Bosa Online Education

Single preset · measured 2 times since 2026-09-13 · Lighthouse via PageSpeed Insights · 0–100, 90+ is good.

Mobile

Speed 75 · 25 points to gain

• −15.3 Largest Contentful Paint medium effort
• −6.8 First Contentful Paint medium effort
• −3.4 Speed Index medium effort

• 450 ms Reduce unused CSS high effort

SEO 40 · 60 points to gain

• −40.3 Page is blocked from indexing low effort
• −10 Document does not have a meta description low effort
• −10 Links are not crawlable medium effort

Accessibility 90 · 10 points to gain

• −3.5 Background and foreground colors do not have a sufficient contrast ratio. medium effort
• −3.5 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
• −1.5 Heading elements are not in a sequentially-descending order medium effort
• −1.5 Document does not have a main landmark. medium effort

Desktop

Speed 77 · 23 points to gain

• −19.3 Cumulative Layout Shift medium effort
• −1.9 Speed Index medium effort
• −1 Largest Contentful Paint medium effort

SEO 40 · 60 points to gain

• −40.3 Page is blocked from indexing low effort
• −10 Document does not have a meta description low effort
• −10 Links are not crawlable medium effort

Accessibility 82 · 18 points to gain

• −5 Buttons do not have an accessible name medium effort
• −3.5 Background and foreground colors do not have a sufficient contrast ratio. medium effort
• −3.5 Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). low effort
• −3.5 Touch targets do not have sufficient size or spacing. medium effort
• −1.5 Heading elements are not in a sequentially-descending order medium effort
• −1.5 Document does not have a main landmark. medium effort