Test Website Without JavaScript
Check if your website requires JavaScript and how JS impacts performance.
Want a fast site that passes Google's Core Web Vitals? Try DebugBear monitoring.
Compare how your website looks with and without JavaScript
Does your website require JavaScript to render?
Check whether your website renders correctly when JavaScript isn't available.
See what page content depends on JavaScript
Compare what content only displays after JavaScript has run and what content does not depend on JS.
JavaScript impacts page speed
Content that depends on JavaScript loads more slowly
JS increases page weight
JavaScript code bundles need to be downloaded and once the code is run they often trigger additional requests on the page.
Does your website use client-side rendering?
Single-page JavaScript apps often don't show content without JS
Page crawlers may not see your content
While Google does run JavaScript when crawling pages, other search engines and social media crawlers don't.
Monitor JavaScript Performance Impact
Track how JS affects your Core Web Vitals and page load times.
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