PartsWarehouse Champion
PartsWarehouse Champion is a BigCommerce theme by Lonestar Templates ($225). Tested on 2026-11-10 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 69 for mobile speed and 96 for desktop speed, 54/54 for SEO and 75/73 for accessibility (mobile/desktop, 0–100).
Mobile85

Desktop94

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 69 | 96 |
| SEO | 54 | 54 |
| Accessibility | 75 | 73 |
| Best practices | 78 | 80 |
Single preset · measured 30 times since 2026-11-07 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — PartsWarehouse-Champion home page
Mobile
Speed 85 · 15 points to gain
- −12.5 Largest Contentful Paint medium effort
- −1.4 Speed Index medium effort
- −0.8 First Contentful Paint medium effort
- 450 ms Reduce unused CSS high effort
SEO 54 · 46 points to gain
- −31 Page is blocked from indexing low effort
- −7.7 Links are not crawlable medium effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 79 · 21 points to gain
- −4.2 Image elements do not have `[alt]` attributes low effort
- −4.2 `[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5. low effort
- −4.2 Select elements do not have associated label elements. medium effort
- −2.9 Links do not have a discernible name medium effort
- −2.9 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
- −1.3 Heading elements are not in a sequentially-descending order medium effort
Best practices 77 · 23 points to gain
- −19.2 Uses deprecated APIs medium effort
- −3.8 Serves images with low resolution low effort
Desktop
Speed 94 · 6 points to gain
- −2.2 Largest Contentful Paint medium effort
- −2.2 Cumulative Layout Shift medium effort
- −1.3 Speed Index medium effort
SEO 54 · 46 points to gain
- −31 Page is blocked from indexing low effort
- −7.7 Links are not crawlable medium effort
- −7.7 Image elements do not have `[alt]` attributes low effort
Accessibility 80 · 20 points to gain
- −4.2 Image elements do not have `[alt]` attributes low effort
- −4.2 `[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5. low effort
- −4.2 Select elements do not have associated label elements. medium effort
- −2.9 Links do not have a discernible name medium effort
- −2.9 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
- −1.3 Heading elements are not in a sequentially-descending order medium effort
Best practices 81 · 19 points to gain
- −19.2 Uses deprecated APIs medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| PartsWarehouse-Champion default demo ↗ | 69 | 54 | 75 | 96 | 54 | 73 | 2026-11-07 |
| category ↗ | 64 | 54 | 75 | 97 | 54 | 72 | 2026-11-10 |
| home ↗ | 85 | 54 | 79 | 94 | 54 | 80 | 2026-11-07 |
| product ↗ | 57 | 54 | 71 | 96 | 54 | 68 | 2026-11-07 |