WordPress is_home() conditional tag not working

where is that code located?

is your template using custom queries?

are you using plugins?

what theme are you using?

m useing theme :-responsive
url:- https://www.ads-software.com/extend/themes/responsive

not using plugins

this code <?php
if ( is_home() ) {
// This is a homepage
} else {
// This is not a homepage
}
?>

using in header.php

are you testing for the ‘posts page’ or the ‘front page’?

check the difference between is_home() and is_front_page()

https://codex.www.ads-software.com/Conditional_Tags