themestestedbyWhirlwind eCommerceWhirlwind eCommerce
SUMNIMA OUTFIT theme preview

SUMNIMA OUTFIT

SUMNIMA OUTFIT is a BigCommerce theme by BigMadness ($320). Tested on 2026-09-12 with Google Lighthouse via PageSpeed Insights on its own demo store, it scores 54 for mobile speed and 57 for desktop speed, 90/90 for SEO and 91/86 for accessibility (mobile/desktop, 0–100).

Mobile50
SUMNIMA OUTFIT home page on mobile
Desktop43
SUMNIMA OUTFIT home page on desktop

Scores

MobileDesktop
Speed5457
SEO9090
Accessibility9186
Best practices7373

Single preset · measured 6 times since 2026-09-11 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.

Why not 100 — SUMNIMA-OUTFIT home page

Mobile

Speed 50 · 50 points to gain

  • −25 Largest Contentful Paint medium effort
  • −10.5 Total Blocking Time medium effort
  • −9 Speed Index medium effort
  • −5.7 First Contentful Paint medium effort
  • 2.1 s Reduce unused JavaScript high effort
  • 1.1 s Reduce unused CSS high effort
  • 150 ms Minify CSS low effort

Accessibility 90 · 10 points to gain

  • −3.3 Elements use prohibited ARIA attributes medium effort
  • −3.3 Background and foreground colors do not have a sufficient contrast ratio. medium effort
  • −3.3 Touch targets do not have sufficient size or spacing. medium effort

Best practices 50 · 50 points to gain

  • −19.2 Uses deprecated APIs medium effort
  • −19.2 Uses third-party cookies high effort
  • −3.8 Displays images with incorrect aspect ratio low effort
  • −3.8 Browser errors were logged to the console medium effort
  • −3.8 Issues were logged in the `Issues` panel in Chrome Devtools high effort

Desktop

Speed 43 · 57 points to gain

  • −18.3 Cumulative Layout Shift medium effort
  • −17.1 Total Blocking Time medium effort
  • −13.3 Largest Contentful Paint medium effort
  • −8.2 Speed Index medium effort
  • 250 ms Reduce unused JavaScript high effort

Accessibility 87 · 13 points to gain

  • −3.2 Elements use prohibited ARIA attributes medium effort
  • −3.2 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
  • −3.2 List items (`<li>`) are not contained within `<ul>`, `<ol>` or `<menu>` parent elements. low effort
  • −3.2 Touch targets do not have sufficient size or spacing. medium effort

Best practices 50 · 50 points to gain

  • −19.2 Uses deprecated APIs medium effort
  • −19.2 Uses third-party cookies high effort
  • −3.8 Displays images with incorrect aspect ratio low effort
  • −3.8 Browser errors were logged to the console medium effort
  • −3.8 Issues were logged in the `Issues` panel in Chrome Devtools high effort

Presets and pages

Preset / pageSpeedSEOA11ySpeedSEOA11yTested
mobiledesktop
SUMNIMA-OUTFIT default demo ↗ 549091579086 2026-09-11
category 768587778581 2026-09-12
home 50100904310087 2026-09-11
product 378596528589 2026-09-12

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

SUMNIMA OUTFIT: mobile speed 54 on Themestested
<a href="https://themestested.com/theme/bigcommerce/sumnima-outfit"><img src="https://themestested.com/badge/bigcommerce/sumnima-outfit.svg" alt="SUMNIMA OUTFIT speed score on Themestested" height="20"></a>

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