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Security report for idio.co

Optimizely · Technology · United States

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

Security score

83/100

Risk levelLow

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

Optimizely is a leading enterprise technology company specializing in digital experience platforms that unify content management, digital commerce, and customer intelligence. The website highlights their product rebranding, with Idio now integrated as Optimizely Recommendations, focusing on real-time content personalization to drive revenue. The company targets businesses seeking to optimize customer touchpoints through experimentation and data-driven insights. Technically, the website leverages modern JavaScript frameworks like React, integrates with Azure Application Insights, and uses multiple marketing and analytics tools including Marketo, Google Analytics, and Microsoft Clarity. The site is well-structured, mobile-optimized, and includes comprehensive privacy and cookie policies, reflecting a mature digital presence. Security posture is strong with HTTPS enforced and use of nonce attributes in scripts, though explicit security headers and vulnerability disclosure mechanisms could be improved. WHOIS data is unavailable, likely due to privacy protection, but the overall trustworthiness and legitimacy of the domain and business are high based on content and branding.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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

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  • TLS certificates and expiry
  • DNS records
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  • 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
50
Email security
100
DNS health
85
Network security
100
GDPR outside view
88
Average
83

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 as a B2B SaaS provider offering a comprehensive digital experience platform. Their market position is strong, with a focus on experimentation, personalization, and commerce integration. The business model revolves around subscription-based software services targeting medium to large enterprises. The company maintains a global presence with headquarters in the USA and offers extensive resources and partner programs. Their marketing ecosystem includes advanced tracking and retargeting technologies, indicating a sophisticated approach to customer acquisition and engagement. The absence of public WHOIS data is typical for large enterprises prioritizing privacy. Overall, Optimizely demonstrates a robust business strategy with clear competitive advantages in digital experience management.

Security posture

The website demonstrates a solid security posture with HTTPS enforced and use of security-conscious script loading practices such as nonce attributes. Multiple security and analytics tools are integrated, providing visibility into user behavior and potential threats. However, explicit security headers like Content-Security-Policy and X-Frame-Options are not clearly visible in the HTML, which could be enhanced. No vulnerabilities or exposed sensitive data were detected in the content. The lack of a published security policy or incident response contact limits transparency in security governance. The cookie consent mechanism and privacy policy indicate compliance with GDPR and related regulations. Overall, the security maturity is good but could benefit from formalized disclosure and header policies.

Recommendations

  1. Publish and enforce explicit security headers such as Content-Security-Policy, X-Frame-Options, and Referrer-Policy to enhance protection against common web attacks.
  2. Create and maintain a publicly accessible security policy and incident response page to improve transparency and trust.
  3. Implement a security.txt file to facilitate vulnerability disclosure and improve security communication.
  4. Regularly audit third-party scripts and dependencies to mitigate risks from external libraries.
  5. Enhance documentation of data retention policies and privacy compliance to align with evolving regulations.

Contact details published on the site

Addresses
Legal name
Optimizely
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Optimizely
Description
Optimizely provides a Digital Experience Platform combining content management, digital commerce, and customer intelligence to deliver customer-centric experiences across channels. The Idio product is now branded as Optimizely Recommendations, offering real-time prescriptive guidance to optimize content conversion and revenue.
Key services
Digital Experience Platform (DXP), Content management, Digital commerce, Customer intelligence, Experimentation products, Content recommendations
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, React, Azure Application Insights, Google Tag Manager, Marketo, Microsoft Application Insights, 6sense, Qualified, CaliberMind, Zaius, Vidstack
Frameworks
React
Platforms
Azure
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of security and analytics scripts with nonce attributes
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Analytics, Microsoft Application Insights, Microsoft Clarity, Marketo Munchkin, 6sense, Qualified, Zaius
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
The Trade Desk (js.adsrvr.org), Qualified
Tracking pixels
Microsoft Clarity, Facebook Pixel, LinkedIn Insight Tag, Bing Ads, Marketo Munchkin, 6sense
Marketing tools
Marketo, CaliberMind, Zaius, Qualified
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Content is professionally presented and relevant to digital experience technology.
  3. Multiple modern tracking and marketing technologies are integrated.
  4. Privacy and cookie policies are present and comprehensive.
  5. Contact information includes physical address and phone number with clear context.
  6. No security.txt or explicit vulnerability disclosure found.
  7. WHOIS data is unavailable, limiting domain registration insights.
Technical notes

Notes

The website is built on a modern React-based frontend with integration to Episerver CMS (now Optimizely CMS). Hosting and telemetry are managed via Microsoft Azure services, including Application Insights. The site uses a broad set of marketing and analytics tools such as Google Tag Manager, Marketo, Microsoft Clarity, 6sense, and Qualified, indicating a mature marketing technology stack. Performance is moderate with preloading and modulepreload hints used for optimization. Accessibility and SEO best practices are observed with proper meta tags, hreflang attributes, and responsive design. The technical infrastructure supports a scalable and secure digital experience platform, though some improvements in security header implementation and vulnerability disclosure are recommended.
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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