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Security report for itesco.sk

Tesco Stores SR, a.s. · Retail · Slovakia

Partial score · DNS & email only

69/100

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

Tesco Stores SR, a.s. operates a comprehensive retail supermarket website serving Slovakia, offering online grocery shopping, loyalty programs (Clubcard), and various promotional offers. The website is professionally designed with a strong brand presence and clear navigation, targeting general consumers in Slovakia. The business model focuses on retail sales both in physical stores and online, supported by a loyalty program to enhance customer retention. The site is part of the larger Tesco PLC group, a major player in the retail sector. Technically, the website uses modern frameworks such as React and Next.js, integrates analytics and performance monitoring tools like Google Analytics and New Relic, and implements good SEO and accessibility practices. Security posture is strong with HTTPS enforced, security headers present, and no visible vulnerabilities. Privacy compliance is well addressed with clear privacy and cookie policies and consent mechanisms. Overall, the website demonstrates a mature digital infrastructure suitable for an enterprise retail business.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 100 · Medium
Checks completed
6of 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

2 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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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 itesco.sk

This scan found 9 issues across 5 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
0
Email security
85
DNS health
85
Network security
100
GDPR outside view
73
Average
69

Not counted

  • Security headers: did not complete in this scan.
  • 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

Tesco holds a strong market position in Slovakia as a leading supermarket chain with a well-established online presence. The business leverages its Clubcard loyalty program to drive customer engagement and repeat purchases. Revenue streams include in-store sales, online grocery orders, and subscription-based services like the Online Club. The company maintains partnerships with suppliers and service providers, as evidenced by linked domains. Growth indicators include active promotions, seasonal campaigns, and mobile app offerings. The strategic focus on convenience, competitive pricing, and digital transformation supports Tesco's competitive advantage in the Slovak retail market.

Security posture

The website exhibits a high level of security maturity with enforced HTTPS, comprehensive security headers, and secure form handling. No exposed sensitive data or vulnerable libraries were detected in the analyzed content. However, the absence of a public security policy or incident response contact information suggests room for improvement in transparency and preparedness. GDPR compliance is evident through privacy policies and cookie consent mechanisms. The use of third-party analytics and monitoring tools is balanced with user privacy considerations. Overall, Tesco's security posture is robust but could benefit from enhanced incident response disclosures and continuous third-party risk assessments.

Recommendations

  1. Publish a dedicated security policy or security.txt file to improve transparency.
  2. Provide clear incident response contact channels such as security@ or abuse@ emails.
  3. Disclose Data Protection Officer contact information to strengthen GDPR compliance.
  4. Regularly review and update third-party scripts to mitigate supply chain risks.
  5. Optimize website performance further to enhance user experience and reduce load times.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tesco Stores SR, a.s.
Description
Prelistujte si aktuálne letáky Tesco, získajte skvelé zľavy s Clubcard, objavte chutné recepty alebo urobte svoj nákup online hneď teraz. Tešíme sa na vás!
Key services
Online grocery shopping, Clubcard loyalty program, Special offers and discounts, Home delivery and click & collect
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Google Analytics, New Relic
Frameworks
React, Next.js
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in/out
  • No exposed sensitive data in HTML
  • Use of security headers
  • Secure forms with POST methods

Analytics and tracking

Services
Google Analytics, New Relic
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
New Relic
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 maintained.
  2. Strong brand presence with consistent Tesco branding.
  3. Comprehensive privacy and cookie policies with consent mechanisms.
  4. No visible security or privacy red flags.
  5. Use of modern web technologies and analytics tools.
  6. Clear navigation and rich content for retail customers.
  7. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on a modern React and Next.js stack, enabling server-side rendering and improved SEO. Integration with Google Tag Manager and New Relic indicates active performance monitoring and analytics. The site is mobile optimized with responsive design and accessibility features. Hosting details are not explicitly disclosed but likely leverage Tesco's corporate infrastructure or CDN services. Performance is moderate with potential for optimization. The technical implementation reflects a mature digital platform suitable for enterprise retail operations, though continuous modernization and security audits are recommended to maintain resilience.
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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