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Security report for annonce.cz

Annonce · Retail · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

60/100

Risk levelMedium

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

Annonce.cz is a Czech Republic-based classifieds platform offering free and paid advertisements across multiple categories including vehicles, real estate, jobs, dating, and pets. The site has a mature audience focus with adult and dating content present. Technically, the site uses a modern stack with jQuery, Google Tag Manager, Google Analytics, Hotjar, and a GDPR-compliant consent management platform (Didomi). Security posture is good with HTTPS enforced and standard security headers, but lacks a publicly available security policy or incident response information. The absence of WHOIS data limits domain trust analysis, though the site appears legitimate and well-established since 1997. Overall, the platform is professionally maintained with good content quality and user experience, but could improve transparency around security and incident handling.

Scanned

This is an earlier scan of annonce.cz. View the latest report

NIS2 and GDPR posture

GDPR outside view
10/ 100 · Critical
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

8 findings rated critical or high. Fix these first.

  1. GDPR outside view

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

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

  2. 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';…

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

Keep watching annonce.cz

This scan found 25 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

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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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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
75
Security headers
25
Email security
70
DNS health
80
Network security
100
GDPR outside view
10
Average
60

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 annonce.cz, from OffSeq Breach.

Total records
2,086
Employees
0
Customers
2,086
Third parties
0
Weak passwords
32%

7 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 annonce.cz.

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

Annonce.cz holds a strong position in the Czech online classifieds market, targeting a broad demographic including individuals and businesses seeking to buy, sell, or advertise goods and services. Its business model revolves around free listings supplemented by paid enhancements. The platform integrates multiple advertising and analytics services, indicating a mature digital marketing approach. Partnerships with vlmedia.cz and cpex.cz suggest a broader media and technology ecosystem. The site’s content categories and services reflect a diversified revenue stream and a comprehensive marketplace offering.

Security posture

The website demonstrates a solid security foundation with HTTPS, reCAPTCHA on forms, and a consent management platform ensuring GDPR compliance. Security headers are present, enhancing protection against common web vulnerabilities. However, the lack of a published security policy or incident response contact reduces transparency and preparedness perception. No vulnerabilities or exposed sensitive data were detected in the HTML content. The site should consider publishing a vulnerability disclosure policy and enhancing accessibility compliance to strengthen its security posture further.

Recommendations

  1. Publish a dedicated security policy and incident response page to improve transparency.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Enhance accessibility features to meet recognized standards and improve user inclusivity.
  4. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  5. Maintain and update WHOIS information to improve domain trust and legitimacy.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Annonce
Description
Annonce is an online and print classifieds platform offering free advertisements and a marketplace for various categories including jobs, vehicles, real estate, dating, pets, and more.
Key services
Free classifieds ads, Job listings, Vehicle marketplace, Real estate ads, Dating and personals, Pet classifieds
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.5.1, Google Tag Manager, Google Analytics, Hotjar, Didomi Consent Management Platform, Adobe Dynamic Tag Management, Google reCAPTCHA v2, Gemius Analytics
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of reCAPTCHA for forms
  • Consent management for GDPR compliance
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Gemius, Hotjar
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Adsense, Teads
Tracking pixels
Hotjar, Gemius
Marketing tools
Adobe Dynamic Tag Management
Transparency
good

Site quality

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

Key observations

  1. Website is a well-established Czech classifieds platform with broad category coverage.
  2. Content is rich and professionally structured with clear navigation.
  3. Privacy and cookie policies are present and GDPR compliant with consent mechanisms.
  4. No WHOIS data available, limiting domain registration trust analysis.
  5. Contains adult and dating related content, suitable for mature audiences.
  6. Uses multiple third-party analytics and advertising services with consent management.
  7. No security policy or incident response information publicly available.
  8. No signs of WAF or content blocking; site fully accessible.
Technical notes

Notes

The site uses a combination of jQuery 3.5.1, Google Tag Manager, Google Analytics, Hotjar, and Didomi CMP for tracking and consent management. It employs Google reCAPTCHA v2 for bot protection on forms. The presence of Adobe Dynamic Tag Management and Gemius analytics indicates advanced marketing and audience measurement capabilities. The site is mobile optimized with responsive CSS stylesheets for various screen sizes. Performance is moderate with asynchronous loading of scripts. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not discernible from the content. Overall, the technical infrastructure is modern and supports a good user experience.
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. 60/100Medium33 findingsView report
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