1. To clear the cache, you need to click on the button  "Clear cache for this page" at the top right of your page.

 

 

2. Then click on the button  "clear cache" above, located to the right of your name/logout.


 
Then you have 2 options, choose the second :

>  Flush general caches : clear frontend and page-related caches, plus some backend-related caches.

 

 
3. To finish, click on the button  "clean CDN cache" is still at the top right of your page.

 

 
Follow the instructions on the screen
Select the website(s) that concern you. Then copy the URL of the desired page, then finalize by clicking on "Clear cache".

 

Once the cache cleared, your changes on the website will be updated and visible online by all users.