# Managed proxy

Serve the ProductLense script and send events from a subdomain of your own domain with one CNAME record, without running a proxy server.

The managed proxy serves the script and receives events on a subdomain of your own site, for example `a.yourdomain.com`. Ad blockers that block analytics hosts let first-party requests through, so fewer visits go missing. You add one DNS record; there is no server to run.

## Set it up

1. In ProductLense, open your site's Settings → Proxy, type a new subdomain of your site (for example `a.yourdomain.com`) and click Add hostname. It must be a subdomain you do not already serve pages on.
2. At your DNS provider, add the CNAME record the tab shows: your subdomain pointing to `proxy.productlense.app`. If you use Cloudflare for your own DNS, set the record to **DNS only** (grey cloud).
3. Wait for the status to turn **Active**. ProductLense checks every few seconds while the tab is open; the certificate is issued automatically, usually within a few minutes. If it stays on waiting, add the TXT record the tab shows as well.
4. Replace your ProductLense script tag with the one the tab shows once active:

```html title="index.html"
<script defer data-site="SITE_ID" src="https://a.yourdomain.com/a.js"></script>
```

The script sends events to the host it loads from, so nothing else changes. Keep the old tag until the new hostname is active.

## What the subdomain serves

Only the script (`/a.js`), event collection (`/api/e`, and `/api/e/app` for the mobile SDKs) and the visitor id endpoint (`/api/vid`). Everything else, including the dashboard and webhooks, stays on `api.productlense.app`.

## Remove it

Switch your script tag back to `https://api.productlense.app/a.js` first, then click Remove in Settings → Proxy and delete the DNS record. Events sent to a removed hostname are lost.

## Limits

- One hostname per site.
- Visitor counts, countries and devices are unchanged: ProductLense sees the visitor's address the same way as on `api.productlense.app`.
- Prefer to proxy through your own server instead? See the [proxy overview](/docs/proxy/overview) and the platform guides.

## Check it works

Open `https://a.yourdomain.com/a.js` in a browser: it should load the script with a valid certificate. Then visit your site with the new tag and open the [Events page](/docs/dashboard/raw-events-and-export): your pageview appears within a few seconds.