Requestly’s Replace String rule allows users to replace a string (or matching pattern) with another string in the url. It looks to be very simple but it can achieve very complex use cases:
- Switching Domains
- Change Query Parameter Values
- Fix broken/updated URLs
- Pattern Matching in Replace Rule
Using Requestly to change the domain of the URL
In this example we will change the domain of the url https://stackexchange.com
with stackoverflow.
- Download and Install the Requestly Chrome extension.
- Click on
Create your first rule
. - Then select
Replace String
and click onCreate rule
. - We’ll be replacing the substring
exchange
withoverflow
. Enterexchange
in the Replace field andoverflow
in the With field. - Save the rule.
![](https://requestly.com/wp-content/uploads/2023/11/pika-1699610145245-1x-1024x460.png)
On opening stackexchange.com, this rule will replace the exchange
substring with overflow
and will load the webpage for stackoverflow.com.
You can try it yourself by importing this rule , also fiddle around and replace different substrings of the URL.