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Security report for pubmatic.com

PubMatic · Technology · United States

Low risk. 1 critical or high finding in GDPR outside view.

Security score

80/100

Risk levelLow

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

PubMatic is a well-established programmatic advertising technology company founded in 2006, providing a comprehensive platform for publishers, buyers, and commerce media clients. The company positions itself as a leader in the digital advertising supply chain, offering innovative solutions to maximize customer value and control. The website reflects a mature digital presence with rich multimedia content, clear navigation, and strong branding consistency. Technically, the site is built on WordPress with modern JavaScript libraries and integrates multiple tracking and marketing tools, indicating a high level of digital maturity. Security posture is solid with HTTPS enforced and domain registration protections in place, though there is room for improvement in DNSSEC adoption and explicit security policy disclosures. Privacy compliance is well addressed with comprehensive privacy and cookie policies, supporting GDPR adherence. Overall, the site demonstrates high professionalism and trustworthiness, suitable for an enterprise-level technology company.

Scanned

This is an earlier scan of pubmatic.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

1 finding 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

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Keep watching pubmatic.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.

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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
90
Security headers
70
Email security
70
DNS health
80
Network security
100
GDPR outside view
68
Average
80

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

PubMatic operates in the technology and media sectors, focusing on programmatic advertising solutions that serve publishers and buyers globally. The business model revolves around providing a supply-side platform (SSP) and related products that enable efficient monetization and media buying. The company has a strong market position supported by a global infrastructure, a large employee base, and recognized certifications such as Great Place to Work. Their ecosystem includes partnerships and events that enhance their industry presence. The website content and case studies highlight growth indicators and strategic collaborations, reinforcing their competitive advantage in the ad tech space.

Security posture

The security maturity of PubMatic's website is good, with HTTPS enforced and domain registration status flags that prevent unauthorized changes. However, the absence of DNSSEC and lack of published security policies or incident response contacts are notable gaps. No vulnerabilities or exposed sensitive data were detected in the analysis. The site uses modern libraries but does not explicitly disclose vulnerability disclosure programs or security.txt files, which could enhance transparency and trust. Overall, the security posture supports business continuity and customer trust but could benefit from enhanced security communication and DNS hardening.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Publish a dedicated security policy and incident response contact information on the website.
  3. Implement and report standard security headers such as Content-Security-Policy and X-Frame-Options.
  4. Create and maintain a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  5. Regularly audit and update third-party libraries to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
PubMatic
Description
PubMatic is a sell-side advertising technology company that maximizes customer value and puts clients in control of their digital advertising business through an integrated, omnichannel platform and superior customer service.
Key services
Programmatic monetization solutions for publishers, Media buying platforms for buyers, Commerce media solutions
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery 3.7.1, Bootstrap 5.3.3, GSAP 3.9.1, Slick Carousel, Zoomify, Splide Carousel, Vimeo Player API, Google Tag Manager, Ketch Tag Management
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Domain status includes clientDeleteProhibited, clientRenewProhibited, clientTransferProhibited, clientUpdateProhibited

Analytics and tracking

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

Advertising

Ad networks
PubMatic SSP
Tracking pixels
Ketch Tag Management
Marketing tools
Pardot
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 multimedia.
  2. Strong SEO and metadata implementation including Open Graph and JSON-LD structured data.
  3. Multiple social media links and verified company presence.
  4. No exposed sensitive data or security misconfigurations detected.
  5. Use of modern JavaScript libraries and WordPress CMS.
  6. Privacy and cookie policies are present and comprehensive.
  7. No explicit security policy or incident response information publicly available.
  8. No vulnerability disclosure or security.txt found.
  9. Domain WHOIS data supports legitimacy and long-term operation.
Technical notes

Notes

The website is built on WordPress CMS and leverages a modern tech stack including jQuery, Bootstrap, GSAP, and multiple carousel libraries for rich user experience. It integrates third-party services such as Vimeo for video content, Google Tag Manager for analytics, and Ketch for tag management. Performance is moderate with good mobile optimization and SEO practices. Accessibility is basic but could be improved. Hosting details are not explicit but DNS is managed via NS1. The site uses multiple external domains for content delivery and tracking, all reputable. Overall, the technical infrastructure is robust and supports the company's digital marketing and 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

Earlier scans of this domain

  1. 79/100 −1Low26 findingsView report
  2. 80/100 +1Low25 findingsView report
  3. 79/100Low26 findingsView report
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