Skip to main content

Security report for plakate-buchen.de

Ströer · Media · Germany

Medium risk. 6 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

63/100

Risk levelMedium

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

Plakate-Buchen.de is an online advertising booking platform operated by Ströer, focusing on poster and campaign advertising across Germany. The platform offers access to over 300,000 advertising locations with daily updated availability and convenient online payment options, targeting businesses seeking to promote their stores or campaigns locally. The website is primarily in German and provides a phone contact for customer inquiries but lacks visible email contacts or terms of service. Technically, the site runs on an Apache server with modern TLS protocols (TLS 1.3 and 1.2) and uses Google Tag Manager for analytics and tracking. Security headers such as Strict-Transport-Security and X-Content-Type-Options are present, but improvements are needed in HSTS configuration, OCSP stapling, DMARC, DNSSEC, and certificate transparency compliance. The site implements cookie consent with express consent type, aligning with basic GDPR requirements but lacks comprehensive privacy and security policies. Overall, the platform demonstrates a moderate security posture with room for enhancement in email security and transport layer protections.

Scanned

NIS2 and GDPR posture

GDPR outside view
18/ 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

6 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 Cookie Policy found

      GDPR requires clear information about cookie usage

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

    • 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

  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 plakate-buchen.de

This scan found 23 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

Email alerts on material changes and an exportable JSON history of every change.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

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
87
Security headers
40
Email security
70
DNS health
75
Network security
85
GDPR outside view
18
Average
63

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

The business operates in the media sector, providing a digital platform for booking advertising posters and campaigns. Its competitive advantage lies in the extensive network of over 300,000 locations and daily updated availability, appealing to local businesses and advertisers. The business model is based on online bookings and payments for advertising space. The target customers are businesses seeking to increase visibility and sales through poster advertising. The company leverages partnerships with 123plakat.de and Sophos for email security and SPF configurations. Growth indicators include the integration of online payment options and real-time availability. The absence of visible email contacts and terms of service may limit customer trust and transparency. The platform's moderate size and consistent branding support its market position in Germany.

Security posture

The website exhibits a moderate security maturity level with key strengths including the use of HTTPS with modern TLS protocols, presence of important security headers, and cookie consent implementation. However, critical gaps exist such as lack of DMARC records, absence of DNSSEC and CAA records, no OCSP stapling, and incomplete HSTS deployment. These gaps expose the domain to potential email spoofing, DNS attacks, and weaker transport security. The lack of a published security policy or incident response contact reduces transparency and preparedness for security incidents. The cookie consent mechanism aligns with GDPR basics but the privacy policy quality is basic and does not confirm full compliance. Overall, the security posture is adequate for a medium-sized media business but requires improvements to meet higher compliance and security standards.

Recommendations

  1. Enable full HSTS with includeSubDomains and preload to strengthen HTTPS enforcement.
  2. Implement OCSP stapling to improve SSL certificate revocation checking and reduce latency.
  3. Publish and enforce a DMARC policy to protect against email spoofing and phishing.
  4. Deploy DNSSEC and CAA records to enhance DNS security and restrict certificate issuance.
  5. Develop and publish a comprehensive security policy and incident response plan with clear contact channels.
Technical notes

Notes

The website is hosted on an Apache server with a valid SSL certificate supporting TLS 1.3 and 1.2 protocols, indicating a modern and secure transport layer. The DNS setup includes multiple authoritative nameservers but lacks DNSSEC and CAA records, which are recommended for enhanced DNS and certificate security. The site uses JavaScript and CSS for frontend functionality and styling, with Google Tag Manager integrated for analytics and tracking. Performance metrics indicate fast load times, though no detailed resource counts or page size data are available. Mobile optimization is basic with responsive meta tags and some CSS media queries. No CMS or major frameworks are detected, suggesting a custom or lightweight platform. The hosting provider is managed-ip.com, a managed hosting service. Overall, the technical infrastructure is solid but can benefit from improved DNS security and enhanced SSL features.
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

Reviews of this site

Share your experience with plakate-buchen.de. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review plakate-buchen.de.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.