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Security report for tesonet.com

Tesonet · Technology · Lithuania

Medium risk. 11 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

62/100

Risk levelMedium

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

Tesonet is a well-established technology accelerator and investment company founded in 2015, headquartered in Lithuania. It supports tech startups and fast-growing businesses globally, with a strong focus on cybersecurity, HealthTech, EdTech, and growth technologies. The company operates a large ecosystem with over 3300 experts and a portfolio of founded companies and investments, including notable subsidiaries such as Nord Security and Surfshark. The website reflects a professional and modern digital presence with excellent content quality and user experience. Technically, the site is built on WordPress with modern SEO and accessibility practices, hosted by HOSTINGER operations, UAB. Security posture is strong with HTTPS, reCAPTCHA protection on forms, and domain transfer protection, though DNSSEC and some security headers could be improved. Privacy compliance is well addressed with clear privacy and cookie policies and consent mechanisms. Overall, Tesonet presents a credible and trustworthy business profile with a strong market position in the tech accelerator space.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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

11 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 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

  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. 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.

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

Keep watching tesonet.com

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.

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
65
Security headers
45
Email security
30
DNS health
80
Network security
100
GDPR outside view
53
Average
62

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

Tesonet holds a significant market position as a technology accelerator and investor, leveraging a large expert network and selective investment strategy. Its business model combines direct company founding, investments, and fund commitments, targeting tech startups and founders worldwide. The company emphasizes a customized approach to growth and offers comprehensive support services including media, PR, hosting, and technical support. Tesonet's portfolio includes multiple high-profile subsidiaries and investments, indicating strong growth and partnership ecosystems. The company targets ambitious founders and startups at various stages, providing tailored guidance and resources to scale globally. Strategic partnerships with companies like Hostinger and Žalgiris Ventures enhance its ecosystem and market reach.

Security posture

Tesonet demonstrates a mature security posture with HTTPS enforced across the site and the use of Google reCAPTCHA to protect forms from automated abuse. The domain is secured with clientTransferProhibited status, preventing unauthorized transfers. However, DNSSEC is not enabled, which is a recommended best practice to protect against DNS spoofing. No explicit security headers were detected in the HTML content, suggesting room for improvement in HTTP header security controls. There is no published security policy or incident response contact information, which could enhance transparency and readiness. No vulnerabilities or exposed sensitive data were observed. Overall, the security posture is good but could be strengthened with additional DNS and header security measures and formal security documentation.

Recommendations

  1. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing attacks.
  2. Implement and publish security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Create and publish a formal security policy and incident response contact information to improve transparency and preparedness.
  4. Consider adding a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  5. Maintain and regularly update privacy and cookie policies to ensure ongoing GDPR compliance and user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tesonet
Description
Tesonet is a technology company focused on accelerating tech startups and businesses globally. They have over 3300 experts and have accelerated 30+ products worldwide. They support fast-growing tech businesses with a focus on cybersecurity, HealthTech, EdTech, and Growth Tech. They provide a customized approach to growth, investment, network, media & PR, business hosting, and technical support.
Key services
Network access, Investment, Customized growth approach, Media and PR strategy, Business hosting infrastructure, Technical support
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Yoast SEO plugin, Google reCAPTCHA, Swiper.js
Platforms
WordPress
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA for forms
  • ClientTransferProhibited domain status

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Tracking pixels
Google reCAPTCHA
Marketing tools
Yoast SEO
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and well-structured
  2. Strong portfolio and investment presence with multiple linked domains
  3. Good use of SEO and accessibility best practices
  4. Security posture is good but could be improved with DNSSEC and security headers
  5. Privacy and cookie policies are present and GDPR compliant
  6. No explicit terms of service or security policy found
  7. Contact information is primarily via contact form; no direct emails or phone numbers found
  8. No evidence of WAF or blocking mechanisms
Technical notes

Notes

The website is built on WordPress CMS with the Yoast SEO plugin, Google reCAPTCHA for form protection, and Swiper.js for interactive sliders. The hosting provider is HOSTINGER operations, UAB, consistent with the WHOIS data. The site demonstrates fast loading times, excellent mobile optimization, and good accessibility features. SEO is well implemented with proper meta tags, Open Graph, and JSON-LD structured data. The site uses modern JavaScript bundles and asynchronous loading for performance. There is no evidence of outdated or vulnerable libraries. The technical infrastructure supports a professional and scalable digital presence with minor opportunities for security header enhancements and DNSSEC activation.
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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