Refresh page defaul or index .aspx in the browser

Hello. I modified the default.aspx page on my site hosting but the browser continues reading the old default.aspx (which is in its cache). This will probably happen in my clients' browsers. Entering the site address (www.mysite.com) loads the page that is in the cache, but if I add /default.aspx loads the new page, which is on the server. Since this is the first page to load, I do not know how to force its update, following some explanations I found here on the site. Thank you.