VWO is a website testing and conversion optimisation platform.
Detection looks at script sources, javascript globals across 6 fingerprint rules among the site's public responses.
01
Websites using VWO
Loading website list…
02
Signal classes
PluginView evaluates public page signals in these classes when identifying VWO. Individual fingerprint rule bodies are proprietary and are not published.
- Script sources
- JavaScript globals
03
Example public indicators for VWO
Illustrative indicators derived from public catalog metadata for VWO. A live scan may match additional proprietary rules beyond these examples.
- dev.visualwebsiteoptimizer.com/
- visual-website-optimizer/
- VWO
- __vwo
- _vwo_code
- _vwo_settings_timer
04
What a detection means
- Establishes
- The listed vendor-controlled browser component was present and active on the scanned page at scan time.
- Does not establish
- It does not prove a sitewide installation, current commercial contract, backend-only use, exclusive use, or production transaction volume.
05
Minimum proof rule
Observe a live browser request, loaded script, or iframe to the listed unique vendor endpoint. Source-text-only matches do not qualify.
Best pages to check: All pages; observe experiment activation
06
How to check a site for VWO
- 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest VWO signals (prefer: All pages; observe experiment activation).
- 2. PluginView reads only public responses (script sources, javascript globals) and scores them against the VWO signature set (6 rules).
- 3. Review the confidence score and text explanation for VWO on the results page.
07
FAQ: detecting VWO
- Can PluginView detect VWO without logging in?
- Yes. PluginView only reads publicly accessible responses when checking for VWO — typically script sources, javascript globals. It does not bypass authentication or paywalls.
- What category is VWO?
- VWO is classified under Analytics, A/B Testing, Experimentation, Search & Personalization in the PluginView directory.
- How many fingerprint rules cover VWO?
- This reference currently tracks 6 fingerprint rules across script sources, javascript globals. Individual rule bodies are proprietary and are not published.
- What public signals suggest a site uses VWO?
- Illustrative public indicators for VWO include dev.visualwebsiteoptimizer.com/; visual-website-optimizer/; VWO. A live scan may match additional proprietary rules beyond these examples.
- Which pages are best for detecting VWO?
- For VWO, start with: All pages; observe experiment activation.
