private static @NotNull String unifyUrl(@NotNull String url) {
    if (StringUtil.isEmptyOrSpaces(url)) return url;

    Couple<String> schemeAndUrl = UriUtil.splitScheme(url);
    String urlWithoutScheme = schemeAndUrl.second;
    if (StringUtil.isEmptyOrSpaces(urlWithoutScheme)) return url;

    return HTTP_SCHEME_URL_PREFIX + urlWithoutScheme;
  }
private static @NotNull String unifyUrl(@NotNull String url)