If you are using a regular expression to extract the URL from a document via crawler.link_extraction_regular_expression then this option specifies the group to extract.

Setting the key

Set this configuration key in the search package or data source configuration.

Use the configuration key editor to add or edit the crawler.link_extraction_group key, and set the value. This can be set to any valid Integer value.

Default value


If no value is specified, then 5 is used, see crawler.link_extraction_regular_expression