Website Crawling for AI Chatbots: Automatically Indexing URLs and Sitemaps

Uploading static PDF manuals works well for foundational company policies, but living websites update constantly: blog posts are published, inventory changes, and pricing tables are updated.

An automated web crawler solves this by fetching your live web pages over HTTP, stripping out layout noise, extracting meaningful body paragraphs, and piping the cleaned text directly into your vector embeddings index.

There are two primary methods for crawling websites:

1. XML Sitemap Crawling (Recommended)

Providing a direct sitemap URL (e.g., https://yourdomain.com/sitemap.xml) is the cleanest method. The scraper reads the structured XML tags, respects canonical URLs, and ignores orphan or non-indexable utility pages.

2. Recursive Deep Crawling

If an XML sitemap is unavailable, recursive crawling begins at your homepage and follows internal hyperlinks up to a specified depth (e.g., Depth 3). While effective, it can accidentally crawl calendar widgets, faceted search query parameters, and duplicate filter pages unless strict exclusion rules are configured.

A common mistake in crude web scrapers is indexing every HTML element on the page. If your website has a header menu with 25 navigation links and a copyright footer, indexing that boilerplate on every single page pollutes your vector database.

ChatCraft uses intelligent DOM tree isolation:

• Scripts discard <header>, <nav>, <footer>, and <aside> tags.
• The scraper focuses strictly on semantic content tags like <main>, <article>, and core <p> / <h1>-<h6> headings.
• Tables are transformed into structured Markdown grids to preserve column-row relationships.

Websites built with client-side React, Vue, or Angular present an empty HTML shell to standard HTTP GET requests. If a crawler cannot execute JavaScript, it extracts zero content.

ChatCraft utilizes headless Chromium browsers to wait for network idle states and render dynamic JavaScript content before extracting the live DOM. This ensures documentation portals built with Docusaurus, GitBook, or custom React apps are indexed completely without manual copy-pasting.

In your ChatCraft knowledge base settings, you can schedule recurring re-crawls (e.g., weekly or monthly). The crawler compares HTTP ETag and Last-Modified headers, only re-indexing pages whose content has changed, conserving computational overhead while ensuring your bot always delivers current answers.