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

# Fair Usage Policy

> The Fair Usage Policy affects unlimited Datacenter Pay/IP traffic options to maintain service consistency.

Multiple threads represent the number of sessions available at the same time.

* Each time you send a request through a proxy, it creates a session.
* If you send multiple requests at the same time, you are running multiple concurrent sessions.

<Note>
  Browsing webpages may generate multiple threads even with a single session to load various resources.
</Note>

## Dynamic Thread Limitations

To ensure fair use of services and maintain optimal performance for all customers, we apply the Fair Usage Policy (FUP) for **unlimited traffic** options when **both** of the following conditions are met:

1. Total traffic usage for a subscription period exceeds **`10TB`**, AND
2. Traffic **per individual IP** exceeds **`25GB`**.

<Note>
  ### How FUP Limitations Work

  Once your usage exceeds the traffic limits described above, we take measures to ensure fair usage across all users and reduce the number of concurrent sessions available for the remaining subscription period.

  **The dynamic threshold is calculated as** **`25GB`for every IP** . For example:

  1. If you have purchased `1000` IPs and a limit of `5000` threads, the FUP threshhold will be `25TB` (`25GB` times `1000`). Once this limit of `25TB` is reached and the fair usage policy applied, concurrent sessions will be reduced from `5000` threads to a limit of **`10`**.
  2. However, If you have purchased `100` IPs, the FUP limitations will only take affect if you exceed `10TB` of data usage.

  * The fair usage policy limitations are reset after a new subscription period is started.
</Note>

***

## Default Thread Limitations

During checkout, you can select from two options for the number of concurrent sessions:

* `1000` threads – default price.
* `5000` threads – for an extra `+40%` of the plan price.
* You can adjust these limits during manual renewal, upgrade, or downgrade.

<Warning>
  ### Thread Limits per Proxy User

  The amount of limited threads is distributed equally among all proxy users you have.

  For example, if you have selected `5000` threads and have `5` proxy users – each proxy user will have a limit of `1000` concurrent threads.
</Warning>

***

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