}

      // If the domain is a suffix of the url host, it must not be a public suffix.
      if (urlHost.length != domain.length &&
        PublicSuffixDatabase.get().getEffectiveTldPlusOne(domain) == null
      ) {
        return null
      }

      // If the path is absent or didn't start with '/', use the default path. It's a string like

   * | `http://127.0.0.1`            | null                 |
   */
  fun topPrivateDomain(): String? =
    if (host.canParseAsIpAddress()) {
      null
    } else {
      PublicSuffixDatabase.get().getEffectiveTldPlusOne(host)
    }

  @JvmName("-deprecated_url")
  @Deprecated(
    message = "moved to toUrl()",
    replaceWith = ReplaceWith(expression = "toUrl()"),
    level = DeprecationLevel.ERROR,
  )