requestBody.put("name", NAME_PREFIX + "WebConfig");
        requestBody.put("urls", urls);
        requestBody.put("included_urls", includedUrls);
        requestBody.put("user_agent", "Mozilla/5.0");
        requestBody.put("depth", 0);
        requestBody.put("max_access_count", 2L); // Minimal: 1 success + 1 failure
        requestBody.put("num_of_thread", 1);

    // User Agent Configuration
    // ============================================================

    /** Prefix for Fess crawler user agent string. */
    public static final String CRAWLING_USER_AGENT_PREFIX = "Mozilla/5.0 (compatible; Fess/";

    /** Suffix for Fess crawler user agent string with bot information URL. */
    public static final String CRAWLING_USER_AGENT_SUFFIX = "; +http://fess.codelibs.org/bot.html)";