is_404()
Function: Determines whether the query has resulted in a 404 (returns no results).
Source: wp-includes/query.php:858
is_embed()
Function: Is the query for an embedded post?
Source: wp-includes/query.php:878
is_main_query()
Function: Determines whether the query is the main query.
Source: wp-includes/query.php:902
is_search()
Function: Determines whether the query is for a search.
Source: wp-includes/query.php:696
is_single()
Function: Determines whether the query is for an existing single post.
Source: wp-includes/query.php:729
is_singular()
Function: Determines whether the query is for an existing single post of any post type (post, attachment, page, custom post types).
Source: wp-includes/query.php:762
is_time()
Function: Determines whether the query is for a specific time.
Source: wp-includes/query.php:786
is_trackback()
Function: Determines whether the query is for a trackback endpoint call.
Source: wp-includes/query.php:810
is_month()
Function: Determines whether the query is for an existing month archive.
Source: wp-includes/query.php:553
is_page()
Function: Determines whether the query is for an existing single page.
Source: wp-includes/query.php:584