The use of tags allows you to select a subset of the sites from big Maigret DB for search.
Warning: tags markup is not stable now.
There are several types of tags:
br… (ISO 3166-1 alpha-2). These tags reflect the site language and regional origin of its users and are then used to locate the owner of a username. If the regional origin is difficult to establish or a site is positioned as worldwide, no country code is given. There could be multiple country code tags for one site.
Site engines. Most of them are forum engines now:
XenForoet al. Full list of engines stored in the Maigret database.
Sites’ subject/type and interests of its users. Full list of “standard” tags is present in the source code only for a moment.
--tags us,jp – search on US and Japanese sites (actually marked as such in the Maigret database)
--tags coding – search on sites related to software development.
--tags ucoz – search on uCoz sites only (mostly CIS countries)