willow-utils/src/main/java/com/btr/proxy/selector/pac/PacScriptMethods.java
@Override
  public int dnsDomainLevels(String host) {
    int count = 0;
    int startPos = 0;
    while ((startPos = host.indexOf(".", startPos + 1)) > -1) {
      count++;
    }
    return count;
  }
@Override
  public int dnsDomainLevels(String host) {
    int count = 0;
    int startPos = 0;
    while ((startPos = host.indexOf(".", startPos + 1)) > -1) {
      count++;
    }
    return count;
  }
***********************************************************************
Returns the number of DNS domain levels (number of dots) in the host name.

@param host
is the host name from the URL.
@return number of DNS domain levels.
**********************************************************************