Forge
Forge is a Shopify theme by We are Underground ($100). Tested on 2026-11-07 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 83 for mobile speed and 99 for desktop speed, 95/95 for SEO and 91/92 for accessibility (mobile/desktop, 0–100). Those are medians across its 3 tested presets; mobile speed across every tested page ranges from 71 to 93. On its marketplace it is rated 5.0 out of 5 from 15 reviews.
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 83 | 99 |
| SEO | 95 | 95 |
| Accessibility | 91 | 92 |
| Best practices | 100 | 100 |
Median of 3 presets · measured 90 times since 2026-10-09 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Iridium home page
Mobile
Speed 77 · 23 points to gain
- −22.5 Largest Contentful Paint medium effort
- 150 ms Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 96 · 4 points to gain
- −3.6 Touch targets do not have sufficient size or spacing. medium effort
Desktop
SEO 92 · 8 points to gain
- −7.7 Document does not have a meta description low effort
Accessibility 95 · 5 points to gain
- −4.6 Elements with an ARIA `[role]` that require children to contain a specific `[role]` are missing some or all of those required children. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Iridium default demo ↗ | 83 | 95 | 92 | 99 | 95 | 92 | 2026-11-07 |
| category ↗ | 90 | 100 | 91 | 99 | 100 | 90 | 2026-11-07 |
| home ↗ | 77 | 92 | 96 | 100 | 92 | 95 | 2026-11-07 |
| product ↗ | 82 | 92 | 90 | 99 | 92 | 90 | 2026-11-07 |
| Titanium demo ↗ | 87 | 92 | 89 | 98 | 92 | 87 | 2026-11-07 |
| category ↗ | 81 | 100 | 91 | 98 | 100 | 90 | 2026-11-07 |
| home ↗ | 88 | 85 | 86 | 97 | 85 | 82 | 2026-11-07 |
| product ↗ | 93 | 92 | 90 | 99 | 92 | 90 | 2026-11-07 |
| Forge demo ↗ | 81 | 95 | 91 | 99 | 95 | 92 | 2026-11-07 |
| category ↗ | 88 | 100 | 91 | 99 | 100 | 90 | 2026-11-07 |
| home ↗ | 71 | 92 | 93 | 98 | 92 | 95 | 2026-11-07 |
| product ↗ | 83 | 92 | 90 | 99 | 92 | 90 | 2026-11-07 |
Show this score on your site
A live badge: it always shows Forge's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/shopify/forge"><img src="https://themestested.com/badge/shopify/forge.svg" alt="Forge speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.