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Security report for thrifty.com

Thrifty Car Rental · Transportation · United Kingdom

Medium risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

75/100

Risk levelMedium

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

Thrifty Car Rental operates a professional and user-friendly website offering car rental services primarily across Europe. The company targets both business and leisure travelers with a broad fleet including electric and economy vehicles. The website demonstrates a mature digital presence with responsive design, clear navigation, and integration of modern technologies such as Google Tag Manager and cookie consent management via Securiti.ai. However, the absence of WHOIS registration data for the domain www.thriftycars4rent.com raises concerns about domain legitimacy, despite the website's strong branding alignment with the parent company Hertz. Security posture is generally good with HTTPS enforced and CSRF tokens in forms, but lacks explicit security headers and published security policies. Privacy compliance is well addressed with clear privacy and cookie policies and consent mechanisms. Overall, the site is functional and trustworthy from a user perspective but requires verification of domain registration and enhancement of security transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 100 · Low
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. 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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • 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. 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 thrifty.com

This scan found 19 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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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
77
Security headers
30
Email security
70
DNS health
85
Network security
100
GDPR outside view
88
Average
75

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

Thrifty Car Rental is a well-established brand founded in 1958 and operating under the parent company Hertz Global Holdings. The business model focuses on car rental services with a strong European footprint of over 400 locations. The company leverages online booking and flexible rental options to serve cost-conscious travelers. The website reflects a consistent brand image and integrates promotional offers and multilingual support. The partnership ecosystem includes sister company Dollar Car Rental and multiple localized Thrifty domains. The company benefits from trust signals such as social media presence and affiliation with Hertz. However, the domain registration inconsistency suggests a need for tighter domain management and brand protection.

Security posture

The website enforces HTTPS and implements cookie consent mechanisms aligned with GDPR requirements. Forms include CSRF tokens, indicating attention to input security. However, the absence of common security headers such as Content Security Policy, HSTS, and X-Content-Type-Options reduces the overall security robustness. No vulnerability disclosure or incident response information is published, limiting transparency. The WHOIS data absence is a notable risk factor, potentially exposing the brand to domain spoofing or phishing. No exposed sensitive data or vulnerable libraries were detected in the provided content. Security posture is moderate but can be improved by adopting best practices and publishing security policies.

Recommendations

  1. Verify and register the domain properly to ensure ownership legitimacy and prevent brand abuse.
  2. Implement and publish explicit security headers including CSP, HSTS, and X-Content-Type-Options.
  3. Publish a security policy and incident response contact information to enhance transparency and trust.
  4. Establish a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  5. Enhance accessibility features to improve compliance and user experience for all users.

Contact details published on the site

Addresses
Legal name
Thrifty Car Rental
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Thrifty Car Rental
Description
Thrifty Car Rental offers affordable car rentals across Europe with over 400 locations. They provide a wide range of vehicles including electric and economy models, targeting cost-conscious business and leisure travelers.
Key services
Car rental, Online booking, Flexible rental options, Electric vehicle rentals
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Bootstrap 5, Slick Carousel, jQuery UI, Google Tag Manager, Securiti.ai cookie consent
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • CSRF token in forms

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Securiti.ai cookie consent
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 no WAF or blocking detected
  2. Professional design with responsive layout and clear navigation
  3. Comprehensive cookie consent and privacy policy mechanisms implemented
  4. WHOIS data unavailable, raising concerns about domain registration legitimacy
  5. Strong affiliation with Hertz and Thrifty brands evident in content and links
  6. Multiple external trusted domains used for scripts and assets
  7. No explicit security headers detected in HTML content
  8. No visible contact emails but social media and phone contacts present
  9. No security.txt or vulnerability disclosure information found
Technical notes

Notes

The website uses a modern technology stack including Bootstrap 5, jQuery, Slick Carousel, and Google Tag Manager. Cookie consent is managed via Securiti.ai, indicating compliance with privacy regulations. The site is mobile responsive with good navigation and SEO optimization. Performance is moderate with deferred loading of scripts and preloading of key images. No CMS is explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not disclosed. Technical risks include reliance on multiple third-party scripts which require regular security audits to mitigate supply chain risks. Overall, the technical infrastructure supports a professional and functional user experience.
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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