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
WP_Query::is_date()
Method: Is the query for an existing date archive?
Source: wp-includes/class-wp-query.php:4253
WP_Query::is_year()
Method: Is the query for an existing year archive?
Source: wp-includes/class-wp-query.php:4605
WP_Query::is_day()
Method: Is the query for an existing day archive?
Source: wp-includes/class-wp-query.php:4264
WP_Query::is_404()
Method: Is the query a 404 (returns no results)?
Source: wp-includes/class-wp-query.php:4616