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Security report for hertz.es

The Hertz Corporation · Transportation · Spain

Low risk. 2 critical or high findings in Security headers and SSL/TLS.

Security score

78/100

Risk levelLow

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

The website www.hertz.es is the official Spanish portal for The Hertz Corporation, a globally recognized car and van rental company. It offers online reservation services tailored to the Spanish market and integrates with a broad international network of Hertz websites. The site targets consumers and businesses seeking vehicle rentals in Spain and worldwide, providing a professional and localized user experience. The business model centers on vehicle rental services supported by a loyalty program and business rental solutions. Technically, the site employs modern JavaScript frameworks, Google analytics and tag management, and security tools such as reCAPTCHA Enterprise, indicating a mature digital infrastructure. Security posture is strong with HTTPS enforcement, cookie consent mechanisms, and no visible vulnerabilities or exposed sensitive data. Privacy compliance is robust, with a comprehensive privacy policy and GDPR-aligned cookie consent. However, WHOIS data is restricted due to .es registry policies, limiting public domain registration transparency. Overall, the site is professional, secure, and trustworthy, suitable for enterprise-level 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

2 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 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 hertz.es

This scan found 17 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
72
Security headers
50
Email security
70
DNS health
85
Network security
100
GDPR outside view
88
Average
78

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention hertz.es, from OffSeq Breach.

Total records
2,127
Employees
0
Customers
2,127
Third parties
0
Weak passwords
15%

2 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for hertz.es.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Hertz Spain operates as part of The Hertz Corporation's global network, leveraging strong brand recognition and extensive geographic coverage. The company’s competitive advantage lies in its international presence, comprehensive vehicle fleet, and loyalty programs. Revenue streams include consumer and corporate rentals, subscription products, and ancillary services. The website’s multilingual and multi-regional hreflang tags demonstrate a strategic focus on localization and market segmentation. Partnerships with payment processors and API integrations support seamless customer experiences. Growth indicators include active marketing, special offers, and business-focused rental products. The company maintains a consistent branding strategy and a professional digital presence, reinforcing its market position as a leading transportation service provider.

Security posture

The site demonstrates a mature security posture with HTTPS enforced and use of advanced security tools like Google reCAPTCHA Enterprise to mitigate automated abuse. Cookie consent mechanisms comply with GDPR requirements, enhancing user privacy protections. Security headers are implied but not explicitly confirmed in the HTML, suggesting room for improvement in header transparency. No evidence of exposed credentials, vulnerable libraries, or security misconfigurations was found. However, the absence of explicit security policy or incident response information on the site may limit user confidence in handling security incidents. Overall, the security maturity is high, but formalizing and publishing security policies and incident response contacts would strengthen trust and compliance.

Recommendations

  1. Implement and explicitly declare security headers such as X-Frame-Options and X-Content-Type-Options to enhance protection against clickjacking and MIME sniffing.
  2. Publish a dedicated security policy and incident response contact information to improve transparency and user trust.
  3. Conduct regular audits of third-party scripts and dependencies to ensure no vulnerable libraries are included.
  4. Enhance accessibility features to meet higher compliance standards and improve user experience for all visitors.
  5. Maintain and update privacy and cookie policies regularly to reflect evolving regulations and best practices.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
The Hertz Corporation
Description
Reserva tu alquiler de coche y alquiler de furgoneta en España y el mundo entero con Hertz. Reserva hoy y aprovecha nuestra Garantía de Mejores Tarifas.
Key services
Car rental, Van rental, Online reservations, Gold Plus Rewards loyalty program, Business rental services
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, RequireJS, Google Tag Manager, Google Analytics, MapQuest SDK, Stripe.js, reCAPTCHA Enterprise
Frameworks
RequireJS
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of reCAPTCHA Enterprise
  • Cookie consent with opt-in/opt-out
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google DoubleClick
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 blocking or WAF challenges.
  2. Comprehensive cookie consent and privacy policy present, indicating GDPR compliance.
  3. No explicit contact emails or phone numbers found on the analyzed page.
  4. Use of multiple Google services for analytics and advertising.
  5. Secure HTTPS connection with modern security practices observed.
  6. WHOIS data is restricted by Red.es policy, limiting public access to registrant info.
  7. Website content is professional, well-structured, and localized for Spain.
  8. Multiple hreflang tags indicate strong internationalization and localization efforts.
  9. No visible security or privacy policy documents beyond standard privacy and cookie policies.
  10. No explicit security incident response or vulnerability disclosure information found.
Technical notes

Notes

The website uses a modern JavaScript-based tech stack with RequireJS for module loading, Google Tag Manager and Analytics for tracking, and Stripe.js for payment processing. The inclusion of MapQuest SDK indicates location-based services integration. The site is served over HTTPS with good SSL configuration, ensuring secure data transmission. Performance is moderate, with asynchronous loading of scripts and deferred CSS to optimize rendering. Mobile optimization is good, supported by responsive design and media queries. SEO is well addressed with meta tags, canonical links, and hreflang attributes for internationalization. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not disclosed. Overall, the technical infrastructure is robust but could benefit from enhanced accessibility and explicit security header declarations.
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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