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Security report for thrifty.es

The Hertz Corporation · Transportation · Spain

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

Security score

76/100

Risk levelLow

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

Thrifty.es is the Spanish localized website for Thrifty Car Rental, a well-established car rental brand operating under The Hertz Corporation. The website offers comprehensive car rental services across Spain and Europe, targeting travelers seeking affordable and flexible vehicle rentals. The site is professionally designed with a clear focus on user experience, featuring booking forms, promotional offers, and multilingual support. Technically, the website employs modern web technologies including jQuery, Bootstrap 5, and Google Tag Manager, ensuring a responsive and functional user interface. Security-wise, the site enforces HTTPS and includes cookie consent mechanisms aligned with GDPR requirements, although some security headers could be improved. The WHOIS data is unavailable due to .es domain restrictions but the domain and branding strongly align with the parent company, indicating legitimacy. Overall, the site demonstrates a mature digital presence with good privacy and security practices, suitable for its large-scale commercial operations.

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.es

This scan found 18 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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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
35
Email security
70
DNS health
85
Network security
100
GDPR outside view
88
Average
76

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.es operates in the transportation sector, specifically car rentals, serving a broad European market with over 400 locations. The business model leverages both corporate and franchise locations, supported by a strong parent company, The Hertz Corporation. The website supports multiple languages and regions, indicating a strategic approach to market penetration. Revenue streams likely include direct rentals, promotional discounts, and ancillary services. The company maintains a strong partnership ecosystem with sister brands like Dollar Car Rental. Growth indicators include active content marketing via blogs and special offers. The website's integration with global domains and social media channels reflects a well-coordinated brand strategy.

Security posture

The website exhibits a solid security posture with enforced HTTPS, cookie consent banners, and no visible exposure of sensitive data. The use of third-party scripts is standard but requires ongoing monitoring to mitigate risks. Absence of explicit security policies or vulnerability disclosure pages suggests room for improvement in transparency and incident response readiness. No critical vulnerabilities or malware indicators were detected. The site complies with GDPR through privacy policies and consent mechanisms. Security headers are not explicitly visible in the provided data and should be audited. Overall, the security maturity is good but could benefit from enhanced security headers and published incident response contacts.

Recommendations

  1. Implement comprehensive security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  2. Publish a dedicated security policy and vulnerability disclosure or security.txt file to improve transparency.
  3. Regularly audit and update third-party scripts to minimize vulnerability exposure.
  4. Enhance accessibility features to meet higher compliance standards.
  5. Maintain and clearly publish data retention policies and incident response contacts.

Contact details published on the site

Addresses
Legal name
The Hertz Corporation
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
The Hertz Corporation
Description
Mejora tu viaje con nuestro servicio de alquiler de coches en España. Los clientes son nuestra prioridad y velamos para que tengas la mejor experiencia durante tu viaje.
Key services
Car rental, Online booking, Online check-in, Promotional offers
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
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in/out
  • No exposed sensitive data in HTML

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 rich content in Spanish targeting Spain and Europe.
  2. Strong branding consistent with The Hertz Corporation and Thrifty Car Rental.
  3. Comprehensive cookie consent and privacy policy mechanisms implemented.
  4. Multiple booking and contact forms present with standard fields.
  5. No WHOIS data available due to Red.es access restrictions; no negative indicators found.
  6. Use of modern web technologies and analytics tools.
  7. No visible security vulnerabilities or exposed sensitive data.
  8. Social media presence on Facebook, Twitter, Instagram confirmed.
  9. Notice of Data Incident prominently linked, indicating transparency.
  10. No explicit security.txt or vulnerability disclosure page found.
Technical notes

Notes

The website uses a modern technology stack including Bootstrap 5 for responsive design, jQuery and jQuery UI for interactivity, and Slick Carousel for UI components. Google Tag Manager is used for analytics and tracking. Cookie consent is managed via Securiti.ai scripts, indicating compliance with privacy regulations. The site loads multiple external resources from trusted CDNs, contributing to moderate performance. The HTML structure is valid and SEO optimized with meta tags, canonical links, and hreflang attributes for multilingual support. Hosting provider details are not explicit but the site appears stable and well-maintained. Opportunities exist to improve performance by optimizing script loading and enhancing accessibility compliance.
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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