testata.

Conversion engineering for Shopify stores.

We find what's silently losing your store money on mobile — measured, not guessed — then fix it, live on your store, in two weeks.

How it works

  1. 1. Free teardownThree findings on your mobile store, each with a real measurement, a conservative dollar estimate, and the fix. Two pages. No pitch inside.
  2. 2. Conversion SprintTwo weeks. We implement every finding ourselves — script hygiene, page weight, offer presentation, checkout friction — through Shopify collaborator access, no passwords. If there's no measurable lift in 60 days, the fee comes back.
  3. 3. Keep it fixedMonthly conversion engineering with honest measurement at your traffic level — one improvement a month, and nothing new slows the store down again.

What we find

Every mid-size Shopify store we measured this month fails Google's mobile speed threshold — not because of photos, but because of what gets loaded around them.

A $7M swimwear brand's new homepage, by type12,696 KB across 379 requests · mobile lab, Sept 2026Video (hero)7,190 KB · 57%Scripts2,592 KBImages1,404 KBCheckout & misc964 KBEverything else547 KB
7.2 MB of the 12.7 MB is a hero video autoplaying on phones; two analytics tags load twice. Fix: ~1–2 days.
A $5M denim brand's best-selling product page3,956 KB across 429 requests · mobile lab, Sept 2026Scripts1,913 KB · 48%Checkout & misc1,345 KBFonts172 KBHTML161 KBEverything else366 KB
1.9 MB of scripts for 136 KB of product photos. The review app is installed and shows zero reviews on a $198 best-seller. Fix: ~1 day.

Who does the work

Raúl J — principal software engineer, 16 years building software for US SaaS companies. Shopify Partner. One engineer does the teardown, the sprint, and the follow-through; nothing is handed to a junior or an agency.

Want the free teardown? Email your store URL to raul@testata.app — you'll get three measured findings within three business days.
Stores doing roughly $1M–$10M a year get the most out of this.