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Security report for unpkg.com

UNPKG · Technology · N/a

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

65/100

Risk levelMedium

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

UNPKG is an open source content delivery network specializing in serving npm packages globally with low latency by leveraging Cloudflare's edge network. It targets developers and web creators who need fast, reliable access to JavaScript packages without build steps. The website provides detailed documentation, usage examples, and a metadata API to facilitate package consumption. Technically, the site uses modern JavaScript frameworks such as Preact and HTM, and is hosted on Cloudflare infrastructure ensuring fast performance and scalability. Security posture is solid with HTTPS enforced and domain registration consistent with Cloudflare, but lacks DNSSEC and explicit security policies. Privacy compliance is weak due to absence of privacy and cookie policies and no consent mechanism, despite usage of Google Analytics and Tag Manager. Overall, the site is professional, trustworthy, and well-positioned in its niche but could improve compliance and security transparency.

Scanned

This is an earlier scan of unpkg.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
35/ 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

7 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 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';…
  2. 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

    • 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

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

Keep watching unpkg.com

This scan found 22 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

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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
75
Security headers
40
Email security
70
DNS health
70
Network security
100
GDPR outside view
35
Average
65

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 unpkg.com, from OffSeq Breach.

Total records
5
Employees
0
Customers
5
Third parties
0
Weak passwords
40%

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 unpkg.com.

Select it in the checkout above.

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

Technical appendix

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

Business context

Business profile

UNPKG operates as a specialized CDN service for npm packages, filling a niche for developers needing quick access to package files without build pipelines. Its open source nature and Cloudflare partnership provide competitive advantages in scalability and reliability. The business model is service-oriented, likely supported by community and possibly sponsorships or donations. Target customers are developers and small projects requiring no-build solutions. The project has been active since 2016, indicating maturity. The ecosystem includes integrations with npm and Cloudflare, but no direct commercial partnerships or subsidiaries are evident. Growth potential lies in expanding features and compliance maturity.

Security posture

The security maturity of UNPKG is moderate to good. HTTPS is enforced via Cloudflare, and domain registration is locked with clientTransferProhibited status. However, DNSSEC is not enabled, and no explicit security headers were detected in the provided data. The site lacks published security policies, incident response contacts, or vulnerability disclosure programs, which are important for transparency and trust. The use of Cloudflare Workers adds a layer of security and scalability. No vulnerabilities or exposed sensitive data were found. Privacy compliance is lacking, which could pose regulatory risks. Overall, the security posture is functional but could be enhanced with formal policies and DNS security.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Publish comprehensive privacy and cookie policies with GDPR compliance details.
  3. Implement a cookie consent mechanism to comply with privacy regulations.
  4. Add security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  5. Establish and publish a vulnerability disclosure policy and security.txt file to improve transparency and incident response readiness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
UNPKG
Description
UNPKG is a fast, global content delivery network for everything on npm. It allows users to quickly and easily load any file on npm using URLs. It supports semantic versioning, npm tags, and resolves package entry points automatically. It is ideal for no-build apps and serves metadata about packages via an API. It is an open source project by @mjackson and is not affiliated with npm.
Key services
CDN delivery of npm packages, Metadata API for package files, Support for semantic versioning and npm tags, No-build app support via import maps
Content quality
good
Branding
consistent

Technology

Stack
Cloudflare Workers, Google Analytics, Google Tag Manager, Preact, HTM
Frameworks
Preact
Platforms
Cloudflare
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced (implied by Cloudflare hosting and URLs)
  • Domain status clientTransferProhibited
  • Use of Cloudflare Workers for edge security and scalability

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is fully accessible with rich content and documentation.
  2. No privacy, cookie, or terms of service policies found on the main page.
  3. No contact emails or phone numbers explicitly provided.
  4. Uses modern JavaScript frameworks and Cloudflare edge infrastructure.
  5. No forms or data collection fields detected.
  6. No explicit security or incident response policies published.
  7. Tracking via Google Analytics and Tag Manager present without visible cookie consent mechanism.
  8. Domain WHOIS data consistent and legitimate with Cloudflare registrar.
  9. No suspicious or malicious indicators found.
Technical notes

Notes

The website is built using modern web technologies including Preact and HTM for frontend components, served via Cloudflare Workers on Cloudflare's global edge network. This architecture ensures fast loading times and scalability. Google Analytics and Google Tag Manager are used for tracking, but no CMS or traditional backend platform is detected. The site is mobile optimized and accessible with good SEO practices. There is no evidence of technical debt or outdated libraries. The lack of DNSSEC and security headers are minor technical risks. Overall, the technical implementation is modern, performant, and well-suited for the service's purpose.
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. 66/100 −2Medium30 findingsView report
  2. 68/100Medium24 findingsView report
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