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Security report for thrifty.be

The Hertz Corporation · Transportation · Belgium

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 Belgium is a car rental service website operated under The Hertz Corporation, a well-established global transportation company founded in 1958. The website offers a comprehensive range of rental vehicles targeting cost-conscious travelers and business clients in Belgium and Europe. The business model focuses on providing flexible, affordable car rental options with a strong online booking platform and physical locations across Europe. The site is well-branded, consistent, and provides clear service offerings with multiple language and location options. Technically, the website uses modern web technologies including Bootstrap 5, jQuery, and Google Tag Manager, with a cookie consent mechanism powered by Securiti.ai. The site is mobile-optimized and SEO-friendly, though some accessibility features could be enhanced. Performance is moderate with a good user experience and clear navigation. Security posture is solid with HTTPS enforced and cookie consent implemented, but lacks explicit security headers and a published security.txt file. The WHOIS data is restricted due to DNS Belgium policies, limiting domain registration transparency, which slightly impacts trust. However, the overall digital maturity and security practices align with industry standards for a large transportation company. Overall, the website presents a trustworthy and professional front for Thrifty Car Rental in Belgium, with recommendations to improve security headers, publish vulnerability disclosure information, and enhance accessibility to further strengthen its security and compliance posture.

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.be

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.

Daily monitoring

Recommended

€25per month

  • 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
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 Belgium operates as a key regional branch of The Hertz Corporation, leveraging a strong global brand and extensive European network. The company targets budget-conscious travelers and business clients, offering a wide vehicle selection including electric cars. The business benefits from a large footprint with over 400 locations in Europe, strategic partnerships, and a robust online booking system. Revenue streams include direct rentals, promotional discounts, and flexible rental periods. The company maintains a strong social media presence and transparent privacy practices, supporting customer trust and regulatory compliance. Growth indicators include active content marketing via blogs and event promotions. The partnership ecosystem includes sister brands like Dollar Car Rental and parent company Hertz, enhancing market reach and operational efficiency.

Security posture

The website demonstrates a mature security posture with mandatory HTTPS, cookie consent with opt-in mechanisms, and no visible exposure of sensitive data. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options is a gap. The WHOIS data restriction is a privacy measure but reduces transparency. Incident response information is partially available via a Notice of Data Incident link, but no direct security contact emails were found. The site uses third-party scripts and analytics responsibly, with no detected vulnerable libraries. Compliance with GDPR is evident through privacy policies and cookie management. Overall, the security maturity is good but can be improved by publishing explicit security policies and enhancing header configurations.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Content-Type-Options, and X-Frame-Options.
  2. Publish a security.txt file to facilitate vulnerability disclosure and improve transparency.
  3. Enhance accessibility features to meet WCAG standards for broader compliance.
  4. Provide explicit incident response contact information on the website.
  5. Regularly audit third-party scripts and dependencies for vulnerabilities and update accordingly.

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
Krijg de beste autoverhuur deals in België. Ons wagenpark is met 1 klik voor elke gelegenheid tegen voordelige tarieven te boeken. Boek nu een huurauto en tegen een scherpe prijs!
Key services
Car rental, Online check-in, Flexible rental options, Electric vehicle rentals
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Bootstrap 5, Slick Carousel, Google Tag Manager, jQuery UI, 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 mechanism
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

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 Dutch language targeting Belgium
  2. Strong branding consistent with The Hertz Corporation and Thrifty Car Rental
  3. Comprehensive cookie consent and privacy mechanisms implemented
  4. Multiple booking and contact forms present with standard fields
  5. No visible security headers detected in HTML source
  6. WHOIS data is restricted by DNS Belgium policy, limiting domain registration transparency
  7. Social media presence on Facebook, Twitter, Instagram
  8. Multiple external trusted domains used for scripts and assets
  9. No signs of WAF or content blocking detected
Technical notes

Notes

The website is built on a modern tech stack featuring Bootstrap 5 for responsive design, jQuery and jQuery UI for interactivity, and Slick Carousel for sliders. Google Tag Manager is used for analytics and marketing tags. Cookie consent is managed by Securiti.ai, indicating a focus on privacy compliance. The site loads multiple external resources from trusted CDNs and partners. Performance is moderate with some room for optimization. The site lacks a detected CMS, suggesting a custom or proprietary platform. Hosting provider details are not evident from the HTML. The site is mobile-optimized and SEO-friendly with proper meta tags and structured data (JSON-LD) describing the organization and services. Technical debt appears low, but security header implementation and accessibility improvements are recommended.
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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