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

Bigsale

Listed as "Bigsale – Responsive Ecommerce Shopify Template"

Bigsale is a Shopify theme by typostores ($29). Tested on 2026-10-15 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 69 for mobile speed and 86 for desktop speed, 87/87 for SEO and 78/83 for accessibility (mobile/desktop, 0–100). On its marketplace it is rated 4.6 out of 5 from 14 reviews.

Mobile53
Bigsale home page on mobile
Desktop61
Bigsale home page on desktop

Scores

MobileDesktop
Speed6986
SEO8787
Accessibility7883
Best practices6364

Single preset · measured 12 times since 2026-10-12 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.

Why not 100 — Bigsale – Responsive Ecommerce Shopify Template home page

Mobile

Speed 53 · 47 points to gain

  • −23.5 Cumulative Layout Shift medium effort
  • −18.8 Largest Contentful Paint medium effort
  • −3.7 First Contentful Paint medium effort
  • −0.9 Speed Index medium effort
  • −0.6 Total Blocking Time medium effort
  • 450 ms Reduce unused CSS high effort

SEO 85 · 15 points to gain

  • −7.7 Document does not have a meta description low effort
  • −7.7 Links are not crawlable medium effort

Accessibility 80 · 20 points to gain

  • −5.7 Buttons do not have an accessible name medium effort
  • −4 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −4 `<html>` element does not have a `[lang]` attribute low effort
  • −4 Links do not have a discernible name medium effort
  • −1.7 Heading elements are not in a sequentially-descending order medium effort

Best practices 62 · 38 points to gain

  • −19.2 Uses deprecated APIs medium effort
  • −11.5 Prevents users from pasting into input fields low effort
  • −3.8 Serves images with low resolution low effort
  • −3.8 Browser errors were logged to the console medium effort

Desktop

Speed 61 · 39 points to gain

  • −19.5 Cumulative Layout Shift medium effort
  • −14.5 Largest Contentful Paint medium effort
  • −4.8 Speed Index medium effort

SEO 85 · 15 points to gain

  • −7.7 Document does not have a meta description low effort
  • −7.7 Links are not crawlable medium effort

Accessibility 88 · 12 points to gain

  • −3.4 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −3.4 `<html>` element does not have a `[lang]` attribute low effort
  • −3.4 Links do not have a discernible name medium effort
  • −1.5 Heading elements are not in a sequentially-descending order medium effort

Best practices 65 · 35 points to gain

  • −19.2 Uses deprecated APIs medium effort
  • −11.5 Prevents users from pasting into input fields low effort
  • −3.8 Browser errors were logged to the console medium effort

Presets and pages

Preset / pageSpeedSEOA11ySpeedSEOA11yTested
mobiledesktop
Bigsale – Responsive Ecommerce Shopify Template default demo ↗ 698778868783 2026-10-12
category ↗ 698580978581 2026-10-12
home ↗ 538580618588 2026-10-15
product ↗ 859275999281 2026-10-12

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Bigsale: mobile speed 69 on Themestested
<a href="https://themestested.com/theme/shopify/tf-bigsale-responsive-ecommerce-shopify-template-19327016"><img src="https://themestested.com/badge/shopify/tf-bigsale-responsive-ecommerce-shopify-template-19327016.svg" alt="Bigsale speed score on Themestested" height="20"></a>

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