A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.
Use it for the user authentication on Drupal core or third-party modules.
Use it for the management of changes to documents and other information stored as computer files.
The Apache HTTP Server, commonly referred to as Apache, is an open-source HTTP server for modern operating systems.
Use it for questions about facilities for informing users of changes on a site, such as changes to nodes or taxonomies.
Use it for questions about the core API that allows developers to split a big task in several minor chunks or batches.
The act of saving files, data, or applications to a secondary media is called backing up.
Use it for questions about moving from a major release of Drupal to the next.
Use it for Drupal 8 plugins; for plugins implemented from the Views module use views, ctools for Chaos tool suite plugins.
Use it for the service that provides payment processing for e-commerce transactions.
Use it for questions on the module which allows users to earn and use points through various activities: the Userpoints module.
for questions about various types of reporting in Drupal, including the ones shown /admin/reports.
Use it for questions about the services provided by Drupal.org.
Use it for questions about selecting or using any of the charting 'modules' and/or charting 'libraries' in Drupal.
Use it for questions about the suite of modules for managing content inside Drupal: the Workbench project.
Privatemsg allows your site's visitors to send private messages to each other.
A specially written PHP callback whose parameters are configured through the web is, in Drupal terminology, an action.
Full copies of Drupal that include Drupal Core, along with additional software are called, in Drupal terminology, distributions.
Use it for questions about deployment: staging content, managing and syncing sites across multiple servers.
Installation profiles combine core Drupal, contributed modules, themes, and pre-defined configuration into one download.
Use it for questions about Google Analytics integration with Drupal website.
The process to merge files together to improve a site performance with less server requests is called file aggregation.
Use it for questions about the operations done from Drupal to initialize itself, not about Twitter Bootstrap.
Use it for questions about modal popup dialogs, including the overlay implemented in the Drupal 7 Overlay module.
Drupal allows a restrict set of users to access the site when maintenance tasks run: the maintenance mode.
Use it for questions about the queue of messages displayed to the client.
A challenge-response test used for determining human users is called CAPTCHA.
Use it for questions about theset of Drupal modules that helps you maintain your Drupal sites: Aegir.
Use it for questions about the free Mac or Windows based AMP made available from Acquia.