}

        idx = url.indexOf('/');
        if (idx >= 0) {
            url = url.substring(0, idx);
        }

        if (url.equals(originalUrl)) {
            return getFessConfig().getCrawlerDocumentUnknownHostname();
        }

        return url;
    }

    default String getSite(final String u, final String encoding) {
        if (StringUtil.isBlank(u)) {
            return StringUtil.EMPTY; // empty

     * The value is, e.g. unknown <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getCrawlerDocumentUnknownHostname();

    /**
     * Get the value for the key 'crawler.document.use.site.encoding.on.english'. <br>
     * The value is, e.g. false <br>