.url(server.url("/"))
        .head()
        .header("User-Agent", "SyncApiTest")
        .build()
    executeSynchronously(request)
      .assertCode(200)
      .assertHeader("Content-Type", "text/plain")
    val recordedRequest = server.takeRequest()
    assertThat(recordedRequest.method).isEqualTo("HEAD")
    assertThat(recordedRequest.headers["User-Agent"]).isEqualTo("SyncApiTest")

    /** The key of the message: Excluded URLs For Indexing */
    public static final String LABELS_excluded_doc_urls = "{labels.excluded_doc_urls}";

    /** The key of the message: User Agent */
    public static final String LABELS_user_agent = "{labels.user_agent}";

    /** The key of the message: Create */
    public static final String LABELS_web_crawling_button_create = "{labels.web_crawling_button_create}";