[Security Center] Scan by geography (#21951)

* [Security Center] Scan by geography

* Add API link

* Modify wording

* Apply suggestions from code review

Co-authored-by: Jun Lee <[email protected]>

---------

Co-authored-by: Jun Lee <[email protected]>

Author: Maddy-Cloudflare

src/content/docs/radar/investigate/url-scanner.mdx

@@ -158,7 +158,15 @@ Alternatively, you can search in the Security Center:
 2. Go to **Security Center** > **Investigate**.
 3. Enter your query and select **Search**.
 
-In the Security Center, you can retrieve information already pre-filtered by:
+You can scan a URL by location:
+
+1. Enter your URL.
+2. Go to **Location** > select which country to scan from.
+3. Select **Scan now**.
+
+You can also use the [API](https://developers.cloudflare.com/api/resources/url_scanner/subresources/scans/methods/create/#(params)%20default%20%3E%20(param)%20account_id%20%3E%20) to scan a URL from a specific location.
+
+In Security Center, you can retrieve pre-filtered information by:
 
 - Similar screenshot
 - Identical favicon