[AI Search] add changelog

Author: Naapperas

src/content/changelog/ai-search/2026-04-08-ai-search-content-selectors.mdx

@@ -0,0 +1,40 @@
+---
+title: AI Search CSS content selectors for precise content extraction
+description: Control which parts of crawled pages are indexed using CSS selectors.
+products:
+  - ai-search
+date: 2026-04-08
+---
+
+[AI Search](/ai-search/) now supports [CSS content selectors](/ai-search/configuration/data-source/website/#content-selectors) for website data sources. You can now define which parts of a crawled page are extracted and indexed by specifying CSS selectors paired with URL glob patterns.
+
+Content selectors solve the problem of indexing only relevant content while ignoring navigation, sidebars, footers, and other boilerplate. When a page URL matches a glob pattern, only elements matching the corresponding CSS selector are extracted and converted to Markdown for indexing.
+
+Configure content selectors via the dashboard or API:
+
+```bash
+curl "https://api.cloudflare.com/client/v4/accounts/{account_id}/ai-search/instances" \
+  -H "Authorization: Bearer {api_token}" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "id": "my-ai-search",
+    "source": "https://example.com",
+    "type": "web-crawler",
+    "source_params": {
+      "web_crawler": {
+        "parse_options": {
+          "content_selector": [
+            {
+              "path": "**/blog/**",
+              "selector": "article .post-body"
+            }
+          ]
+        }
+      }
+    }
+  }'
+```
+
+Selectors are evaluated in order, and the first matching pattern wins. You can define up to 10 content selector entries per instance.
+
+For configuration details and examples, refer to the [content selectors documentation](/ai-search/configuration/data-source/website/#content-selectors).