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Security report for nettiauto.com

Nettiauto · Transportation · Finland

Partial score · DNS & email only

75/100

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

Nettiauto is Finland's largest and most popular online vehicle marketplace, established in 2000. The platform offers a comprehensive selection of new and used cars, targeting vehicle buyers and sellers primarily within Finland. The website presents a professional and user-friendly interface with good mobile optimization and clear navigation, supporting its strong market position. Technically, the site employs modern web technologies including Google Tag Manager and integrates advertising via Adnami, indicating a mature digital infrastructure. However, the absence of WHOIS registration data raises concerns about domain legitimacy, although the website content and structured data suggest a legitimate business. Security posture is moderate with no visible security headers or explicit security policies, and privacy compliance is weak due to missing privacy and cookie policies. Overall, Nettiauto demonstrates a solid business presence but should improve transparency and security practices to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

NIS2 outside view
Not assessed
GDPR outside view
Not assessed

Both readouts depend on the site's pages, which could not be loaded in this scan.

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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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 SSL Key Length

      SSL certificate uses 256-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

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Keep watching nettiauto.com

This scan found 15 issues across 5 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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  • 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
75
Security headers
55
Email security
70
DNS health
80
Network security
100
Average
76
After the cap
75

Not counted

  • GDPR outside view: did not complete in this scan.
  • 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 nettiauto.com, from OffSeq Breach.

Total records
5,546
Employees
0
Customers
5,509
Third parties
37
Weak passwords
18%

12 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 nettiauto.com.

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

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Technical appendix

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

Business context

Business profile

Nettiauto operates as an essential entity in the transportation sector, providing an online marketplace for vehicle sales in Finland. Its business model revolves around connecting buyers and sellers of vehicles through a digital platform, leveraging a large inventory and strong brand recognition. The company benefits from a well-established market position and a broad target audience of private and corporate vehicle users. While the website shows good content quality and branding consistency, the lack of publicly available WHOIS data and privacy policies may impact perceived credibility. The platform's integration with social media channels and advertising networks supports its marketing and customer engagement strategies. There is no evidence of parent or subsidiary companies, indicating a focused operational scope.

Security posture

The security posture of Nettiauto is moderate but shows room for improvement. The website uses HTTPS, but no explicit security headers such as Content Security Policy, HSTS, or X-Frame-Options were detected in the provided content. There is no visible vulnerability disclosure or incident response information, which limits transparency in security management. Privacy compliance is weak, with no privacy or cookie policies found, potentially exposing the company to regulatory risks under GDPR. No exposed sensitive data or vulnerable libraries were identified from the HTML content, but the absence of security best practices and policies suggests a need for enhanced security governance. Implementing comprehensive security headers, publishing privacy and cookie policies, and establishing vulnerability disclosure mechanisms would strengthen the security posture significantly.

Recommendations

  1. Publish comprehensive privacy and cookie policies to ensure GDPR compliance and build user trust.
  2. Implement and configure security headers such as CSP, HSTS, and X-Frame-Options to enhance protection against common web attacks.
  3. Establish a vulnerability disclosure program and incident response contact information to improve transparency and security readiness.
  4. Verify and update WHOIS registration information to ensure domain legitimacy and reduce suspicion.
  5. Enhance website security culture by regularly auditing third-party scripts and advertising integrations for vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Nettiauto
Description
Suomen suurin autojen verkkokauppapaikka. Löydä unelmiesi auto tai myy autosi helposti.
Key services
Vehicle listings, Vehicle sales platform
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, JavaScript, CSS, HTML5
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Ad networks
Adnami
Transparency
basic

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 and structured data.
  2. No WHOIS registration data found, which is unusual for an active commercial site.
  3. No explicit privacy, cookie, or terms of service policies detected in the provided HTML content.
  4. Contact information limited to phone numbers in structured data; no emails or physical addresses found.
  5. Use of Google Tag Manager and Adnami advertising scripts detected.
  6. No visible security headers or explicit security best practices found in HTML content.
  7. No evidence of vulnerability disclosure or incident response information.
  8. Website content is professional, focused on vehicle marketplace in Finland.
  9. No adult or NSFW content detected.
Technical notes

Notes

The website employs modern web technologies including JavaScript, CSS, and Google Tag Manager for analytics and marketing. Advertising is managed through Adnami, indicating monetization strategies. The site is mobile optimized with responsive design and accessibility features such as focus-visible outlines. SEO optimization is good with proper meta tags and Open Graph data. However, no CMS or hosting provider information was detected. Performance is moderate, likely influenced by external scripts. The absence of visible security headers and privacy policies indicates technical debt in security and compliance areas. Opportunities exist to modernize security configurations and improve transparency through policy publication and WHOIS data accuracy.
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

Earlier scans of this domain

  1. 70/100Medium27 findingsView report
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