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Security report for mediamath.com

MediaMath · Technology · N/a

Medium risk. 5 critical or high findings in Security headers and SSL/TLS.

Security score

68/100

Risk levelMedium

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

MediaMath is a well-established digital advertising technology company specializing in providing an omnichannel demand-side platform (DSP) for brands and agencies. Recently acquired by Infillion, MediaMath leverages cutting-edge programmatic buying technology to deliver responsive and accountable advertising solutions across multiple channels including CTV and identity management. The company positions itself as a future-proofed DSP with a strong focus on transparency, data-driven targeting, and partnership ecosystems. The website reflects a professional and consistent brand image with comprehensive content aimed at marketing professionals and advertisers. Technically, the website is built on WordPress with modern plugins such as WPBakery Page Builder and Smart Slider 3, integrating marketing and analytics tools like Marketo Munchkin and Google Tag Manager. The site is mobile optimized and demonstrates good SEO and accessibility practices, although some accessibility features could be enhanced. Performance is moderate, with a clean and structured layout supporting user engagement. From a security perspective, the site uses HTTPS and implements privacy and cookie policies compliant with GDPR. However, explicit security policies, incident response details, and vulnerability disclosure mechanisms are not publicly available, which could be improved to enhance trust and transparency. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. The absence of WHOIS data is noted but likely due to privacy or registry restrictions rather than malicious intent. Overall, MediaMath presents a low-risk profile with strong business credibility and a mature digital presence. Strategic recommendations include publishing detailed security policies, adding vulnerability disclosure information, and improving accessibility and contact transparency to further strengthen security posture and user trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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

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 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. 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 mediamath.com

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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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
65
DNS health
80
Network security
100
GDPR outside view
95
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

MediaMath operates in the competitive ad tech industry, offering a sophisticated DSP platform that supports omnichannel advertising including CTV and identity solutions. Its acquisition by Infillion enhances its market position by combining unique first-party data and programmatic technology. The business model focuses on providing scalable, data-driven advertising solutions to brands and agencies, emphasizing transparency and supply chain trust. Partnerships with major players like IBM Watson Advertising indicate strong industry relationships. The company targets medium to large enterprises seeking advanced digital marketing capabilities. Growth indicators include technology evolution, ecosystem modernization, and expanding service offerings. The website content and social media presence support a professional and credible market image.

Security posture

MediaMath demonstrates a mature security posture with HTTPS enforced and privacy policies aligned with GDPR requirements. The presence of cookie consent mechanisms and privacy management scripts indicates compliance with data protection regulations. However, the lack of publicly available security policies, incident response contacts, and vulnerability disclosure programs suggests areas for improvement. No direct contact emails or phone numbers for security incidents were found, which may hinder incident reporting. The website does not expose sensitive data or use outdated libraries, reflecting good security hygiene. Enhancing transparency around security frameworks and incident handling would improve overall security maturity and stakeholder confidence.

Recommendations

  1. Publish a dedicated security policy page detailing security frameworks and practices.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Provide clear contact information for security incidents including dedicated email addresses.
  4. Enhance website accessibility to meet higher standards for all users.
  5. Regularly review and update third-party scripts and plugins to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
MediaMath
Description
We deliver the most responsive, accountable and performant digital advertising technology for brands to buy addressable media.
Key services
Demand Side Platform (DSP), CTV Advertising Solutions, Identity Solutions, Omnichannel Campaign Management
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, WPBakery Page Builder, Smart Slider 3, Google Tag Manager, Marketo Munchkin, jQuery, Bootstrap, Font Awesome
Frameworks
WordPress
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Privacy policy and cookie consent implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Marketo Munchkin, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Marketo Munchkin
Marketing tools
Marketo
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and professional design.
  2. Strong branding and consistent messaging about digital advertising technology.
  3. No direct company contact emails or phone numbers visible; contact via forms only.
  4. Privacy and cookie policies are present and GDPR compliant.
  5. No explicit security policy or incident response information found.
  6. No WHOIS data available from raw output; domain appears legitimate based on website content.
  7. Use of modern web technologies and marketing analytics tools.
  8. Social media presence across major platforms.
  9. No adult or questionable content detected.
Technical notes

Notes

The website is powered by WordPress CMS with WPBakery Page Builder and Smart Slider 3 for content management and presentation. It integrates marketing automation and analytics tools such as Marketo Munchkin and Google Tag Manager, enabling sophisticated user tracking and campaign measurement. The site uses modern CSS frameworks like Bootstrap and icon fonts such as Font Awesome. Performance is moderate with room for optimization, especially for mobile devices. The site is SEO optimized with proper meta tags and structured data (JSON-LD) for enhanced search engine visibility. Technical risks are minimal but include reliance on multiple third-party scripts which require ongoing security monitoring. The infrastructure appears stable and professionally maintained, supporting the company’s digital marketing objectives 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

Earlier scans of this domain

  1. 63/100Medium27 findingsView report
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