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Security report for mux.com

Mux · Technology · N/a

Medium risk. 5 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

Mux is a technology company specializing in providing video streaming infrastructure through APIs, players, and analytics. Their platform is designed for developers and software teams to build live and on-demand video features efficiently. The company positions itself as a cost-effective and scalable solution trusted by top global brands. The website reflects a mature digital presence with professional design, clear product offerings, and strong branding. Technically, the site uses modern frameworks such as Next.js and React, ensuring fast performance and good mobile optimization. Security posture is strong with HTTPS and security headers implemented, though explicit security policies and incident response details are not publicly available. Privacy compliance is addressed with visible privacy and cookie policies, including consent mechanisms. However, the absence of WHOIS data for the domain introduces some uncertainty regarding domain registration legitimacy. Overall, Mux presents as a credible and professional business with a solid technical foundation and good security practices.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
58/ 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

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 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 Policy found

      GDPR requires clear information about cookie usage

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

    • 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 mux.com

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

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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
72
Security headers
30
Email security
80
DNS health
85
Network security
100
GDPR outside view
58
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

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 mux.com, from OffSeq Breach.

Total records
1,598
Employees
0
Customers
1,598
Third parties
0
Weak passwords
12%

8 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 mux.com.

Select it in the checkout above.

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

Technical appendix

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

Business context

Business profile

Mux operates in the technology sector, focusing on video streaming APIs and related services. Their business model is B2B SaaS, targeting developers and enterprises needing video infrastructure. The company has a strong market position, evidenced by partnerships with well-known brands and a comprehensive product suite including Mux Video, Mux Player, and Mux Data. Revenue streams likely include subscription and usage-based pricing for API access and analytics. The website showcases a broad partnership ecosystem and emphasizes ease of integration and scalability. Growth indicators include a modern web presence and active marketing through social media and content. Strategic observations suggest Mux is focused on developer experience and data-driven video performance monitoring.

Security posture

Mux demonstrates a mature security posture with enforced HTTPS, comprehensive security headers, and secure form implementations. No vulnerabilities or exposed sensitive data were detected in the website content. Privacy policies and cookie consent mechanisms indicate compliance with GDPR and related regulations. However, the lack of a published security policy, incident response plan, or vulnerability disclosure program limits transparency. The absence of a security.txt file or dedicated security contact reduces readiness for coordinated vulnerability disclosure. Overall, the security maturity is good but could be improved by publishing explicit security governance documents and incident response contacts.

Recommendations

  1. Publish a dedicated security policy and incident response information on the website.
  2. Implement and publish a vulnerability disclosure program or security.txt file.
  3. Provide contact details for a Data Protection Officer or privacy contact to enhance GDPR transparency.
  4. Enhance business credibility by ensuring WHOIS domain registration data is complete and publicly accessible.
  5. Continue to monitor and update security headers and privacy compliance to maintain high standards.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Mux
Description
The most cost-effective video infrastructure for businesses of all scale. From startups to the World Cup, modern software teams use Mux products to stream billions of minutes of video every day.
Key services
Mux Video, Mux Player, Mux Data
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, CSS, HTML5, Mux Video API, Mux Player
Frameworks
Next.js
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Security headers present
  • No exposed sensitive data detected
  • Secure forms with proper labeling

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
good

Site quality

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

Key observations

  1. Professional and modern website design
  2. Clear focus on video streaming APIs and services
  3. Strong branding with top-tier client logos
  4. No visible security or privacy policy gaps on the website
  5. No WHOIS data available, which is unusual
  6. No direct company contact emails or phone numbers found in the HTML
  7. Use of Google Tag Manager for analytics
  8. No signs of adult or questionable content
  9. No WAF or blocking detected
Technical notes

Notes

The website is built using modern web technologies including React and Next.js, providing fast loading times and excellent mobile responsiveness. The use of Mux's own video streaming APIs and players is integrated seamlessly. SEO and accessibility features are well implemented, with proper meta tags and ARIA attributes. The site uses Google Tag Manager for analytics and tracking, indicating a moderate level of user data collection. Hosting details are not explicitly identified but the presence of Vercel-related assets suggests possible use of Vercel as a hosting provider. Overall, the technical infrastructure is robust, modern, and well-optimized for performance and user experience.
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. 68/100 −5Medium31 findingsView report
  2. 73/100Medium26 findingsView report
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