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Security report for yaleo.com

audienzz AG · Media · Switzerland

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

Security score

71/100

Risk levelMedium

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

Yaleo is a Swiss digital advertising platform operated by audienzz AG, offering premium advertising formats such as Story Ads, Video Ads, and Native Ads across a network of over 200 Swiss premium publisher websites. The platform targets advertisers seeking high-quality, brand-safe placements with strong reach and engagement in the Swiss market. The website is professionally designed, multilingual, and provides clear contact information and legal disclosures, reflecting a mature business presence. Technically, the website is built on the Webflow CMS platform, leveraging modern web technologies including Google Tag Manager and Cloudflare DNS. It demonstrates fast performance, excellent mobile optimization, and good SEO practices. However, some security best practices such as DNSSEC and security headers are not implemented, representing areas for improvement. From a security perspective, the site uses HTTPS with a good SSL configuration and secure forms. No vulnerabilities or exposed sensitive data were detected. Privacy compliance is partial, with a comprehensive privacy policy linked externally but lacking a visible cookie consent mechanism. Business credibility is high, supported by certifications and partnerships with major Swiss publishers. Overall, the website presents a low-risk profile with strong business credibility and technical maturity. Strategic improvements in security headers, cookie consent, and incident response disclosures would further enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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 X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

  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

    • 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

  3. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • High

      No DMARC record found

      DMARC provides email authentication and reporting

      What to do: Add DMARC record: "v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com"

  4. 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

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

Keep watching yaleo.com

This scan found 18 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
75
Security headers
45
Email security
65
DNS health
85
Network security
100
GDPR outside view
53
Average
71

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 yaleo.com, from OffSeq Breach.

No leaked records found

Breach holds no records for yaleo.com right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

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

Yaleo operates in the Swiss digital media sector, focusing on delivering innovative advertising formats to advertisers and publishers. Its competitive advantage lies in its curated network of premium Swiss publishers and advanced ad formats that blend native, video, and story-based advertising. The business model is performance and brand-safety oriented, targeting advertisers who value quality placements and measurable engagement. Revenue streams likely include CPM, CPC, and engagement-based advertising fees. The company shows growth potential through partnerships with leading Swiss media and certifications from industry bodies. The multilingual website and localized content indicate a strategic focus on the Swiss market's linguistic diversity.

Security posture

The website demonstrates a moderate to strong security posture with HTTPS enforced and secure form handling. However, the absence of DNSSEC and security headers such as Content-Security-Policy and Strict-Transport-Security reduces the overall security robustness. No incident response or vulnerability disclosure information is publicly available, which could hinder rapid response to security events. Privacy compliance is partial, with a comprehensive privacy policy but no cookie consent mechanism detected. There are no signs of vulnerabilities or exposed sensitive data. Overall, the security maturity is adequate for the business size but can be improved to meet higher compliance standards such as GDPR and NIS2.

Recommendations

  1. Implement DNSSEC to enhance DNS security and prevent spoofing.
  2. Add security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Deploy a cookie consent banner/mechanism to ensure GDPR compliance.
  4. Publish a security policy and incident response contact information on the website.
  5. Consider creating a vulnerability disclosure policy or security.txt file to encourage responsible reporting.

Contact details published on the site

Addresses
Legal name
audienzz AG
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
audienzz AG
Description
Yaleo bietet performanceorientierte Digital Marketing Lösungen für den Schweizer Markt – mit hochwertigen Platzierungen, vertrauensvollem Umfeld und starker Reichweite im Open Web.
Key services
Yaleo Story Ad, Yaleo Video Ad, Yaleo Native Ad, Ad production and placement
Content quality
excellent
Branding
consistent

Technology

Stack
Webflow, Google Tag Manager, Google Analytics, Cloudflare DNS, jQuery
Frameworks
Webflow CMS
Platforms
Webflow hosting
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Secure form with required email input

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
Google Ads
Tracking pixels
Google Ads Conversion Tracking
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professional, well-structured, and targeted at Swiss digital advertising market.
  3. Multiple language versions available (DE, EN, FR) indicating localization efforts.
  4. Contact information is clearly provided including email, phone, physical address, and contact form.
  5. No explicit cookie consent mechanism detected, which may be a compliance gap.
  6. Security headers are not explicitly visible in HTML; recommend adding for enhanced security.
  7. Use of modern web technologies and CDN for performance optimization.
  8. Strong trust signals from partnerships and certifications.
  9. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on the Webflow CMS platform, utilizing modern front-end technologies and hosted on a performant CDN infrastructure. It uses Google Tag Manager and Google Analytics for tracking and marketing optimization. The site is mobile-optimized with responsive design and fast loading times. The HTML and CSS are valid and well-structured, supporting good SEO and accessibility. The use of external fonts and scripts is optimized with preconnect hints. Technical risks include the lack of DNSSEC and missing security headers, which could expose the site to DNS attacks and clickjacking. Overall, the technical implementation is modern and robust, supporting the business goals effectively.
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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