A/B Testing & Personalization

Websites using Dynamic Yield

538 of the 1,000,000 top sites in our Tranco top-1M census run Dynamic Yield (0.1%). An ecommerce personalization and A/B-testing platform (Mastercard's). Detection is homepage-level HTML/header fingerprinting, so a site can run Dynamic Yield on other pages without it showing here.

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Other a/b testing & personalization

VWO5,765 sites Optimizely1,843 sites Google Optimize1,498 sites Convert1,334 sites Salesforce Einstein Recommendations1,303 sites

The list

538 sites using Dynamic Yield

Site	Tranco rank	Also detected	Contacts

From the Crawlora Website Tech Stack Dataset, a homepage-level fingerprint of a 1,000,000-domain Tranco top-1M census (run top1m-2026-08-25-full-v2), snapshot August 29, 2026. Directional, not exhaustive — fully custom or bundled stacks under-detect. Methodology →