Lasko
Lasko is a Webflow theme by Templates ($59). Tested on 2026-10-14 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 86 for mobile speed and 99 for desktop speed, 100/100 for SEO and 88/88 for accessibility (mobile/desktop, 0–100). Note: its demo home page is heavy — 6.2 MB — heavier than a typical store, so the speed score may understate the theme.
Mobile86
Desktop99
Scores
| Mobile | Desktop | |
|---|---|---|
| Speed | 86 | 99 |
| SEO | 100 | 100 |
| Accessibility | 88 | 88 |
| Best practices | 100 | 100 |
Single preset · measured 4 times since 2026-09-29 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.
Why not 100 — Lasko home page
Mobile
Speed 86 · 14 points to gain
- −7.3 Largest Contentful Paint medium effort
- −5.6 First Contentful Paint medium effort
- −0.8 Speed Index medium effort
Accessibility 88 · 12 points to gain
- −4.1 `<html>` element does not have a `[lang]` attribute low effort
- −4.1 Links do not have a discernible name medium effort
- −1.8 Heading elements are not in a sequentially-descending order medium effort
- −1.8 Document does not have a main landmark. medium effort
Desktop
Speed 99 · 1 points to gain
- −0.8 Largest Contentful Paint medium effort
Accessibility 88 · 12 points to gain
- −4.1 `<html>` element does not have a `[lang]` attribute low effort
- −4.1 Links do not have a discernible name medium effort
- −1.8 Heading elements are not in a sequentially-descending order medium effort
- −1.8 Document does not have a main landmark. medium effort
Presets and pages
| Preset / page | Speed | SEO | A11y | Speed | SEO | A11y | Tested |
|---|---|---|---|---|---|---|---|
| mobile | desktop | ||||||
| Lasko default demo ↗ | 86 | 100 | 88 | 99 | 100 | 88 | 2026-10-14 |
| home ↗ | 86 | 100 | 88 | 99 | 100 | 88 | 2026-10-14 |
Show this score on your site
A live badge: it always shows Lasko's current score and links back here. Paste this where the theme is sold or documented.
<a href="https://themestested.com/theme/webflow/lasko-agency-website-template"><img src="https://themestested.com/badge/webflow/lasko-agency-website-template.svg" alt="Lasko speed score on Themestested" height="20"></a>
Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.