Ask this site for VitePress

Add the script to the head in your config, then put the box on any page.

.vitepress/config.mts

export default {
  head: [["script", { src: "https://askthissite.com/embed.js", async: "" }]],
};

Any .md page

<div data-everypage-site="YOUR-SITE-ID"></div>

Your site id is on your site's page after you sign up.