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Security report for dianomi.com

Dianomi · Finance · United Kingdom

Low risk. 3 critical or high findings in GDPR outside view and SSL/TLS.

Security score

79/100

Risk levelLow

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

Dianomi operates a premium digital advertising platform specializing in contextual and native advertising targeted at affluent audiences interested in finance, business, and lifestyle sectors. The company partners with over 320 premium publishers globally and reaches over 510 million devices, positioning itself as a trusted marketplace for advertisers and publishers alike. The website reflects a mature digital presence with modern technologies, strong SEO, and comprehensive privacy compliance. Security posture is robust with HTTPS, security headers, and CAPTCHA protections, though explicit security policies and incident response contacts are not published. Overall, Dianomi presents as a credible and professional business with a strong market position in financial digital advertising.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 100 · Low
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

3 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.

    • 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. 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 Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • 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 dianomi.com

This scan found 19 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.

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Full report

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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
52
Security headers
75
Email security
80
DNS health
85
Network security
100
GDPR outside view
80
Average
79

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

Dianomi's business model focuses on connecting premium advertisers with high-value audiences through contextual ad placements on reputable publisher sites. Their client base includes major financial institutions and global brands, supported by a network of international offices. The platform's ability to deliver targeted advertising at scale, combined with strong privacy and compliance measures, provides competitive advantages. The company leverages partnerships and technology integrations to maintain market leadership and drive revenue growth. Testimonials and certifications further reinforce trust and credibility in the marketplace.

Security posture

The website demonstrates a high level of security maturity with enforced HTTPS, use of security headers, and CAPTCHA on forms to prevent abuse. Privacy compliance is well managed with a consent management platform and clear cookie policies. However, the absence of a dedicated security policy, incident response information, and vulnerability disclosure mechanisms indicates room for improvement in transparency and readiness. No vulnerabilities or exposed sensitive data were detected in the analysis. Overall, the security posture is strong but could benefit from enhanced communication of security practices.

Recommendations

  1. Publish a dedicated security policy page outlining security controls and practices.
  2. Provide clear incident response contact details to improve transparency and trust.
  3. Implement a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Consider publishing Data Protection Officer contact information to enhance GDPR compliance visibility.
  5. Regularly review and update third-party scripts and dependencies to mitigate potential vulnerabilities.

Contact details published on the site

Legal name
Dianomi
Registration number
4513809
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Dianomi
Description
Dianomi is a premium advertising platform that enables brands to reach affluent and engaged audiences through contextual advertising on premium publisher websites, focusing on finance, business, and lifestyle sectors.
Key services
Contextual advertising, Native ad placements, Premium publisher partnerships, Audience targeting in finance and business sectors
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Yoast SEO, Google Tag Manager, Google reCAPTCHA v2, GSAP (GreenSock Animation Platform), Flickity carousel, Locomotive Scroll, jQuery
Frameworks
WordPress
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA on forms
  • Consent management platform for GDPR compliance
  • No exposed sensitive data in HTML
  • Use of security headers

Analytics and tracking

Services
Google Tag Manager, LinkedIn Insight
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
InMobi, CloudAmp, LinkedIn Ads
Tracking pixels
LinkedIn Insight Tag
Marketing tools
Pardot Forms
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well maintained
  2. Strong focus on finance and premium advertising marketplace
  3. Comprehensive privacy and cookie compliance with consent management
  4. Multiple client testimonials and trust signals present
  5. Use of modern web technologies and SEO best practices
  6. No signs of malicious or suspicious content
  7. WHOIS data unavailable, which is unusual but not necessarily suspicious
Technical notes

Notes

The website is built on WordPress CMS with a modern tech stack including GSAP for animations, Flickity for carousels, and Google Tag Manager for analytics. It uses Yoast SEO for optimization and integrates Google reCAPTCHA for form security. The site is mobile-optimized with responsive design and accessibility features. Performance is fast with preloading of fonts and lazy loading of images. Hosting details are not explicitly identified but the use of CDN and external services suggests a robust infrastructure. Overall, the technical implementation supports a high-quality user experience and strong SEO performance.
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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