Twilio · Twilio Privacy Notice

Visual Website Optimizer (VWO) A/B Testing and Behavioral Tracking

Medium severity
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What it is

Twilio uses Visual Website Optimizer (VWO) to run A/B tests and track visitor behavior, which can temporarily hide page content while experiments load and sets cookies tied to your browsing session.

Why it matters

VWO can modify what content you see on the website based on behavioral profiling and testing, and it sets persistent cookies to track which experiment variations you have been exposed to.

Institutional analysis (Compliance & legal intelligence)

The VWO integration fires a script that hides page body content while settings are loaded, which has potential implications for consent-first cookie deployment under GDPR. Compliance teams should verify that VWO is gated behind the TrustArc consent wrapper and does not set cookies or fire tracking pixels prior to consent being obtained.

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Consumer impact

When you visit Twilio's website, multiple third-party tracking technologies collect data about your browsing behavior for analytics and advertising purposes. This includes tools from Google, Adobe, Segment, and Visual Website Optimizer, which may share your data with those companies. You can manage your cookie and tracking preferences by interacting with the TrustArc consent banner displayed on the Twilio website.

Applicable agencies

  • FTC
    Behavioral tracking and profiling for website optimization must comply with FTC transparency and consent standards.
    File a complaint →

Provision details

Document information
Document
Twilio Privacy Notice
Entity
Twilio
Document last updated
March 24, 2026
Tracking information
First tracked
March 20, 2026
Last verified
March 20, 2026
Record ID
CA-P-00252004
Document ID
CA-D-00252
Evidence Provenance
Source URL
Wayback Machine
SHA-256
400629bc259a02e672988f07b6a5410d47b8cae2098b684035e2cfe83a29a9cd
Verified
✓ Snapshot stored   ✓ Change verified
How to Cite
ConductAtlas Policy Archive
Entity: Twilio | Document: Twilio Privacy Notice | Record: CA-P-00252004
Captured: 2026-03-20 10:34:16 UTC | SHA-256: 400629bc259a02e6…
URL: https://conductatlas.com/platform/twilio/twilio-privacy-notice/visual-website-optimizer-vwo-ab-testing-and-behavioral-tracking/
Accessed: April 4, 2026
Classification
Severity
Medium
Categories

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