# Turn capture features on

Each property has a card for every capture feature.
Turning a feature on or off reaches the property's tag within a few minutes.
Only admins can change how tracking is configured.

| Card | What it captures | Starts |
| --- | --- | --- |
| **Page signals** | What kind of page each page is: the platform's page type, the template, the schema.org type, and counts of products, prices and fields | On |
| **Clicks** | Each click on a link, button or picker, and each form sent without one | Off |
| **Scrolling** | How far down each page visitors got, and swipes on carousels and galleries | Off |
| **Friction** | Page speed, JavaScript errors, and rage, dead and error clicks | Off |
| **Data layer** | What the site keeps in its tag manager's data layer | Off |
| **Shopify Checkout** | Carts, checkouts and orders from a Shopify store | Off |

Page views are always captured.

## Page signals

Page signals tell a product page from a cart on the **Page types** page.
Only names from a fixed list and counts leave the page: no text, nothing typed into it and no value.
With page signals off, page type rules can read only the page's path and data layer.

## Clicks

Clicks are read in the Clicks explore, and the **Click types** page says what each click did.
A form's submit sends what its fields held, and a search sends its term, but never a password, a card's security code, a one-time code, a PIN or an anti-forgery token.
See [Privacy and governance](/docs/data-capture/privacy-and-governance) for what is kept.

## Scrolling

Scroll depth is read in the Page views explore, and swipes in the Swipes explore.
A scroll depth is only numbers: how far down the page a visitor got, in pixels and as a share of its height.

## Friction

Friction adds about 10 KB, gzipped, to the tag every visitor downloads.
See [Struggle signals](/docs/data-capture/struggle-signals).

## Data layer

Which data layers and analytics tools are read is set once for the whole organisation, on the **Data layer** page.
The property's card only decides whether that property's pages are read.
See [Existing tags and data layers](/docs/data-capture/existing-tags-and-data-layers).

## Delivery

The **Delivery** card sets how the tag sends events.
**Automatic** sends each event at once, and, while the data layer is read, waits just past the page's snapshot so a page view and its data layer arrive together.
A fixed window, from 1 to 5 seconds, sends fewer requests, a few seconds later.
Either way, what the tag holds is sent as the page closes.

## URL data

The **URL data** card lists the query parameters kept on page URLs, and lets you keep more, or keep the fragment after `#`.
See [Privacy and governance](/docs/data-capture/privacy-and-governance).