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Security report for v0.app

Other · N/a

Medium risk. 9 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

The website at v0.app is currently inaccessible due to a Vercel Security Checkpoint blocking access. The page content indicates a failure to verify the browser, preventing any meaningful interaction or content retrieval. As a result, no business information, contact details, or privacy policies are available for analysis. The site appears to be hosted on the Vercel platform and uses Astro framework technology, but no further technical or business details can be extracted from the blocked content. The security posture is minimal due to the lack of visible security headers or policies, and the overall website quality is poor given the lack of accessible content. This blockage significantly limits the ability to assess the website's compliance, security, and business credibility.

Scanned

NIS2 and GDPR posture

GDPR outside view
50/ 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

9 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 v0.app

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

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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
72
Security headers
20
Email security
40
DNS health
80
Network security
100
GDPR outside view
50
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

Due to the security checkpoint blocking access, no business intelligence data such as market positioning, business model, or partnership ecosystem could be identified. The absence of contact information and policies suggests the site is either under development, restricted, or protected by strict security measures. No revenue streams or target customer segments are discernible from the available data.

Security posture

The security posture is currently limited to the presence of a Vercel Security Checkpoint, which acts as a protective mechanism against unauthorized access or malicious traffic. However, no additional security headers or policies are visible, and no incident response or vulnerability disclosure information is provided. The site lacks visible compliance indicators such as GDPR notices or security certifications. The blocking mechanism itself is a positive security control but restricts content access and transparency.

Recommendations

  1. Work with Vercel support to resolve the security checkpoint blocking legitimate users to improve accessibility.
  2. Publish clear privacy, cookie, and terms of service policies to enhance compliance and user trust.
  3. Add visible contact information including security incident response contacts to improve transparency.
  4. Implement standard security headers to strengthen security posture beyond the checkpoint.
  5. Ensure the website content is accessible and functional to allow proper analysis and user engagement.
Site observations

Automated reading of the public site. Ratings are indicative.

Vercel Security Checkpoint detected. The website displays a security checkpoint page by Vercel indicating browser verification failure and blocking access. These observations may be incomplete. For a fuller analysis, contact guard@offseq.com.

Business

Content quality
poor
Branding
moderate

Technology

Stack
JavaScript, Astro, Vercel
Frameworks
Astro
Platforms
Vercel

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website content is blocked by a security checkpoint from Vercel.
  2. No visible business or contact information on the page.
  3. No privacy, cookie, or terms of service policies found.
  4. No forms or data collection mechanisms detected.
  5. Minimal content with only error/failure messages related to browser verification.
  6. No external analytics or advertising scripts detected.
  7. Only one external link to vercel.link for fixing the issue.
  8. No social media or contact emails found.
  9. No security headers or meta tags detected in the provided HTML.
  10. Page requires JavaScript enabled to proceed.
Technical notes

Notes

The website uses the Astro framework and is hosted on Vercel, indicating a modern JavaScript-based static or server-side rendered site. The HTML includes obfuscated JavaScript likely related to the security checkpoint mechanism. No CMS or analytics tools are detected. The site requires JavaScript enabled for access and shows minimal content otherwise. Performance, SEO, and accessibility cannot be assessed due to content blocking. The technical implementation is currently hindered by the security checkpoint preventing content delivery.
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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