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Security report for vwo.com

VWO · Technology · N/a

Low risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

76/100

Risk levelLow

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

VWO is a well-established enterprise SaaS company specializing in digital experience optimization, including experimentation and conversion rate optimization. The company positions itself as a market leader serving fast-growing companies and digital marketing teams. The website reflects a mature digital presence with professional design, strong branding, and extensive use of marketing and analytics technologies such as Google Analytics, Matomo, Marketo, and Bing Ads. Hosting and DNS are managed via Cloudflare, ensuring good performance and security. Security posture is generally strong with HTTPS enabled and domain transfer protections in place, though DNSSEC is not enabled and no explicit security or incident response policies are published. Privacy compliance is limited by the absence of visible privacy and cookie policies in the provided content. Overall, the website is trustworthy, professional, and technically sound, with room for improvement in privacy transparency and security documentation.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
65/ 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"

  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
    • 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 vwo.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.

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.

Billed monthly to your card. Cancel anytime. The full timeline opens with your unlock code.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
57
Security headers
70
Email security
82
DNS health
80
Network security
100
GDPR outside view
65
Average
76

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

The company operates in the technology sector with a SaaS business model focused on digital experience optimization. Its market position is strong, supported by a long domain history and consistent branding. The target audience includes digital marketers, product teams, and fast-growing companies seeking to optimize their online presence and conversion rates. The business leverages multiple marketing and analytics tools to drive growth and customer insights. No parent or subsidiary companies are identified. The company maintains active social media channels on Facebook, Twitter, YouTube, and LinkedIn, enhancing its market reach and trust. The absence of direct email contacts suggests a preference for contact forms and phone communication.

Security posture

The website employs HTTPS with a valid SSL configuration and uses Cloudflare DNS, which enhances security and performance. Domain registration includes clientTransferProhibited and clientUpdateProhibited statuses, preventing unauthorized domain changes. However, DNSSEC is not enabled, which is a recommended security enhancement. No security headers were detected in the provided content, and there is no published security policy or incident response information, which could be improved to increase transparency and readiness. The site uses multiple tracking and marketing scripts, indicating extensive user data collection, but lacks visible privacy and cookie policies, which is a compliance gap. Overall, the security posture is good but could benefit from enhanced documentation and technical controls.

Recommendations

  1. Enable DNSSEC on the domain to improve DNS security and prevent spoofing.
  2. Publish a comprehensive privacy policy and cookie policy with clear GDPR compliance statements.
  3. Implement and publish a security policy and incident response plan to enhance trust and preparedness.
  4. Add security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  5. Review and optimize tracking scripts to balance marketing needs with user privacy and compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
VWO
Description
VWO is the market-leading digital experience optimization solution that fast-growing companies use for experimentation & conversion rate optimization.
Key services
experimentation, conversion rate optimization, digital experience optimization
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Analytics, Google Tag Manager, Matomo, Marketo, Cloudflare DNS
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
85/100
Good practices seen
  • HTTPS enabled
  • Domain status clientTransferProhibited and clientUpdateProhibited

Analytics and tracking

Services
Google Analytics, Matomo
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
Bing Ads
Tracking pixels
Marketo Munchkin, Matomo, Bing Ads
Marketing tools
Marketo, Matomo
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 no blocking or WAF challenge.
  2. Professional and modern website design with strong branding.
  3. Extensive use of marketing and analytics tools indicating mature digital marketing.
  4. No explicit privacy or cookie policy pages detected in the provided content.
  5. Contact information includes phone number and contact form but no direct email found.
  6. No explicit security policy or incident response information published.
  7. WHOIS data supports legitimacy and long-term operation.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on WordPress CMS and uses a modern tech stack including JavaScript libraries and marketing tools like Marketo, Matomo, Google Analytics, and Google Tag Manager. Hosting and DNS are managed via Cloudflare, contributing to fast loading times and good performance. The site is mobile-optimized with responsive design and accessibility considerations. SEO is well implemented with meta tags, Open Graph data, and structured JSON-LD data for organization and website schema. There is no indication of technical debt or outdated technologies. The main technical risk is the lack of DNSSEC and missing security headers, which are relatively easy to remediate. Overall, the technical infrastructure is robust and supports the 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. 75/100 −3Medium24 findingsView report
  2. 78/100 +4Low23 findingsView report
  3. 74/100Medium25 findingsView report
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