees
0
Customers
67
Third parties
0
Weak passwords
9%

1 subdomain affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for blackfire.io.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

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Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Blackfire operates in the technology sector, focusing on developer tools for application performance monitoring and profiling. Their business model is SaaS-based, offering continuous profiling, monitoring, and testing integrated into CI/CD pipelines. The company targets software developers and engineering teams working with PHP and Python, emphasizing proactive performance management and crisis prevention. Their market position is strong in Europe, supported by over 1,000 engineering teams and a strategic parent company, Platform.sh. The website highlights key partnerships, customer testimonials, and a comprehensive service portfolio. Growth indicators include integration with major platforms and active community engagement via GitHub, YouTube, and Discord. The company maintains a consistent brand and professional online presence, reinforcing trust and market leadership.

Security posture

The current security posture of the website is moderate but with critical deficiencies. While the site uses modern technologies and has no detected vulnerable SSL/TLS protocols or known vulnerabilities like Heartbleed or POODLE, the SSL certificate is invalid or missing, and no TLS protocols are enabled. This exposes users to potential man-in-the-middle attacks and undermines secure communications. Security headers are not detected, and advanced security features like HSTS, OCSP stapling, and session resumption are absent. Incident response and security policy information are not publicly available on the site. Privacy compliance is strong, with GDPR-aligned policies and cookie consent mechanisms. The company should prioritize fixing SSL issues and enhancing security headers to improve overall security maturity.

Recommendations

  1. Immediately fix and properly configure a valid SSL/TLS certificate to enable HTTPS.
  2. Implement HTTP Strict Transport Security (HSTS) with includeSubDomains and preload directives.
  3. Enable OCSP stapling and session resumption to improve SSL performance and security.
  4. Add and configure security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  5. Publish a clear security policy and incident response contact information to enhance transparency and trust.
Technical notes

Notes

The website is built using modern web technologies including React and Gatsby, hosted on AWS infrastructure as indicated by DNS nameservers. The site is well-structured with good SEO metadata and accessibility features. Performance is moderate with a page load time of approximately 6.9 seconds and a large page size (~1.8MB), suggesting room for optimization. The site includes comprehensive content covering product features, customer testimonials, and detailed documentation links. Cookie consent is managed via OneTrust, and analytics are implemented through Google Tag Manager. The absence of a valid SSL certificate is a significant technical risk. Overall, the technical infrastructure is solid but requires urgent security improvements and performance tuning.
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. 63/100 −1Medium27 findingsView report
  2. 64/100Medium28 findingsView report
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