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

Quincy

Quincy is a Squarespace theme by Squarespace (Free). Tested on 2026-11-09 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 83 for mobile speed and 99 for desktop speed, 92/92 for SEO and 91/93 for accessibility (mobile/desktop, 0–100).

Mobile83
Quincy home page on mobile
Desktop99
Quincy home page on desktop

Scores

MobileDesktop
Speed8399
SEO9292
Accessibility9193
Best practices9696

Single preset · measured 14 times since 2026-11-02 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.

Why not 100 — Quincy home page

Mobile

Speed 83 · 17 points to gain

  • −11.2 Largest Contentful Paint medium effort
  • −3.6 First Contentful Paint medium effort
  • −1.8 Speed Index medium effort
  • 600 ms Reduce unused CSS high effort
  • 160 ms Reduce unused JavaScript high effort

SEO 92 · 8 points to gain

  • −7.7 Document does not have a meta description low effort

Accessibility 91 · 9 points to gain

  • −6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −2.6 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

Desktop

Speed 99 · 1 points to gain

  • −0.5 Largest Contentful Paint medium effort
  • −0.5 Speed Index medium effort

SEO 92 · 8 points to gain

  • −7.7 Document does not have a meta description low effort

Accessibility 93 · 7 points to gain

  • −4.6 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −2 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
Quincy default demo ↗ 839291999293 2026-11-09
home ↗ 839291999293 2026-11-09

Show this score on your site

A live badge: it always shows Quincy's current score and links back here. Paste this where the theme is sold or documented.

Quincy: mobile speed 83 on Themestested
<a href="https://themestested.com/theme/squarespace/quincy-fluid-demo"><img src="https://themestested.com/badge/squarespace/quincy-fluid-demo.svg" alt="Quincy speed score on Themestested" height="20"></a>

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