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Security report for tescobank.com

Tesco Bank · Finance · United Kingdom

Low risk. 2 critical or high findings in GDPR outside view and SSL/TLS.

Security score

83/100

Risk levelLow

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

Tesco Bank is a UK-based financial institution offering a variety of personal banking products including credit cards, personal loans, and savings accounts. The website reflects a mature digital presence with clear navigation, comprehensive product information, and integration with social media and third-party review platforms such as Trustpilot. The bank operates under a strategic partnership with Barclays Bank UK PLC, enhancing its market position and credibility. The site is well-branded and targets UK residents seeking accessible and rewarding personal finance solutions. Technically, the website employs modern JavaScript frameworks and is hosted on Azure CDN, ensuring good performance and mobile optimization. Accessibility features and SEO best practices are evident, contributing to a positive user experience. The presence of cookie consent mechanisms and detailed privacy policies indicate a strong commitment to privacy compliance. From a security perspective, the site enforces HTTPS and uses secure forms for login and registration. However, the absence of explicit security headers and a vulnerability disclosure policy suggests areas for improvement. The lack of WHOIS registration data is a notable anomaly that warrants further investigation to confirm domain legitimacy. Overall, Tesco Bank's website demonstrates a solid digital and security posture suitable for a large financial institution, though enhancements in transparency and domain registration verification would strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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

2 findings rated critical or high. Fix these first.

  1. 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

  2. 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 tescobank.com

This scan found 16 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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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
82
Security headers
80
Email security
80
DNS health
85
Network security
100
GDPR outside view
68
Average
83

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

Tesco Bank operates in the competitive UK retail banking sector, leveraging the Tesco brand and a partnership with Barclays Bank UK PLC. Its business model focuses on personal finance products tailored to everyday consumers, including credit cards with Clubcard rewards, personal loans for various needs, and savings accounts. The bank targets a broad demographic of UK residents aged 18 and over, emphasizing simplicity and customer rewards. The website's integration with social media and community forums supports customer engagement and brand loyalty. The partnership ecosystem includes Tesco Personal Finance PLC for insurance and travel money products, indicating a diversified service offering. The bank's digital presence and product range position it as a significant player in UK personal finance, with growth potential through enhanced digital services and customer support.

Security posture

Tesco Bank's website exhibits a mature security posture with mandatory HTTPS encryption and secure user authentication mechanisms. The implementation of a cookie consent banner with granular controls aligns with GDPR requirements, reflecting good privacy practices. However, the absence of key security headers such as Content-Security-Policy and a publicly available security.txt file limits transparency and vulnerability management. No direct contact channels for incident response or abuse reporting were found, which could hinder timely security communications. The missing WHOIS data raises concerns about domain registration transparency, although the website content and branding strongly suggest legitimacy. Overall, the security posture is robust but could benefit from enhanced transparency and formalized vulnerability disclosure processes.

Recommendations

  1. Implement and publish standard security headers (CSP, X-Frame-Options, X-Content-Type-Options) to enhance protection against common web attacks.
  2. Create and maintain a security.txt file to facilitate responsible vulnerability disclosure and improve security communication.
  3. Provide explicit incident response contact information, including dedicated security and abuse email addresses.
  4. Verify and update WHOIS registration data to ensure domain transparency and trustworthiness.
  5. Enhance data retention policy disclosures and user privacy controls to strengthen GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tesco Bank
Description
Tesco Bank offers a range of personal banking products including credit cards, personal loans, and savings account options. It provides simple and rewarding ways to bank, targeting UK residents aged 18 or over.
Key services
Credit Cards, Personal Loans, Savings Accounts, Clubcard Pay+, Tools and guides for personal finance
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, SystemJS module loader, Bluebird (Promise polyfill), Trustpilot widget, Azure CDN, Microsoft Application Insights
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with granular controls
  • No exposed sensitive data in HTML
  • Secure login and registration forms

Analytics and tracking

Services
Microsoft Application Insights
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Microsoft Application Insights
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and navigation.
  2. Strong branding consistent with Tesco Bank and Barclays Bank UK PLC.
  3. Comprehensive cookie and privacy policies with user consent mechanisms.
  4. No direct contact emails or phone numbers found; contact via web forms.
  5. No explicit security.txt or vulnerability disclosure page found.
  6. Use of modern JavaScript technologies and Azure CDN hosting.
  7. No WAF or blocking detected; no error or challenge pages.
  8. WHOIS data missing, which is unusual for a financial institution domain.
Technical notes

Notes

The website is built using modern JavaScript technologies with SystemJS module loading and polyfills for compatibility. Hosting on Azure CDN ensures reliable content delivery and scalability. The site includes performance optimizations such as font preloading and lazy loading of images. Accessibility considerations are evident through ARIA labels and keyboard navigation support. SEO is supported by proper meta tags, canonical links, and structured data in JSON-LD format describing the organization and search actions. The integration of Microsoft Application Insights provides robust analytics and monitoring capabilities. No CMS was explicitly detected, suggesting a custom or proprietary platform. Overall, the technical infrastructure supports a performant, accessible, and SEO-friendly user experience with room for security header enhancements.
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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tescobank.com security report: 83/100, low risk | Guard