---
title: "Good to know about Quantcast"
slug: "good-to-know-about-quantcast"
description: "Learn more about request limits, historical range, and things to consider when using the Quantcast data source in Supermetrics."
updated: 2026-10-28T12:12:47Z
published: 2026-10-28T12:12:47Z
canonical: "docs.supermetrics.com/good-to-know-about-quantcast"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.supermetrics.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Good to know about Quantcast

This article gives you tips for building queries and reports that return the data you need, including how the API of this data source handles certain fields and metrics.

If you’re connecting to Quantcast, follow the instructions in our [connection guide](/v1/docs/quantcast-connection-guide). See [Quantcast metrics and dimensions](/v1/docs/quantcast-fields) for the fields available in this data source.

## Request limits and recommended refresh window

**Request limit**: 5 requests per second and maximum of 10 concurrent requests.

**Recommended refresh window**: 2-3 days

## Historical range

There are no known limitations to the historical range of data you can pull with the Quantcast data source connector.

## Accounts in Quantcast

The Quantcast data source connector supports fetching data from an unlimited number of accounts.

## Things to consider

### Reach and frequency data

We’re currently missing support for Reach and Frequency metrics because of the way the API returns data. The fields are available, but if implemented, there would be discrepancies in the results. We’re looking into ways to work around this.

## More resources

- [Quantcast connection guide](/v1/docs/quantcast-connection-guide)
- [Quantcast metrics and dimensions](/v1/docs/quantcast-fields)