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Security report for adevinta.com

Adevinta · E-commerce · N/a

Low risk. 2 critical or high findings in Security headers and GDPR outside view.

Security score

85/100

Risk levelLow

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

Adevinta is a prominent online classifieds group operating digital marketplaces primarily across Europe. The company focuses on sustainable commerce, promoting reuse and circular economy principles through its various brands and platforms. Their market position is strong, with a large footprint in e-commerce sectors including real estate, mobility, and job listings. The website reflects a professional and modern digital presence, leveraging WordPress CMS with SEO and tracking integrations such as Yoast SEO and Google Tag Manager. Security posture is solid with HTTPS enforced and domain protections in place, though there is room for improvement in DNSSEC and security headers. Privacy compliance is well addressed with clear cookie consent and privacy policies. Overall, the site is trustworthy and well-structured, targeting a general audience interested in digital marketplaces and sustainable commerce.

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

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. GDPR outside view

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

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

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

Keep watching adevinta.com

This scan found 13 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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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
95
Security headers
65
Email security
98
DNS health
85
Network security
100
GDPR outside view
68
Average
85

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 adevinta.com, from OffSeq Breach.

Total records
373
Employees
3
Customers
4
Third parties
366
Weak passwords
7%

Latest record dated 2025-11-04 · 4 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 adevinta.com.

Select it in the checkout above.

Masked preview

  • –wave.adevinta.com2025-11-04
  • –avenues.adevinta.com2025-10-31
  • –avenues.adevinta.com2025-09-01

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

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

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

Business context

Business profile

Adevinta operates a multi-brand business model with subsidiaries spanning various classifieds verticals. Their competitive advantage lies in their scale and commitment to sustainability, which aligns with current market trends favoring circular economy solutions. Revenue streams likely include advertising, listing fees, and premium services across their marketplaces. The company targets consumers and businesses seeking to buy, sell, or rent goods and services online. Their partnership ecosystem includes multiple regional brands, enhancing market penetration. Strategic observations indicate a focus on technology-driven growth and corporate governance transparency.

Security posture

The website demonstrates a mature security posture with HTTPS enabled and domain status flags that prevent unauthorized transfers or deletions. Use of Google reCAPTCHA on forms mitigates automated abuse. However, the absence of DNSSEC and additional security headers such as Content-Security-Policy and Strict-Transport-Security represents an opportunity for enhancement. No incident response or security contact information is publicly available, which could hinder timely vulnerability reporting. No known vulnerabilities or exposed sensitive data were detected in the site content. Compliance with GDPR is indicated by privacy and cookie policies with consent mechanisms.

Recommendations

  1. Enable DNSSEC to protect against DNS spoofing and improve domain security.
  2. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Publish a dedicated security policy and provide clear incident response contact channels.
  4. Consider adding a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  5. Regularly audit third-party scripts and dependencies to ensure no vulnerable libraries are used.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Adevinta
Description
Adevinta is a leading online classifieds group, operating digital marketplaces across Europe and beyond.
Key services
Digital marketplaces, Online classifieds, Re-commerce, Real estate listings, Mobility services, Job listings
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Yoast SEO, Google reCAPTCHA, Google Tag Manager, jQuery, Swiper.js
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enabled
  • Use of reCAPTCHA for forms
  • ClientDeleteProhibited, clientTransferProhibited, clientUpdateProhibited domain statuses

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
CookieYes
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 uses WordPress CMS with modern SEO and tracking tools.
  2. Strong focus on sustainable commerce and corporate governance.
  3. Multiple language support with clear navigation.
  4. No exposed sensitive data or security issues detected in HTML content.
  5. No direct contact emails or phone numbers found on homepage; contact likely via forms.
  6. No explicit security policy or incident response contact published.
  7. Cookie consent mechanism implemented via CookieYes.
  8. No security.txt or vulnerability disclosure page found.
Technical notes

Notes

The website is built on WordPress CMS with modern SEO and analytics tools integrated, including Yoast SEO and Google Tag Manager. The hosting and DNS infrastructure is managed via Amazon Registrar and AWS DNS services, indicating reliable cloud hosting. Performance is moderate with good mobile optimization and accessibility features. The site uses common JavaScript libraries such as jQuery and Swiper.js for UI components. There is some technical debt in the form of missing advanced security headers and lack of DNSSEC. Overall, the technical implementation supports a professional and scalable digital presence but could benefit from security hardening and performance tuning.
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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