public int getStartingUrlsCount() {
      return startingUrls_.size();
    }
<pre>
Required. The starting URLs from which the scanner finds site pages.
</pre>

<code>repeated string starting_urls = 4 [(.google.api.field_behavior) = REQUIRED];</code>

@return The count of startingUrls.
java-websecurityscanner/proto-google-cloud-websecurityscanner-v1beta/src/main/java/com/google/cloud/websecurityscanner/v1beta/ScanConfig.java