Skip to main content

Security report for openx.com

OpenX · Technology · United States

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

71/100

Risk levelMedium

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

OpenX operates as an independent supply-side platform specializing in programmatic advertising, facilitating a transparent and fair value exchange between publishers and advertisers. The company targets digital media buyers and publishers, offering omnichannel targeting capabilities including connected TV (CTV) and premium inventory access. Their market position is that of a large, innovative technology company focused on transparency, sustainability, and addressability in advertising. Technically, the website is built on WordPress with modern JavaScript libraries and analytics tools such as HubSpot, Google Tag Manager, and LinkedIn Insight, indicating a mature digital infrastructure. The site is well-optimized for SEO, mobile responsive, and provides a professional user experience. Security posture is good with HTTPS enforced and no visible vulnerabilities, though explicit security headers and incident response contacts are not publicly disclosed. Privacy compliance is strong with comprehensive policies and consent mechanisms in place. However, WHOIS data is missing or unavailable, which slightly impacts trustworthiness but does not outweigh the strong business and technical indicators. Overall, OpenX presents a credible and professional online presence with room for improvement in security transparency and WHOIS data clarity.

Scanned

This is an earlier scan of openx.com. View the latest report

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

4 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 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 Policy found

      GDPR requires clear information about cookie usage

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

  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 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 openx.com

This scan found 21 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
65
Security headers
50
Email security
55
DNS health
85
Network security
100
GDPR outside view
68
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

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

OpenX holds a significant position in the programmatic advertising ecosystem as an independent SSP, serving over 2 million direct publisher domains and 200,000 brands. Their business model revolves around providing technology and marketplace solutions that enable efficient ad buying and selling with a focus on data interoperability and sustainability. The company leverages partnerships and a curated ecosystem to maintain high-quality inventory and demand. Their marketing and analytics stack supports extensive data collection and audience targeting, which is critical for their business operations. The presence of testimonials and press coverage further strengthens their market credibility. Growth indicators include new product launches and integrations, such as the Polk Automotive Solutions partnership. The company’s digital footprint is consistent and professional, targeting advertisers and publishers globally with localized content for US and international audiences.

Security posture

OpenX demonstrates a mature security posture with HTTPS enforced across the site and no exposed sensitive information in the HTML content. The use of reputable third-party analytics and marketing scripts is evident, though the site lacks explicit security headers such as Content-Security-Policy and X-Frame-Options, which are recommended best practices. There is no publicly available security policy or incident response contact information, which could be improved to enhance transparency and readiness. No vulnerability disclosures or security.txt files were found. The absence of WHOIS data raises minor concerns about domain registration transparency but does not directly impact site security. Overall, the security posture is solid but could benefit from enhanced header policies and public security documentation.

Recommendations

  1. Implement and publish explicit security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen browser security.
  2. Publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting and improve trust.
  3. Provide clear incident response contact information on the website to demonstrate readiness and transparency.
  4. Investigate and clarify WHOIS domain registration data to improve legitimacy and trust signals.
  5. Regularly audit third-party scripts and dependencies to ensure no vulnerable libraries are in use.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
OpenX
Description
OpenX is the most dynamic independent supply-side platform and delivers a fair and transparent value exchange between publishers and advertisers to help power the open web.
Key services
Programmatic advertising exchange, Omnichannel targeting including CTV, Premium inventory supply, Data and identity solutions
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Bootstrap, Yoast SEO, HubSpot Analytics, Google Tag Manager, LinkedIn Insight Tag, Flickity Carousel
Frameworks
WordPress
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of secure analytics and marketing scripts

Analytics and tracking

Services
HubSpot Analytics, Google Analytics (via GTM), LinkedIn Insight
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
OpenX Exchange
Tracking pixels
HubSpot Analytics, LinkedIn Insight
Marketing tools
HubSpot
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 rich, professional, and targeted to advertising industry stakeholders.
  3. Strong presence of privacy and legal policies indicating compliance focus.
  4. Use of multiple modern analytics and marketing tools.
  5. No explicit security policy or incident response information publicly available.
  6. WHOIS data is missing or unavailable, which reduces trust slightly.
  7. No adult or questionable content detected; safe for general audiences.
Technical notes

Notes

The website is built on WordPress CMS with a modern front-end stack including jQuery, Bootstrap, and Flickity for UI components. It integrates multiple marketing and analytics tools such as HubSpot, Google Tag Manager, and LinkedIn Insight, indicating a sophisticated data collection and marketing infrastructure. The site is mobile optimized and SEO friendly, leveraging Yoast SEO plugin and structured data (JSON-LD) for enhanced search visibility. Performance is moderate, with potential improvements in loading speed by optimizing scripts and assets. Accessibility features are present but could be further enhanced. The technical implementation supports a professional and scalable digital presence suitable for a large technology company in the advertising sector.
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. 63/100 −8Medium26 findingsView report
  2. 71/100 +1Medium31 findingsView report
  3. 70/100Medium25 findingsView report
Reviews of this site

Share your experience with openx.com. 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 openx.com.

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.