# Package org.apache.nutch.net

package org.apache.nutch.net
Web-related interfaces: URL `filters` and `normalizers`.

- Related Packages
  Package
  Description
  org.apache.nutch.net.protocols
  Helper classes related to the `Protocol` interface, see also `org.apache.nutch.protocol`.
- Class
  Description
  URLExemptionFilter
  Interface used to allow exemptions to external domain resources by overriding `db.ignore.external.links`.
  URLExemptionFilters
  Creates and caches `URLExemptionFilter` implementing plugins.
  URLFilter
  Interface used to limit which URLs enter Nutch.
  URLFilterChecker
  Checks one given filter or all filters.
  URLFilterException
  URLFilters
  Creates and caches plugins implementing `URLFilter`.
  URLNormalizer
  Interface used to convert URLs to normal form and optionally perform substitutions
  URLNormalizerChecker
  Checks one given normalizer or all normalizers.
  URLNormalizers
  This class uses a "chained filter" pattern to run defined normalizers.