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Security report for clustaar.io

Clustaar · Technology · France

Medium risk. 8 critical or high findings in Email security, Security headers and 2 other checks.

Security score

60/100

Risk levelMedium

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

Clustaar is a French technology company founded in 2017, offering API services as indicated by the minimal website content on clustaar.io. The domain serves primarily as a redirect or placeholder, directing visitors to the main company website at clustaar.com. The company appears to be small-sized and focused on providing technology solutions, likely targeting developers and businesses requiring API integrations. The domain registration details are consistent with the company's identity, enhancing legitimacy. From a technical perspective, the website is minimalistic with no detected CMS, frameworks, or advanced technologies. Hosting is inferred to be on Amazon AWS based on DNS nameservers. The site lacks SEO optimization, accessibility features, and mobile optimization cannot be determined from the limited content. No analytics or tracking scripts were found, indicating minimal data collection. Security posture is weak due to absence of DNSSEC, security headers, privacy policies, and incident response information. The domain uses HTTPS (implied by modern standards though not explicitly stated), but no advanced security best practices are observed. No forms or data collection mechanisms reduce attack surface but also limit user engagement and trust. Overall, the website is low in content quality and security maturity, with a legitimacy score of 85 based on WHOIS consistency. Strategic improvements in content, security policies, and technical implementation are recommended to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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

8 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. 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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';…

  3. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

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

Keep watching clustaar.io

This scan found 26 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
15
Email security
60
DNS health
70
Network security
100
GDPR outside view
40
Average
60

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

Clustaar operates in the technology sector, providing API services likely aimed at developers and enterprises requiring integration solutions. The business model centers on API provisioning, possibly as a SaaS or platform service. Market positioning is unclear due to minimal public content, but the company maintains a consistent brand identity with registration in France. No partnerships or subsidiaries are evident from the data. The company likely generates revenue through API usage or licensing. Growth indicators and competitive advantages cannot be assessed from the limited information. The company ecosystem includes a main website at clustaar.com, suggesting clustaar.io is a secondary or technical domain.

Security posture

The security maturity of the website is low. Key gaps include lack of DNSSEC, absence of security headers, no published privacy or cookie policies, and no incident response or vulnerability disclosure information. No contact channels for security issues are provided. The minimal content reduces attack vectors but also indicates a lack of proactive security communication. Compliance with GDPR or other data protection regulations is not demonstrated. The domain registration is transparent and consistent, which supports trust. Overall, the security posture requires significant improvement to meet industry best practices and regulatory requirements.

Recommendations

  1. Enable DNSSEC on the domain to protect against DNS spoofing and improve domain security.
  2. Publish comprehensive privacy and cookie policies on the website to enhance GDPR compliance and user trust.
  3. Implement security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to harden the website against common attacks.
  4. Provide clear contact information for security incidents, including a dedicated security or abuse email address.
  5. Enhance website content quality and technical SEO to improve user experience and business credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Clustaar
Description
Clustaar is a technology company presumably offering API services related to their core business. The website provided is minimal and directs users to another domain for more information.
Key services
API services
Content quality
poor
Branding
moderate

Technology

Performance
moderate
SEO
poor

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
poor
User experience
poor
Content relevance
poor
Navigation
poor
Professionalism
poor
Trustworthiness
low

Key observations

  1. Website content is minimal and acts as a redirect or pointer to the main company website.
  2. No privacy, cookie, or terms of service policies are present on this domain.
  3. No contact information or security policies are provided.
  4. The domain is registered to a French company named Clustaar with no privacy protection.
  5. Hosting is via AWS as inferred from DNS nameservers.
  6. No tracking or analytics scripts detected in the provided HTML.
  7. No forms or data collection mechanisms present.
  8. No social media or email contacts found on this page.
  9. Website lacks SEO and accessibility features.
  10. No security headers or advanced security configurations detected.
Technical notes

Notes

The website is hosted on Amazon AWS infrastructure as indicated by the DNS nameservers. The HTML content is minimal with no detected CMS, JavaScript libraries, or frameworks. No forms or interactive elements are present. The site lacks meta tags beyond the title and charset, limiting SEO effectiveness. Performance is likely moderate given minimal content, but no explicit performance data is available. Mobile optimization and accessibility cannot be assessed due to limited content. The absence of analytics or tracking scripts suggests minimal data collection and tracking. Overall, the technical implementation is basic and could benefit from modernization and enhancement.
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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