The Usenet Explorer native indexing service is a server application intergrated with Usenet Explorer only.

Comparing to other usenet indexing services which only can search by subject and have limited narrowing newsgroup set options UE native service allows to search for subject and/or author with defining match newsgroup pattern (also through exclusion - boolean wildmats contain the negation operator); in addition there is group kill filter in Usenet Explorer properties to exclude from the search any post belonging to at least one newsgroup matching the kill filter.

Search patterns are not just substrings or wildcards but boolean wildmats - for all subject, author, group and group kill filter fields which allows to run advanced searches.

It is not only possible to look for the last n days but you can also define date or day range for returned results.

Since the indexing server is implemented by the Usenet Explorer author and is not a third party software the server doesn't contain any user logging capability, communication is encrypted (truly encrypted for registered users if serial kept private), so accesses are secure and anonymous.

The server only automatically processes newsserver header feeds, the sole purpose is to exactly reflect newsserver content through indexing without modifying it, giving the categorizing option to users instead, who can set their individual preferences through the narrowing newsgroup set options.

Currently the engine performs indexing of all alt.binaries.* category plus all other newsgroups which could be found on other indexing engines newsgroup lists (4200+ all at all). As to now the indexing server runs on a single desktop grade computer, so technically it is not a problem to increase retention/data volumes further given more hardware.

Headers are fed from 3 newsservers to provide higher completion rate (there is no limit actually).

For details also see Help Notes