ProxySaver Setup Scripts via PAC File

PAC File offers a niche but extremely powerful proxy control features. PAC file allows to filter, load balance, and route traffic, and once the config URL is set in your system, you can swap providers seamlessly in case of a failure.

A Proxy Auto-Configuration (PAC) file is a JavaScript function definition that determines whether web browser requests (HTTP, HTTPS, and FTP) go direct to the destination or are forwarded to a web proxy server.

You can reference and redirect the traffic across multiple proxy saver instance based on the host. For example, when your upstream proxy blocks a domain, you can route to another automatically.

Usage

Scrapfly provides a default clouded PAC File, bound to each of your Proxy Saver instance, so you can update this file according to your needs in your dashboard:

pacfile management for a specific proxy saver instance

You can then retrieve your PAC for all your usage directly via the Scrapfly API, bound to your Proxy Saver proxy id. You can use them for example to feed your ChromeDriver with this pac:

Or even at system level if relevant to your setup:

windows 11 proxy setup script settings

Summary