docs: public static Document parseDocument(String url) throws IOException {
          return Jsoup
                  .connect(url)
                  .timeout(Constants.PARSING_TIMEOUT)
                  .userAgent("Mozilla/5.0 (Windows; U; WindowsNT 5.1; en-US; rv1.8.1.6) Gecko/20070725 Firefox/2.0.0.6")
                  .referrer("http://www.google.com")
                  .get();
      }