Can AI crawlers read JavaScript?
Also: Client-side rendering, JS rendering for bots
JavaScript and AI crawlers is a visibility risk: many AI crawlers fetch a page's HTML without running its JavaScript, so text that only appears after scripts run can be invisible to them. Googlebot renders JavaScript; support among AI crawlers varies and is not always documented. Server-rendered HTML is the safe choice for key facts.
How to check
Open the page with JavaScript disabled, or fetch it with curl, and see whether your pricing, features and key claims are in the raw HTML. If not, render them on the server.
Example: a pricing table that loads through JavaScript after page load is missing when a crawler reads only the raw HTML.
Related checks
Also confirm that robots.txt and your firewall let the bots reach the page.
Check which AI crawlers your site allowsFree AI crawler checker: GPTBot, ClaudeBot, PerplexityBot and more.