A/B Testing & Personalization
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.
Other a/b testing & personalization
| # | Domain | Global traffic rank | Contacts |
|---|---|---|---|
| 1 | hp.com | #270 (Tranco) | Find emails |
| 2 | yotpo.com | #2,277 (Tranco) | Find emails |
| 3 | nespresso.com | #4,938 (Tranco) | Find emails |
| 4 | obi.de |
| Site | Tranco rank | Also detected | Contacts |
|---|---|---|---|
| opel.de | #86,550 | Adobe Advertising Cloud, Adobe Audience Manager, Adobe Experience Cloud (Launch) + 5 more | Find emails |
| sweatybetty.com | #87,304 | 33Across, Adform, Adobe Audience Manager + 61 more | Find emails |
| jysk.ba | #87,426 | Akamai Edge DNS, DigiCert, Drupal + 8 more | Find emails |
| #5,993 (Tranco) |
| Find emails |
| 5 | sklum.com | #6,928 (Tranco) | Find emails |
| delta.co.il | #91,079 | Cloudflare Bot Management, Cloudflare edge/CDN, Google Analytics + 5 more | Find emails |
| annsummers.com | #96,413 | Adobe Fonts (Typekit), Akamai Edge DNS, Akamai edge/CDN + 9 more | Find emails |
| valamar.com | #98,278 | ASP.NET, Azure API Management, Azure DNS + 5 more | Find emails |
| petsbest.com | #101,300 | AOS, ASP.NET, Adobe Fonts (Typekit) + 15 more | Find emails |
| thetoyshop.com | #101,664 | Akamai Edge DNS, Google Tag Manager, Klarna + 2 more | Find emails |
| mamasandpapas.com | #101,992 | Bootstrap, CSC (Digital Brand Services), Cloudflare edge/CDN + 12 more | Find emails |
| brooklinen.com | #102,107 | Attentive, Cloudflare edge/CDN, Google Ads Conversion + 12 more | Find emails |
| fiat.it | #110,630 | Adobe Experience Cloud (Launch), Apache, Google Maps + 4 more | Find emails |
| virginexperiencedays.co.uk | #110,678 | Amazon (ACM), Amazon CloudFront, Amazon Route 53 + 6 more | Find emails |
| kenzo.com | #110,763 | Akamai Bot Manager, Akamai Edge DNS, Akamai edge/CDN + 8 more | Find emails |
| swisscasinos.ch | #113,194 | Akamai Edge DNS, Cloudflare Web Analytics, Cloudflare edge/CDN + 10 more | Find emails |
| crlaurence.com | #114,042 | Azure Front Door, Braze, ClickTale (Contentsquare) + 8 more | Find emails |
| dreamcloudsleep.com | #115,671 | Amazon Route 53, Contentful, DataDome + 6 more | Find emails |
| bancoagricola.com | #116,211 | AngularJS, Bootstrap, DigiCert + 6 more | Find emails |
| ibishotel.com | #118,875 | Adobe Experience Manager Edge Delivery (Helix RUM), Fastly, Google Tag Manager + 2 more | Find emails |
| gymboree.com | #119,832 | Adobe Audience Manager, Adobe Experience Cloud (Launch), Akamai Bot Manager + 9 more | Find emails |
| rockbottomgolf.com | #120,665 | Affirm, BigCommerce, Bloomreach + 16 more | Find emails |
| toptracer.com | #121,900 | AOS, Amazon Route 53, Google Tag Manager + 10 more | Find emails |
| vauxhall.co.uk | #122,031 | Adobe Advertising Cloud, Adobe Audience Manager, Adobe Experience Cloud (Launch) + 6 more | Find emails |
| mazda.de | #123,415 | Amazon Route 53, Dynatrace, Google Tag Manager + 1 more | Find emails |
| crowncastle.com | #123,502 | ASP.NET, Amazon CloudFront, Amazon Route 53 + 11 more | Find emails |
| gant.com | #124,546 | Amazon CloudFront, Cloudflare, Cloudflare Web Analytics + 11 more | Find emails |
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 →