is_tag()WP 2.3.0

Is the query for an existing tag archive page?

If the $tag parameter is specified, this function will additionally check if the query is for one of the tags specified.

For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.

No Hooks.


true|false. Whether the query is for an existing tag archive page.


is_tag( $tag );
Tag ID, name, slug, or array of such to check against.
Default: ''



#1 Usage Examples

// When any tag archive page is displayed.

is_tag( '30' );
// When the archive page is displayed tags with ID 30.

is_tag( 'metka' );
// When the archive page is displayed tags with the 'metka' slug.

is_tag( 'Tag' );
// When the tag page with the name 'Tag' is displayed.

is_tag( [ 30, 'metka', 'Tag' ] );
// returns true when page with posts from tag with:
// ID 30, or slug "metka", or tag name "Tag"  is displayed.


  • Global. WP_Query. $wp_query WordPress Query object.


Since 2.3.0 Introduced.

is_tag() code WP 6.5.3

function is_tag( $tag = '' ) {
	global $wp_query;

	if ( ! isset( $wp_query ) ) {
		_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
		return false;

	return $wp_query->is_tag( $tag );