# Parameters & Headers

### How to modify query strings?

Adding custom parameters to link will be useful by two ways. 

Campaigns can be managed on makeshorter by adding custom parameters to url. Campaign ID will be set with custom parameter option. Default url will be the same for all your campaign links. 

Moreover, makeshorter adds dynamic parameters to your default url. 

\[IPADDRESS], \[PLATFORM], \[DEVICE], \[BROWSER], \[COUNTRY\_CODE], \[LANGUAGE]

![sample custom rules for https://makeshoret.com](/files/-Me5VnDJ72XIzfJbLQYg)

<https://makeshorter.com> default url will be modified as <https://makeshorter.com?ip=127.0.0.1\\&lang=en-US\\&campaignId=MS001>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.makeshorter.com/features/custom-parameters-headers.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.