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Security report for nextbike.at

nextbike business · Transportation · Germany

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

68/100

Risk levelMedium

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

Nextbike business operates as a leading European bike-sharing service provider, offering tailored mobility solutions including both station-based and stationless bike-sharing systems. The company positions itself as a market leader in Europe, supported by a professional website with multilingual capabilities and strong branding aligned with its parent company, TIER Mobility. The website demonstrates a modern technical infrastructure built on WordPress with SEO optimization and mobile responsiveness. Security posture is adequate with HTTPS enforced, but lacks visible security headers and formal security policies. The absence of WHOIS domain registration data raises concerns about domain legitimacy, although the website content and social media presence support business credibility. Privacy and cookie policies are not clearly presented, indicating compliance gaps. Overall, the site is professional but would benefit from enhanced transparency and security documentation.

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

5 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. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  3. 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
    • High

      Weak SSL Key Length

      SSL certificate uses 384-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048
  4. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Domain Expires Soon

      Domain expires in 25 days

      What to do: Renew domain registration before expiration

Need hands-on remediation? Email guard@offseq.com

Keep watching nextbike.at

This scan found 24 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
52
Security headers
65
Email security
60
DNS health
60
Network security
100
GDPR outside view
68
Average
68

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 nextbike.at, from OffSeq Breach.

Total records
25
Employees
0
Customers
25
Third parties
0
Weak passwords
44%

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 nextbike.at.

Select it in the checkout above.

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

Nextbike's market position as a European bike-sharing leader is reinforced by its comprehensive service offerings and integration with TIER Mobility. The business model focuses on providing flexible bike-sharing solutions to urban mobility markets. The website targets both end-users and business clients, emphasizing tailored mobility systems. The company leverages social media channels for brand engagement and maintains a consistent digital presence. However, the lack of explicit contact details and privacy documentation on the website may impact customer trust and regulatory compliance. The domain registration inconsistency suggests a need for verification of digital assets to ensure brand protection and legitimacy.

Security posture

The website employs HTTPS, ensuring encrypted communications, and avoids exposing sensitive data in its HTML content. However, it lacks critical security headers such as Content Security Policy, HSTS, and X-Frame-Options, which are recommended to mitigate common web vulnerabilities. No vulnerability disclosure or incident response information is provided, limiting transparency for security researchers and users. The absence of privacy and cookie policies further indicates potential compliance gaps with GDPR and related regulations. While no immediate vulnerabilities are evident, the security posture would benefit from formalized policies, enhanced header configurations, and public disclosure mechanisms to improve trust and resilience.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies with explicit GDPR compliance statements.
  2. Add security headers including Content Security Policy, HSTS, and X-Frame-Options to strengthen web security.
  3. Provide clear contact information including company emails and phone numbers to enhance business credibility.
  4. Publish a vulnerability disclosure policy and security.txt file to facilitate responsible security reporting.
  5. Verify and update domain WHOIS registration to ensure consistency and legitimacy of digital assets.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
nextbike business
Description
Passgenaue Mobilitätslösungen im Bike-Sharing mit nextbike. Stationsbasiert oder stationslos: Wir stellen maßgeschneiderte Systeme bereit.
Key services
Bike-sharing systems, Mobility solutions, Station-based and stationless bike-sharing
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Yoast SEO plugin, jQuery, Select2, Font Awesome, Google Fonts, Open Sans font, Flickity carousel
Frameworks
WordPress CMS
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Marketing tools
Yoast SEO
Transparency
basic

Site quality

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

Key observations

  1. Website is accessible and not blocked by WAF or security challenges
  2. Content is primarily in German with multilingual support
  3. No explicit privacy, cookie, or terms of service pages detected in provided HTML
  4. No contact emails or phone numbers explicitly found in the analyzed content
  5. Strong branding and social media presence linked
  6. Use of modern web technologies and SEO best practices
  7. WHOIS data missing, which is a critical concern for domain legitimacy
  8. No visible security.txt or vulnerability disclosure information
Technical notes

Notes

The website is built on WordPress CMS with modern plugins such as Yoast SEO for search engine optimization and Select2 for enhanced UI elements. It uses standard web fonts and icon libraries like Font Awesome. The site is mobile optimized with responsive design and includes multilingual support. Performance appears moderate with no evident blocking scripts or heavy resources. Accessibility features are basic but could be improved. The technical stack is current but would benefit from enhanced security configurations and formalized compliance features to reduce technical debt and regulatory risks.
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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