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Security report for optimizely.com

Optimizely · Technology · N/a

Low risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

86/100

Risk levelLow

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

Optimizely is a leading enterprise technology company specializing in AI-powered digital experience solutions. Their platform empowers marketing and digital teams to rapidly create, personalize, test, and scale content using advanced AI capabilities. The company holds a strong market position as a provider of comprehensive digital experience tools, serving a global enterprise audience. Technically, the website demonstrates a mature digital infrastructure leveraging modern JavaScript frameworks such as React, cloud hosting likely on Microsoft Azure, and extensive use of analytics and marketing automation tools including Microsoft Clarity, Google Analytics, Marketo, and CaliberMind. The site is well-optimized for performance, mobile responsiveness, and accessibility, reflecting a high level of digital maturity. Security-wise, Optimizely enforces HTTPS, employs robust security headers, and integrates CAPTCHA for form protection, indicating a solid security posture. However, no explicit incident response or vulnerability disclosure policies were found, representing an area for improvement. Overall, the website is professional, trustworthy, and compliant with privacy regulations such as GDPR, though WHOIS data is unavailable, possibly due to privacy protection. This does not detract from the company's legitimacy given the strong branding and business presence.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
100/ 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 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 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 optimizely.com

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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
75
Security headers
55
Email security
100
DNS health
85
Network security
100
GDPR outside view
100
Average
86

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

Optimizely operates in the technology sector, focusing on SaaS solutions for digital experience management. Their business model centers on subscription-based software services targeting marketing and digital teams in enterprises. The company has a broad partnership ecosystem and multiple subsidiaries, enhancing its market reach and service offerings. Revenue streams likely include platform subscriptions, professional services, and integrations. The website content and structured data indicate a consistent brand identity and a focus on AI-driven innovation. Growth indicators include the acquisition of several subsidiaries and integration of advanced analytics and marketing tools. Strategic observations suggest a focus on expanding AI capabilities and enhancing customer personalization to maintain competitive advantage.

Security posture

The website exhibits a mature security posture with enforced HTTPS, comprehensive security headers, and use of CAPTCHA to mitigate automated abuse. Analytics and marketing scripts are deployed with consent mechanisms, supporting privacy compliance. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of publicly available incident response or vulnerability disclosure information suggests potential gaps in transparency and readiness. Compliance with GDPR is indicated by privacy and cookie policies. Overall, the security maturity is high but could be improved by publishing formal security policies and certifications.

Recommendations

  1. Publish a formal vulnerability disclosure and incident response policy to enhance transparency and security readiness.
  2. Regularly audit and update third-party scripts to mitigate risks from external dependencies.
  3. Enhance visibility of data retention policies to improve privacy compliance and user trust.
  4. Consider obtaining and displaying recognized security certifications such as ISO 27001 or SOC 2.
  5. Maintain and update security headers and SSL configurations to adhere to evolving best practices.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Optimizely
Description
Empowering marketing and digital teams with everything they need to create content fast, test and personalize with ease, and prove impact on business outcomes.
Key services
Content creation acceleration, Personalization, Testing and analysis, AI-powered scaling
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, React, Azure Application Insights, Google Tag Manager, Marketo, Microsoft Application Insights SDK, Zaius analytics
Frameworks
React
Platforms
Azure
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Use of CAPTCHA (reCAPTCHA)
  • Use of analytics with consent mechanisms

Analytics and tracking

Services
Microsoft Clarity, Google Analytics, Marketo, CaliberMind, Optimizely CMP Analytics, Azure Application Insights
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Microsoft Advertising (bat.bing.com), Facebook Ads (connect.facebook.net), Quora Ads (a.quora.com), Reddit Ads (www.redditstatic.com), LinkedIn Ads (snap.licdn.com)
Tracking pixels
Microsoft Clarity, Marketo Munchkin, Optimizely CMP Analytics
Marketing tools
Marketo, CaliberMind
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 professional design.
  2. Strong use of modern JavaScript frameworks and analytics tools.
  3. Comprehensive privacy and cookie policies with consent mechanisms.
  4. No direct contact emails or phone numbers found in HTML; contact via form.
  5. No security.txt or explicit vulnerability disclosure policy found.
  6. WHOIS data unavailable, possibly due to privacy or registry restrictions.
  7. Multiple subsidiary brands listed in structured data.
  8. Use of multiple third-party marketing and tracking services.
  9. No adult or questionable content detected.
Technical notes

Notes

The website is built on a modern technology stack including React and is likely hosted on Microsoft Azure, as evidenced by the use of Azure Application Insights. It integrates multiple analytics and marketing tools such as Google Tag Manager, Marketo, Microsoft Clarity, and CaliberMind, indicating a sophisticated data-driven approach. The CMS appears to be EPiServer (now Optimizely CMS), supporting enterprise content management needs. Performance is optimized with module preloading and asynchronous script loading. The site is mobile-optimized and accessible, with good SEO practices implemented via meta tags and structured data. Technical risks include reliance on multiple third-party scripts which require ongoing security management.
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. 86/100 +2Low17 findingsView report
  2. 84/100Low19 findingsView report
  3. 49/100High16 findings · partial scanView report
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