# Optimize Loading Speed Surface forms load fast already. To cut the wait further, tell the browser to prepare its connection to [forms.withsurface.com](http://forms.withsurface.com/) ahead of time, so the form is ready the moment it is triggered. ## How to Optimize [#how-to-optimize] Add the following `` tags inside the `` of your site: ```html ``` Replace `REPLACE ME WITH FORM URL` with a Surface Form URL. If the form uses a custom domain, replace `forms.withsurface.com` in the connection hints with your verified domain. See [Use the Surface Tag with a Custom Domain](/platform/traffic/custom-domains). ## Explanation [#explanation] 1. dns-prefetch → Resolves the domain early to skip DNS lookup delays. 2. preconnect → Prepares the TCP + TLS handshake so the browser is ready to request assets immediately. 3. prefetch → Fetches the form in advance, so it's ready when a user opens it. ## Where to Paste It [#where-to-paste-it] These are `` tags, so they go wherever your platform puts head code. **Project Settings** → **Custom Code** → **Head Code**. Project **Settings** → **Custom Code** → **Start of `` tag**. [WPCode](https://wordpress.org/plugins/insert-headers-and-footers/) → **Code Snippets** → **Header & Footer** → **Header**. `app/layout.tsx`, inside the `` of the root layout. `public/index.html`, inside ``. Bottom toolbar → **JavaScript** → **Add New JavaScript**, placement **"Head"**. Inside ``, on every page that shows the form.