# Install on any site

> Add Datacenter to any website. Paste one line into the head of every page, or into the head code setting your site builder has.

Source: https://datacenter.so/docs/install-html
Section: Start here

Every website can run Datacenter. You paste one line into the `<head>` of each page.

## Before you start

Copy your tag. In Datacenter, open [Set up your site](https://app.datacenter.so/start), or open your site's **Settings**. Your tag looks like this, with your own address:

```html
<script defer data-site="yoursite.com" src="https://datacenter.so/s.js"></script>
```

## Steps

1. Open the HTML of each page, or the header file all pages share.
2. Paste the tag just above `</head>`.
3. Save, then upload or publish the change.

## Using a site builder?

Most builders have a setting called head code, header code, custom code or code injection. Paste the tag there. It then runs on every page. We have step-by-step guides for [Shopify](https://datacenter.so/docs/install-shopify), [WordPress](https://datacenter.so/docs/install-wordpress), [Squarespace](https://datacenter.so/docs/install-squarespace), [Wix](https://datacenter.so/docs/install-wix), [Webflow](https://datacenter.so/docs/install-webflow), [Framer](https://datacenter.so/docs/install-framer) and [Google Tag Manager](https://datacenter.so/docs/install-google-tag-manager).

## What the one line does

On paid plans, a new site starts with 90-day tracking, and the tag in setup loads `sa.js` instead of `s.js`. That one line then does three things, with no second step:

- **Visits.** Every page view, with where the visitor came from.
- **Sales and goals.** Conversions tie back to the ad or link that brought the visitor, for 90 days.
- **People.** Someone who signs up, signs in or sends a form with an email field is added to [Profiles](https://datacenter.so/docs/customer-profiles), with their email and name. Password and card fields are never read.

With **Wait for consent** on, the tag stores and sends nothing about a person until they agree. On Free, the plain tag counts visits only.

## Signs people in with Google or a magic link?

Then your site never shows a sign-in form, so the tag has nothing to read. Add one more line, called right after someone signs in:

```js
window.datacenter?.('identify', { email, name, id });
```

`email`, `name` and `id` are the person's email, name and your own user id. Send at least one of email or id. Setup shows this line under **Signs people in with Google or a magic link? Add one more line**, on the install step, and the email to your developer includes it. Sign-up and sign-in forms with an email field need nothing.

## Check it works

Go back to Datacenter. On the last setup step, click **Check my site**. Then open your site in a new tab. Your first visit shows up in a minute or two.

## Good to know

- Add the tag once per page, not twice.
- Single page apps need the tag once, in the main HTML file. See [Add the script](https://datacenter.so/docs/add-the-script).
- Need someone else to do it? On step 2 of setup, press **Email it** or **Text it** under **Send it to your web person**. The message goes from your own email or phone, with the steps and your site's code already in it.