Does website speed matter for AI search?
By the Pickgap team · Updated Oct 15, 2026 · 1 min read
Speed matters less than whether crawlers can read your content at all. Page experience is part of Google Search, which feeds Google's AI. The bigger risk is content that only appears after JavaScript runs: several AI crawlers fetch the raw HTML and don't run scripts, so facts loaded by JavaScript may be invisible to them. Make sure your key facts are in the page's HTML.
Speed
Google uses page experience signals, including loading speed, as part of ranking, and AI Overviews and AI Mode draw from Google's index. A very slow site can also time out when a crawler or a user-triggered AI fetch tries to read it. Reasonable speed is enough: there's no evidence that shaving milliseconds changes AI recommendations.
JavaScript: the bigger issue
Many modern sites build the page in the browser with JavaScript. Google's crawler runs JavaScript, so it usually sees the full page. Analyses of AI crawler traffic have found that several AI crawlers fetch the HTML and don't run scripts. For them, anything that only appears after JavaScript runs may not exist.
Common culprits:
- Hours, prices or menus loaded from a widget.
- Text that appears in tabs, sliders or accordions built entirely in JavaScript.
- Single-page apps that send an almost empty HTML page.
- Reviews or FAQs embedded from third-party scripts.
How to check
- Open your homepage, right-click and choose "View page source" (not "Inspect").
- Search the source for your phone number, your city, your hours and a service name.
- If they're not in the source, they're probably invisible to crawlers that don't run JavaScript.
What to fix
- Put key facts in plain HTML text: name, city, services, hours, prices or insurance, FAQ.
- If your site builder renders everything with JavaScript, ask whether it supports server-side rendering or pre-rendering.
- Keep embedded widgets for extras, not for the facts AI needs.