themestestedbyWhirlwind eCommerce logo — Shopify and BigCommerce ecommerce development agencyWhirlwind eCommerce
Startup theme preview

Startup

Startup is a Shopify theme by Pixel Union ($100). Tested on 2026-11-10 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 55 for mobile speed and 67 for desktop speed, 94/94 for SEO and 91/92 for accessibility (mobile/desktop, 0–100). Those are medians across its 4 tested presets; mobile speed across every tested page ranges from 40 to 71. On its marketplace it is rated 4.4 out of 5 from 103 reviews.

Mobile57
Startup home page on mobile
Desktop85
Startup home page on desktop

Scores

MobileDesktop
Speed5567
SEO9494
Accessibility9192
Best practices9493

Median of 4 presets · measured 120 times since 2026-11-06 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.

Why not 100 — Travel home page

Mobile

Speed 57 · 43 points to gain

  • −24.8 Largest Contentful Paint medium effort
  • −12.9 Total Blocking Time medium effort
  • −4.2 Speed Index medium effort
  • −1 First Contentful Paint medium effort
  • 1.4 s Reduce unused JavaScript high effort
  • 150 ms Reduce unused CSS high effort

SEO 92 · 8 points to gain

  • −7.7 Links do not have descriptive text low effort

Accessibility 91 · 9 points to gain

  • −3.7 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −3.7 Links do not have a discernible name medium effort
  • −1.6 Heading elements are not in a sequentially-descending order medium effort

Desktop

Speed 85 · 15 points to gain

  • −11.5 Cumulative Layout Shift medium effort
  • −2.2 Largest Contentful Paint medium effort
  • −0.9 Total Blocking Time medium effort
  • 120 ms Reduce unused JavaScript high effort

SEO 92 · 8 points to gain

  • −7.7 Links do not have descriptive text low effort

Accessibility 91 · 9 points to gain

  • −3.7 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −3.7 Links do not have a discernible name medium effort
  • −1.6 Heading elements are not in a sequentially-descending order medium effort

Best practices 96 · 4 points to gain

  • −3.8 Browser errors were logged to the console medium effort

Presets and pages

Preset / pageSpeedSEOA11ySpeedSEOA11yTested
mobiledesktop
Comfort demo ↗ 469593679593 2026-11-06
category ↗ 459296729296 2026-11-07
home ↗ 49100935510093 2026-11-06
product ↗ 449290759290 2026-11-07
Duvet demo ↗ 569290509291 2026-11-06
category ↗ 579296569296 2026-11-07
home ↗ 409284579288 2026-11-06
product ↗ 719290369290 2026-11-07
Travel default demo ↗ 609292709292 2026-11-07
category ↗ 549296679296 2026-11-08
home ↗ 579291859291 2026-11-10
product ↗ 689290599290 2026-11-07
Startup demo ↗ 539589679591 2026-11-07
category ↗ 459296619296 2026-11-07
home ↗ 58100828810086 2026-11-10
product ↗ 569290539290 2026-11-07

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Startup: mobile speed 55 on Themestested
<a href="https://themestested.com/theme/shopify/startup"><img src="https://themestested.com/badge/shopify/startup.svg" alt="Startup speed score on Themestested" height="20"></a>

Add ?device=d for the desktop score, or ?metric=seo / ?metric=a11y for SEO or accessibility.