Hera Warm
Hera Warm is a BigCommerce theme by Halothemes ($300). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 52 for mobile speed and 82 for desktop speed, 89/89 for SEO and 95/95 for accessibility (mobile/desktop, 0–100).
Mobile48

Desktop69

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 52 | 82 |
| SEO | 89 | 89 |
| Accessibility | 95 | 95 |
| Best practices | 96 | 98 |
Single preset · measured 4 times since 2026-09-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Hera-Warm home page
Mobile
Speed 48 · 52 points to gain
- −24.3 Largest Contentful Paint medium effort
- −12.5 Cumulative Layout Shift medium effort
- −6.6 Total Blocking Time medium effort
- −5.3 First Contentful Paint medium effort
- −3.1 Speed Index medium effort
- 770 ms Reduce unused JavaScript high effort
- 620 ms Reduce unused CSS high effort
SEO 92 · 8 points to gain
- −7.7 Links are not crawlable medium effort
Accessibility 97 · 3 points to gain
- −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
Best practices 96 · 4 points to gain
- −3.8 Serves images with low resolution low effort
Desktop
Speed 69 · 31 points to gain
- −19.8 Total Blocking Time medium effort
- −7.3 Largest Contentful Paint medium effort
- −3.5 Speed Index medium effort
- 120 ms Reduce unused CSS high effort
- 120 ms Reduce unused JavaScript high effort
SEO 92 · 8 points to gain
- −7.7 Links are not crawlable medium effort
Accessibility 97 · 3 points to gain
- −3.2 `[aria-hidden="true"]` elements contain focusable descendents medium effort
Best practices 96 · 4 points to gain
- −3.8 Displays images with incorrect aspect ratio low effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Hera-Warm default demo ↗ | 52 | 89 | 95 | 82 | 89 | 95 | 2026-09-12 |
| category ↗ | 56 | 85 | 93 | 95 | 85 | 92 | 2026-09-12 |
| home ↗ | 48 | 92 | 97 | 69 | 92 | 97 | 2026-09-12 |