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Security report for simpli.fi

Programmatic DSP & Advertising Automation Platform | Simpli.fi · Media · Ireland

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

Security score

68/100

Risk levelMedium

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

Simpli.fi is a leading advertising technology company specializing in programmatic demand-side platform (DSP) and advertising automation solutions. Established in 2011, the company serves over 2,000 agencies and brands, offering advanced media buying and software management solutions that leverage unstructured data for precise audience targeting and measurable results. Their platform supports multiple advertising channels including CTV, addressable TV, geo-fencing, mobile, display, native, audio, and social media, positioning them as a comprehensive solution provider in the AdTech space. Technically, Simpli.fi employs modern web technologies such as React and Next.js, hosted on WP Engine, ensuring fast performance, mobile optimization, and excellent user experience. The site integrates various marketing and analytics tools including Google Tag Manager, Facebook Pixel, LinkedIn Insight Tag, Bing Ads, and FullStory, reflecting a mature digital marketing infrastructure. Their SEO and accessibility practices are robust, contributing to high content quality and discoverability. From a security perspective, the website enforces HTTPS, implements multiple security headers, and secures user input forms with privacy agreements. However, DNSSEC is not enabled, and there is no publicly available security policy or incident response contact, which are areas for improvement. No vulnerabilities or exposed sensitive data were detected, indicating a strong security posture overall. Overall, Simpli.fi demonstrates a high level of business credibility, technical sophistication, and privacy compliance. The domain registration is consistent with the company's history and market presence, and the website content is professional and trustworthy. Strategic recommendations include enabling DNSSEC, publishing a formal security policy, and establishing a vulnerability disclosure program to further enhance trust and security maturity.

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

6 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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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';…

  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

  3. 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

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

Keep watching simpli.fi

This scan found 22 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. See sample alerts.

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
52
Security headers
15
Email security
85
DNS health
90
Network security
100
GDPR outside view
68
Average
68

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

Simpli.fi operates in the competitive AdTech industry, focusing on programmatic advertising and workflow automation. Their business model revolves around providing a DSP platform and software solutions that streamline media buying and campaign management for agencies and brands. The company targets medium to large enterprises in advertising, marketing, and media sectors. Their extensive service offerings and integrations with major ad networks and analytics platforms indicate a strong ecosystem and partnership network. Growth indicators include a large client base and continuous content updates with industry insights. The company maintains a consistent brand presence across multiple social media channels, enhancing market visibility and customer engagement.

Security posture

The website exhibits a mature security posture with enforced HTTPS, comprehensive security headers, and secure form handling. The absence of DNSSEC is a minor gap in DNS security. No evidence of malware, phishing, or exposed credentials was found. Privacy compliance is supported by detailed privacy and cookie policies and a consent mechanism. However, the lack of a published security policy or incident response contact limits transparency in security governance. The use of multiple third-party tracking and marketing tools necessitates ongoing privacy and security monitoring. Overall, the security maturity is high but can be improved with formalized policies and DNS security enhancements.

Recommendations

  1. Enable DNSSEC to improve DNS integrity and prevent spoofing attacks.
  2. Publish a comprehensive security policy and incident response contact information on the website.
  3. Implement a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  4. Regularly audit third-party scripts and tracking tools to ensure privacy compliance and minimize risk.
  5. Maintain and update privacy and cookie policies to reflect evolving regulations and best practices.

Contact details published on the site

Addresses
Legal name
Programmatic DSP & Advertising Automation Platform | Simpli.fi
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Programmatic DSP & Advertising Automation Platform | Simpli.fi
Description
Simpli.fi, the leader in advertising success, helps 2,000+ agencies & brands maximize their relevance with measurable results.
Key services
Demand-Side Platform (DSP), Media Buying Solutions, Software Management Solutions, Programmatic Media, Omnichannel Advertising
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Facebook Pixel, LinkedIn Insight Tag, Bing Ads, FullStory, Vimeo (video hosting)
Frameworks
Next.js
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Secure forms with privacy agreement checkbox

Analytics and tracking

Services
Google Analytics (via GTM), FullStory
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Bing Ads, Google Ads, Facebook Ads, LinkedIn Ads
Tracking pixels
Facebook Pixel, LinkedIn Insight Tag, FullStory
Marketing tools
Warmly Widget, G2 Crowd 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 rich content and no blocking mechanisms.
  2. Strong focus on advertising technology and programmatic media buying.
  3. Comprehensive legal and privacy documentation present.
  4. Multiple social media and external integrations for marketing and analytics.
  5. Modern web technologies and frameworks used for performance and UX.
  6. No signs of suspicious or malicious activity detected.
Technical notes

Notes

Simpli.fi's website is built on a modern technology stack featuring React and Next.js, hosted on WP Engine, which supports fast loading times and excellent mobile responsiveness. The site uses advanced SEO techniques including structured data (JSON-LD), Open Graph tags, and meta tags to optimize search engine visibility. Integration with multiple analytics and marketing platforms demonstrates a sophisticated digital marketing infrastructure. Accessibility features and responsive design contribute to a positive user experience. The technical implementation is robust with no visible technical debt or performance bottlenecks, positioning the company well for scalability and future enhancements.
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. 72/100Medium28 findingsView report
  2. 72/100 +2Medium28 findingsView report
  3. 70/100Medium26 findingsView report
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