WP_Query::is_author()
Method: Is the query for an existing author archive page?
Source: wp-includes/class-wp-query.php:4071
WP_Query::is_search()
Method: Is the query for a search?
Source: wp-includes/class-wp-query.php:4488
WP_Query::is_category()
Method: Is the query for an existing category archive page?
Source: wp-includes/class-wp-query.php:4110
WP_Query::is_single()
Method: Is the query for an existing single post?
Source: wp-includes/class-wp-query.php:4509
WP_Query::is_tag()
Method: Is the query for an existing tag archive page?
Source: wp-includes/class-wp-query.php:4149
WP_Query::is_singular()
Method: Is the query for an existing single post of any post type (post, attachment, page, custom post types)?
Source: wp-includes/class-wp-query.php:4563
WP_Query::is_tax()
Method: Is the query for an existing custom taxonomy archive page?
Source: wp-includes/class-wp-query.php:4198
WP_Query::is_time()
Method: Is the query for a specific time?
Source: wp-includes/class-wp-query.php:4583
WP_Query::is_comments_popup()
Method: Whether the current URL is within the comments popup window.
Source: wp-includes/class-wp-query.php:4240
WP_Query::is_trackback()
Method: Is the query for a trackback endpoint call?
Source: wp-includes/class-wp-query.php:4594