Tinker
Tinker is a Shopify theme by Shopify (Free). Tested on 2026-11-08 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 81 for mobile speed and 98 for desktop speed, 95/95 for SEO and 88/90 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 3.0 out of 5 from 85 reviews. Note: its demo home page is heavy — 8.7 MB — heavier than a typical store, so the speed score may understate the theme.
Mobile74

Desktop98

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 81 | 98 |
| SEO | 95 | 95 |
| Accessibility | 88 | 90 |
| Best practices | 96 | 96 |
Single preset · measured 30 times since 2026-11-06 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — tinker home page
Mobile
Speed 74 · 26 points to gain
- −20 Largest Contentful Paint medium effort
- −4 Speed Index medium effort
- −2.1 First Contentful Paint medium effort
- 300 ms Reduce unused CSS high effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 88 · 12 points to gain
- −5.1 Image elements do not have `[alt]` attributes low effort
- −3.6 `[aria-hidden="true"]` elements contain focusable descendents medium effort
- −3.6 Links do not have a discernible name medium effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Desktop
Speed 98 · 2 points to gain
- −1.5 Largest Contentful Paint medium effort
SEO 85 · 15 points to gain
- −7.7 Document does not have a meta description low effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 88 · 12 points to gain
- −5 Image elements do not have `[alt]` attributes low effort
- −3.5 Links do not have a discernible name medium effort
- −3.5 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
Best practices 96 · 4 points to gain
- −3.8 Browser errors were logged to the console medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| tinker default demo ↗ | 81 | 95 | 88 | 98 | 95 | 90 | 2026-11-06 |
| category ↗ | 90 | 100 | 93 | 99 | 100 | 90 | 2026-11-08 |
| home ↗ | 74 | 85 | 88 | 98 | 85 | 88 | 2026-11-06 |
| product ↗ | 79 | 100 | 82 | 98 | 100 | 92 | 2026-11-08 |