To change the display of the title – the title of the site that appears in the browser – you must do the following:
- go to the dashboard of the site
- сhoose All in One SEO (if you do not have this plugin, this method will not help)
- scroll down to Homepage settings and change Home Title
Don’t you have the All in One SEO plugin? First of all, why not put it in. And second, you should go to Appearance and select the Editor tab in WordPress.
Depending on your template, you should find either header.php or title.php
Then look for bloginfo( ‘name’ ) in the code and google how to properly configure how to display the title in php in wordpress