JavaScript Rendering Checker: See What Google Actually Sees
Test any URL to find out if search engines can see your JavaScript content. Get clear findings and fixes in seconds, no setup required.
Free with a Brainito account. No credit card required.
Compare Raw and Rendered HTML
See the difference between your initial HTML and the fully rendered page so you know what crawlers might miss.
Spot Hidden Content Issues
Find headings, text, and links that only appear after JavaScript runs and may be invisible to search engines.
Clear Fixes, No Jargon
Every finding comes with a plain language recommendation so you or your developer can fix it fast.
Frequently Asked Questions
What does the JavaScript Rendering Checker do?
It fetches your URL, compares the raw HTML with the rendered version, and flags content, links, and metadata that depend on JavaScript. You get a list of findings with recommendations you can act on right away.
Why does JavaScript rendering matter for SEO?
Search engines can run JavaScript, but rendering is delayed and not guaranteed for every page. If key content only loads client side, it can be indexed late or missed, which hurts rankings. Checking your pages removes the guesswork.
Is the JavaScript Rendering Checker free?
Yes. Create a free Brainito account and run the checker on any public URL. Results come back in seconds, and you can recheck pages after each fix to confirm search engines can see your content.
Find out what Google can see on your site before rankings slip.
One account unlocks javascript rendering checker plus 340+ marketing tools, weekly audits, and your action plan.