# Custom Domain

Sometimes Ad-blockers will block our `metrical.xyz` domain in order to try to give their users a better privacy and navigation. As we said it before, we don't store any personal information about visitors of your site,  but we offer a solution about this problem: you can setup a subdomain of your main domain to serve the metrical script and calls. 

With this solution, Ad-blockers won't block our script and calls and you will be able to use Metrical as normal. 

### How to add a custom domain to Metrical 

Open your domain provider (Godaddy, Namecheap, ect) and add a subdomain of your choice with a  `CNAME` record pointing to `cdn.metrical.xyz.` (add also the last dot `.`)

Something like this:

`CNAME`       **log.customdomain.com**       `cdn.metrical.xyz.`

Then, add the exact subdomain (without https\:// or http\://) to the settings page of an application on Metrical. This is necessary to obtain a SSL certificate with [Let’s Encrypt](https://letsencrypt.org/), so your data (and the visits of your users will be safe and protected by HTTPS.

### How to change the tracking script to use a custom domain 

Change cdn.metrical.xyz to your custom domain inside the tracking script, and also add the `host` property inside the `metrical` object.

Like this:

```javascript
<script>
  window.metrical = {
    "app": "Your website UUID",
    "host": "https://log.customdomain.com"
  }
</script>        
<script async
    src="https://log.customdomain.com/script.js"
    type="text/javascript">
</script>
```

After that, you are ready to go!