Reference implementation · Messaging A/B test
Three hero variants are randomly assigned on the PeptidesDirect product page. We track each visitor through to /verify/{id}, QR scan, completed verification, and click-through back to checkout. Use this to compare which framing drives the verification chain hardest.
Volume scales with the active filters; rates stay constant.
Leading on verify → checkout click rate: Variant B — Outcome-led(34.1% vs. control)
Trust-first (control)
Every batch tested for purity, identity, and concentration before it ships.
Plain trust signal. Leads with the third-party name and a low-commitment CTA.
Outcome-led
Scan the QR. See the purity, mass, and concentration. Then decide.
Benefit-first headline; CTA matches the physical action on the package.
Skeptic-framing
Raw HPLC and mass-spec data, signed by CertikLabs, linked from every product.
Speaks to research buyers who reject marketing claims; surfaces methodology.
Lift vs. control (Variant A). Negative values mean the variant underperformed control.
| Metric | A | B | C | B vs. A | C vs. A |
|---|---|---|---|---|---|
| Verify-page view rate | 44.0% | 61.8% | 48.9% | +40.3% | +11.2% |
| Verification completion rate | 48.6% | 64.4% | 76.4% | +32.6% | +57.3% |
| Verify → checkout click rate | 36.9% | 49.5% | 39.2% | +34.1% | +6.0% |
| Verifications completed | 3,268 | 5,914 | 5,408 | +81.0% | +65.5% |
| Checkout click-throughs | 1,207 | 2,930 | 2,118 | +142.8% | +75.5% |
Seeded best-case data for messaging review. End-to-end variant attribution is wired up in code: the assigned id is read from ?v=A|B|C on inbound links, persisted in the cl_pd_ab first-party cookie (90 day TTL), surfaced on /verify/{id}, appended to the outbound checkout link as ?cl_ab=…&utm_campaign=pd_hero_ab, and recorded against the visitor session via /api/public/track on verify-view and checkout-click. Referrer source & device dimensions come from the existing site_sessions columns. Numbers above flip to live data once PeptidesDirect ships the variant assignment on their hero.