WebBlocks
WebBlocks is a Webflow theme by Templates ($99). Tested on 2026-10-05 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 63 for mobile speed and 94 for desktop speed, 100/100 for SEO and 90/87 for accessibility (mobile/desktop, 0–100).
Mobile63

Desktop94

Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 63 | 94 |
| SEO | 100 | 100 |
| Accessibility | 90 | 87 |
| Best practices | 100 | 100 |
Single preset · measured 2 times since 2026-10-05 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — WebBlocks home page
Mobile
Speed 63 · 37 points to gain
- −21.8 Largest Contentful Paint medium effort
- −7 First Contentful Paint medium effort
- −4.7 Speed Index medium effort
- −3.8 Cumulative Layout Shift medium effort
- 300 ms Reduce unused CSS high effort
Accessibility 90 · 10 points to gain
- −3.3 Links rely on color to be distinguishable. medium effort
- −3.3 Links do not have a discernible name medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
- −1.4 Document does not have a main landmark. medium effort
Desktop
Speed 94 · 6 points to gain
- −4.1 Speed Index medium effort
- −1.3 Largest Contentful Paint medium effort
- −0.6 First Contentful Paint medium effort
Accessibility 87 · 13 points to gain
- −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
- −3.3 Links rely on color to be distinguishable. medium effort
- −3.3 Links do not have a discernible name medium effort
- −1.4 Heading elements are not in a sequentially-descending order medium effort
- −1.4 Document does not have a main landmark. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| WebBlocks default demo ↗ | 63 | 100 | 90 | 94 | 100 | 87 | 2026-10-05 |
| home ↗ | 63 | 100 | 90 | 94 | 100 | 87 | 2026-10-05 |