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Security report for tekfun.com.tw

Tekfun Co., Ltd. · Telecommunications · Taiwan

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

68/100

Risk levelMedium

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

Tekfun Co., Ltd. is a Taiwanese manufacturer specializing in cellular and WLAN antennas and related RF components since 1990. The company has established a strong market position with a global customer base, offering a wide range of products including indoor and outdoor antennas, RF cable assemblies, connectors, and repeaters. They provide OEM and ODM services, emphasizing quality control and rapid delivery. The website reflects a professional business with clear product categorization and contact information. Technically, the site uses modern JavaScript libraries and Google Tag Manager for analytics, with good mobile optimization and SEO practices. Security posture is adequate with HTTPS and CSRF protection but lacks advanced security headers and formal vulnerability disclosure. Privacy compliance is partial, with a privacy policy present but no cookie consent mechanism. Overall, the site is trustworthy and well-maintained but could improve in security and privacy transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 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

4 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 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

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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

Keep watching tekfun.com.tw

This scan found 25 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.

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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
54
Security headers
60
Email security
70
DNS health
60
Network security
100
GDPR outside view
65
Average
68

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 tekfun.com.tw, from OffSeq Breach.

No leaked records found

Breach holds no records for tekfun.com.tw right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

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

Business context

Business profile

Tekfun operates in the telecommunications manufacturing sector, targeting OEM/ODM clients and telecom device manufacturers. Their competitive advantage lies in their long-standing experience, in-house antenna testing facilities, and comprehensive product range. Revenue streams likely come from product sales and custom projects. The company maintains partnerships with service providers like GTUT for web design and asset hosting. Growth indicators include continuous product updates and new product listings. The company’s operations are focused on Taiwan with a global customer reach. Strategic observations suggest opportunities in enhancing digital security and privacy compliance to meet international standards.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and CSRF token usage. However, it lacks critical security headers such as Content-Security-Policy and X-Frame-Options, which could mitigate common web attacks. No vulnerability disclosure or incident response contacts are provided, indicating limited readiness for security incidents. Privacy compliance is incomplete due to absence of cookie consent mechanisms. No exposed sensitive data or vulnerable libraries were detected. Overall, the security posture is functional but could be significantly improved by adopting best practices and formal policies.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Add a cookie consent banner to comply with GDPR and other privacy regulations.
  3. Publish a vulnerability disclosure policy or security.txt file to improve transparency and incident response readiness.
  4. Enhance privacy policy to explicitly address GDPR compliance and data retention policies.
  5. Regularly audit third-party scripts and tracking tools to minimize privacy risks and improve user trust.

Contact details published on the site

Addresses
Legal name
Tekfun Co., Ltd.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tekfun Co., Ltd.
Description
Tekfun Co., Ltd. manufactures and exports various cellular and WLAN antennas since 1990, including antennas for 3G, 4G LTE, GSM, CDMA, TDMA, UMTS telecom devices, WLAN devices, GPS devices, and also produces RF connectors, cable assemblies, and repeaters. They offer OEM/ODM custom projects and emphasize strict quality control and rapid shipment.
Key services
Cellular and WLAN antenna manufacturing, RF cable assembly, RF connectors, Repeaters and boosters, OEM/ODM custom antenna projects
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Google Tag Manager, FontAwesome, Material Design Iconic Font, Validation Engine
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of CSRF token meta tag

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

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 no blocking or WAF challenges.
  2. Content is focused on telecommunications antenna manufacturing and related RF products.
  3. Contact information is clearly provided and consistent across multiple locations.
  4. No explicit privacy or cookie consent mechanisms detected, indicating partial GDPR compliance.
  5. Use of Google Tag Manager indicates some level of user tracking and analytics.
  6. No security.txt or vulnerability disclosure found, which is a potential area for improvement.
  7. Website uses HTTPS with good SSL configuration but lacks advanced security headers.
  8. Structured data is implemented for organization and breadcrumb schema.
  9. Navigation and product categorization are clear and comprehensive.
  10. No suspicious or malicious content detected.
Technical notes

Notes

The website uses a modern but relatively simple technology stack centered on jQuery and Google Tag Manager. It employs font icon libraries and validation plugins for UI/UX enhancements. The site is hosted under the Taiwanese registrar HINET, consistent with company location. Performance is moderate with some preloading optimizations. Mobile responsiveness is good, but accessibility features are basic. SEO is supported by proper meta tags and structured data including JSON-LD for organization and breadcrumbs. No CMS is explicitly detected, suggesting a custom or proprietary platform. Technical risks include lack of advanced security headers and incomplete privacy mechanisms, which could impact compliance and security posture.
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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