JavaScript, rendering and what agents can read
Many AI agents read only the HTML your server sends and never run JavaScript. If your prices, descriptions or menus only appear after scripts run, those agents never see them. Everything we have on making content readable without JavaScript.
Start hereWhy AI agents can't see your JavaScript-only contentMany AI agents read only the HTML your server sends. How to check what they see, what usually goes missing, and how to fix it with server rendering.Read the guide
What AgentScore checks
- Content loads without JavaScript Most AI crawlers and many assistants don't run JavaScript. If your content only appears after scripts run, they see an empty page. Usually fixed by Developer
- Clear page title, description, and headings Clear titles, descriptions and headings are how agents work out what a page is about and whether it answers the question they were asked. Usually fixed by SEO or content team
- Images have text descriptions Agents can't see images. Alt text tells them what a product photo shows. Usually fixed by SEO or content team
- Valid sitemap A sitemap helps crawlers and agents find all your important pages, including ones that aren't linked from the home page. A sitemap over 50 MB or 50,000 URLs, the most crawlers and agents will read, is flagged: split it into smaller sitemaps so nothing gets missed. Usually fixed by SEO or content team
Guides
Alt text for AI agents: describing product imagesWhy AI agents rely on alt text, what AgentScore checks, and how to write useful descriptions for product photos across a whole catalog.
XML sitemaps for AI agentsHow AI agents and crawlers use your sitemap, what AgentScore checks, what to include and how to keep it accurate.
Titles, descriptions and headings AI agents understandHow AI agents use page titles, meta descriptions, headings and the lang attribute, and how to write each so agents pick the right page.
Iframes, shadow DOM and embedded widgets for AI agentsWhat AI agents miss inside booking engines, review widgets and other iframes or shadow DOM, and the fallbacks that keep key facts within their reach.
From the blog
AI agents are making server-rendered HTML matter againAI agents that read raw HTML have turned server rendering and hydration into a business decision. What to render on the server and what to ask your team.
How AgentScore renders your pages in a real browserWhich pages AgentScore opens in a headless browser, with what settings and safeguards, how it looks for WebMCP tools, and what it never does.
What an AI agent sees when it visits your storeOne product page, three views: the raw HTML an assistant reads, the rendered page a browser agent sees, and the accessibility tree it acts on.
Free tools
Terms to know
- Raw HTML The page exactly as your server sends it, before any JavaScript runs.
- Server-side rendering (SSR) and static generation Ways of building pages so the content is already in the raw HTML, rather than added afterwards by JavaScript.
- Alt text A short text description of an image.
- XML sitemap A file listing the pages you want found, so crawlers and agents don't depend on following links.
- Canonical URL The one address you name as the main version of a page that can be reached in several ways.