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Security report for leafletjs.com

Internet Invest, Ltd. dba Imena.ua · Technology · N/a

Medium risk. 9 critical or high findings in Email security, Security headers and 2 other checks.

Security score

57/100

Risk levelMedium

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

Leaflet is a well-established open-source JavaScript library specializing in mobile-friendly interactive maps. It holds a leading position in the mapping technology sector, serving developers and organizations requiring lightweight, extensible mapping solutions. The project is community-driven with a strong presence on GitHub and trusted by major technology companies. The website reflects a professional, well-maintained digital presence with excellent content quality and user experience. Technically, the site leverages modern web technologies including JavaScript, CSS, and HTML5, integrating third-party services such as OpenStreetMap and Mapbox for map tiles. The infrastructure is performant and optimized for both desktop and mobile platforms. However, there is room for improvement in security practices, particularly in enabling DNSSEC, adding security headers, and publishing privacy and cookie policies. From a security perspective, the website uses HTTPS and has domain transfer protections but lacks DNSSEC and explicit security headers. No contact information or incident response channels are provided, which limits transparency in security governance. The absence of privacy and cookie policies also indicates gaps in compliance with data protection regulations. Overall, the website is trustworthy and professionally managed but would benefit from enhanced security and privacy compliance measures to reduce risk and improve user trust.

Scanned

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

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 leafletjs.com

This scan found 28 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
62
Security headers
15
Email security
60
DNS health
70
Network security
100
GDPR outside view
35
Average
57

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 leafletjs.com, from OffSeq Breach.

Total records
222
Employees
0
Customers
167
Third parties
55
Weak passwords
20%

6 subdomains 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 leafletjs.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

Leaflet operates as an open-source project with a business model centered on community contributions and plugin ecosystems rather than direct monetization. Its market positioning as a leading interactive mapping library is supported by endorsements from major technology companies and government entities. The target audience includes developers and organizations needing customizable mapping solutions. The project demonstrates growth through active GitHub contributions and a broad plugin marketplace. Partnerships with OpenStreetMap and Mapbox enhance its ecosystem. The lack of direct business contact information suggests a focus on community-driven development rather than commercial sales. The project is mature, founded in 2012, and maintains a consistent brand and high-quality content.

Security posture

The security posture of the website is moderate. HTTPS is enforced, and domain transfer protections are in place, which are positive indicators. However, the absence of DNSSEC and security headers such as Content-Security-Policy and Strict-Transport-Security reduces the overall security level. No explicit security or incident response policies are published, and no dedicated security contact channels are provided. The use of third-party scripts like Google Analytics and social media widgets introduces moderate tracking but no evident vulnerabilities. The site does not expose sensitive data or show signs of vulnerabilities in the analyzed content. Improvements in security headers, DNSSEC, and privacy compliance would enhance the security maturity.

Recommendations

  1. Enable DNSSEC on the domain to protect against DNS spoofing and improve domain security.
  2. Publish comprehensive privacy and cookie policies to comply with GDPR and enhance user trust.
  3. Implement security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to mitigate common web attacks.
  4. Provide explicit contact information for security incidents and designate an incident response contact.
  5. Regularly audit and update third-party scripts and dependencies to minimize vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Internet Invest, Ltd. dba Imena.ua
Description
Leaflet is a modern, lightweight open-source JavaScript library for mobile-friendly interactive maps. It provides mapping features such as tile layers, markers, popups, vector layers, image overlays, and GeoJSON support. It is designed for simplicity, performance, and usability, and supports desktop and mobile platforms.
Key services
Interactive mapping JavaScript library, Plugins for extended functionality, Documentation and tutorials
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML5, Google Analytics, Leaflet.js library, OpenStreetMap tiles, Mapbox API
Platforms
Desktop browsers, Mobile browsers
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
55/100
Good practices seen
  • HTTPS usage implied by URLs (https://leafletjs.com)
  • Domain status clientTransferProhibited to prevent unauthorized transfers

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
poor

Advertising

Marketing tools
Twitter widgets, Facebook like button
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking.
  2. No privacy, cookie, or terms of service policies found on main site.
  3. No contact emails or phone numbers explicitly provided.
  4. Strong open-source community presence via GitHub and social media.
  5. Use of external trusted domains for map tiles and APIs.
  6. Basic security posture with room for improvement in headers and DNSSEC.
  7. No signs of suspicious or malicious content.
  8. Good mobile and desktop browser support.
  9. No forms detected that collect user data.
Technical notes

Notes

The website uses a modern and lightweight technology stack centered on JavaScript and CSS, with Leaflet.js as the core library for interactive maps. It integrates external tile services from OpenStreetMap and Mapbox, ensuring high-quality map rendering. The site is optimized for mobile and desktop browsers with responsive design and accessibility considerations. Hosting and DNS are managed by Internet Invest, Ltd. with multiple DNS servers but lack DNSSEC. Performance is fast with asynchronous loading of analytics and social media scripts. The site does not use a CMS, indicating a custom or static site architecture. There is no evidence of technical debt or deprecated technologies, but security enhancements are recommended.
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. 57/100 +2Medium37 findingsView report
  2. 55/100Medium35 findingsView report
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