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Security report for pubnub.com

PubNub Inc. · Technology · United States

Low risk. 3 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

85/100

Risk levelLow

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

PubNub Inc. operates a leading real-time developer platform that enables businesses and developers to build, manage, and optimize interactive applications at scale. The company offers a comprehensive suite of real-time APIs and services, including messaging, presence, chat, analytics, and push notifications, serving a broad range of industries and use cases. With a market position as a top provider in the real-time communication space, PubNub targets enterprises and developers requiring scalable, low-latency infrastructure. Technically, the website leverages modern web technologies such as Next.js and React, supported by a robust CMS (Builder.io) and integrates industry-standard tools for cookie consent and analytics. The platform demonstrates excellent performance, mobile optimization, and SEO practices, reflecting a mature digital infrastructure. From a security perspective, PubNub maintains a strong posture with HTTPS enforcement, multiple security headers, and compliance with major frameworks including SOC2, HIPAA, GDPR, CCPA, and ISO 27001. The presence of a bug bounty program and comprehensive privacy and cookie policies further reinforce their commitment to security and privacy. No critical vulnerabilities or suspicious patterns were detected. Overall, PubNub presents a low-risk profile with a professional, trustworthy online presence. Recommendations include publishing explicit incident response contacts and adopting a security.txt file to enhance vulnerability disclosure transparency.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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. 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 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 pubnub.com

This scan found 13 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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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
82
Security headers
55
Email security
100
DNS health
85
Network security
100
GDPR outside view
85
Average
85

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention pubnub.com, from OffSeq Breach.

Total records
3,548
Employees
19
Customers
3,354
Third parties
175
Weak passwords
16%

Latest record dated 2026-05-26 · 30 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for pubnub.com.

Select it in the checkout above.

Masked preview

  • –ngine-setup.pubnub.com2026-05-26
  • –d.pubnub.com2026-01-13
  • –ine-setup.pubnub.com2026-01-12
  • –tup.pubnub.com2026-01-12
  • –ne-quickstart-app.pubnub.com2026-01-12

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

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

Business context

Business profile

PubNub's business model centers on providing a scalable real-time communication platform as a service, monetizing through API usage and enterprise subscriptions. The company serves diverse sectors including technology, digital health, gaming, fintech, and logistics. Their competitive advantages include a global low-latency network, extensive SDK support, and compliance with stringent security standards. The website highlights partnerships and customer success stories, indicating a strong ecosystem and market traction. Growth indicators include new product launches like the MCP Server and AI integrations. Strategic observations suggest continued investment in AI and decision intelligence to maintain market leadership.

Security posture

PubNub exhibits a mature security posture with adherence to multiple compliance frameworks and best practices. The website enforces HTTPS, employs comprehensive security headers, and integrates cookie consent mechanisms aligned with GDPR and CCPA. The bug bounty policy indicates proactive vulnerability management. However, explicit incident response contact details and a security.txt file are absent, representing minor gaps in transparency. No exposed sensitive data or vulnerable libraries were identified. The overall security maturity supports the company's enterprise clientele and regulatory requirements.

Recommendations

  1. Publish explicit incident response contact information on the website to improve transparency and readiness.
  2. Implement and publish a security.txt file to facilitate responsible vulnerability disclosure.
  3. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
  4. Enhance data retention policy disclosures to align with privacy compliance best practices.
  5. Continue investing in AI-driven security and compliance tools to maintain competitive advantage.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
PubNub Inc.
Description
Power your real-time app with PubNub—the world's largest pub/sub network. Scale to 3 trillion API calls/month, with <30ms global delivery. Start building now!
Key services
Real-time messaging and events, Global network infrastructure, Decision intelligence, In-app messaging, Presence, Chat SDKs and tools, Live analytics and decisioning, Mobile push notifications
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, CSS, Google Fonts, Material Icons, OneTrust Cookie Consent, Builder.io CMS
Frameworks
Next.js
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • Bug bounty program
  • Compliance with major security standards

Analytics and tracking

Services
Amplitude, Segment, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
builder.io pixel
Marketing tools
Google Fonts, OneTrust Cookie Consent, Amplitude, Segment
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 detected.
  2. WHOIS data is unavailable or privacy protected, common for enterprise domains.
  3. Strong compliance and security posture with multiple certifications.
  4. Comprehensive privacy and cookie policies with consent mechanisms.
  5. Multiple social media and contact channels available.
  6. Modern technology stack and CMS used.
  7. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on a modern technology stack featuring Next.js and React, ensuring fast and responsive user experiences. The use of Builder.io CMS allows flexible content management. Integration of OneTrust for cookie consent and analytics tools like Amplitude and Segment demonstrates a mature approach to user tracking and privacy compliance. Performance is optimized with asynchronous script loading and responsive design. No significant technical debt or outdated technologies were detected. Opportunities exist to improve hosting provider transparency and further enhance accessibility features.
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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