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Security report for tesa.co.uk

tesa SE · Manufacturing · Germany

Low risk. 3 critical or high findings in SSL/TLS and GDPR outside view.

Security score

80/100

Risk levelLow

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

tesa SE is a leading global manufacturer of adhesive tapes serving industry, craftsmen, and consumers worldwide. The company offers a broad portfolio of adhesive solutions and technical consulting services, positioning itself as a trusted partner in multiple sectors including automotive, electronics, construction, and consumer goods. The website reflects a mature digital presence with comprehensive content, multi-language support, and a focus on sustainability. Technically, the site employs modern web technologies such as Vue.js, Google Analytics 4, and consent management tools, ensuring good performance and compliance with privacy regulations. Security posture is strong with HTTPS enforcement and consent mechanisms, though explicit security policies and incident response contacts are not publicly visible. Overall, the site is professional, trustworthy, and well-optimized, though the absence of WHOIS data for the domain introduces a minor trust concern. Strategic recommendations include enhancing transparency around security policies and incident response, and publishing a vulnerability disclosure policy.

Scanned

NIS2 and GDPR posture

GDPR outside view
70/ 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

3 findings rated critical or high. Fix these first.

  1. 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

  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

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

Keep watching tesa.co.uk

This scan found 15 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
80
Email security
85
DNS health
85
Network security
100
GDPR outside view
70
Average
80

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

tesa SE operates in the manufacturing sector with a focus on adhesive tape products for diverse markets including automotive, electronics, and construction. The company leverages a B2B and B2C business model, providing both industrial solutions and consumer products. Its global reach is supported by multiple production plants and a wide distribution network. The website content and structure indicate a strong brand presence and commitment to sustainability. The company’s competitive advantage lies in its technical expertise, product innovation, and extensive market coverage. The digital ecosystem includes partnerships with e-commerce platforms and analytics providers, supporting growth and customer engagement. No direct revenue data is available, but the enterprise scale and market positioning suggest a large, established business.

Security posture

The website demonstrates a solid security posture with HTTPS enforced and use of consent management for GDPR compliance. Security headers are implied but not explicitly confirmed in the HTML. No exposed sensitive data or vulnerable libraries were detected. However, the absence of a dedicated security policy page and incident response contacts limits transparency. No security.txt or vulnerability disclosure information is present, which could be improved to enhance trust and readiness. Overall, the site follows best practices for web security but could benefit from more explicit security governance documentation.

Recommendations

  1. Publish a dedicated security policy and incident response page to improve transparency.
  2. Implement and verify security headers such as X-Frame-Options and X-Content-Type-Options explicitly.
  3. Create and publish a security.txt file to facilitate vulnerability disclosure.
  4. Regularly audit third-party scripts and tracking services for security and privacy compliance.
  5. Enhance contact information availability, including direct company emails and phone numbers for support.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
tesa SE
Description
Leading global adhesive tape manufacturer represented in over 100 countries, offering adhesive tape solutions for industry, craftsmen, and consumers with expert advice and technical knowledge.
Key services
Adhesive tape manufacturing, Technical consulting, Product support, Distribution network
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Vue.js, Google Tag Manager, Google Analytics 4, Consent Manager, WebP images, Responsive video, CSS3, HTML5
Frameworks
Vue.js
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for GDPR compliance
  • No exposed sensitive data in HTML
  • Use of async loading for scripts

Analytics and tracking

Services
Google Analytics 4, Google Tag Manager, Account Insight
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Account Insight tracking
Marketing tools
Consent Manager
Transparency
good

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 detected.
  2. Strong focus on adhesive tape manufacturing for multiple sectors including industry, consumer, and craftsmen.
  3. Comprehensive multi-language support and regional targeting.
  4. Good privacy and cookie compliance with consent management.
  5. No direct contact emails or phone numbers found in the HTML; contact is via forms.
  6. No explicit security policy or incident response contact found.
  7. Use of modern web technologies and frameworks.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website uses a modern technology stack centered around Vue.js for frontend interactivity, supported by Google Analytics 4 and Google Tag Manager for analytics. Consent management is implemented via Consent Manager, ensuring GDPR compliance. The site is responsive and optimized for mobile devices, with good accessibility features and SEO practices. Performance is moderate, with asynchronous loading of scripts and use of WebP images for efficiency. The CMS appears custom or proprietary, indicated by internal identifiers. Hosting provider details are not explicit. Overall, the technical infrastructure supports a professional and scalable web presence with room for performance tuning and enhanced security header implementation.
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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