What Is a Backconnect Proxy and How Does It Work?
Unlike its HTTP or SOCKS brothers, a backconnect proxy is not a specific proxy per se. Instead, backconnect proxy is a term describing a proxy pool gateway.
Typically, upon purchasing a proxy subscription, you will have access to a range of IP addresses according to the proxies for the service you select. Under normal conditions, you would need to reconnect to a different IP address to switch proxies manually. This manual switching procedure causes interruptions in service and generally slows your workflow.
A backconnect proxy uses specialized software to switch and rotate requests across a range of proxies automatically. Automatic switching can significantly increase the efficiency of operations such as data scraping and sneaker searching.
The pool of proxies could be theoretically made up of residential, corporate, or even mobile proxies— although residential pools are the most common.
When the client makes a fetch request to a website, the proxy pool software will determine which proxy is best for that request. The software may consider several statistics, such as total requests made and the location of the host. The managing software itself decides when to change IP addresses and which proxy is best.
These operations happen transparently to the client, while the entire transaction appears completely normal to the host.
Downsides of a Backconnect Proxy
As wonderful as backconnect proxies are, they do have a few negatives to consider. For one, there may be a few scenarios where you do not want your IP address to change constantly. For example, if you operate several user profiles on a website or forum, you probably want to maintain the IP addresses for the accounts.
Some file servers or login methods utilize an IP address whitelist. While this method is uncommon, it is still in use by some service providers. In such cases, a changing IP address could prevent access.
The other minus of backconnect proxies usually comes in the form of higher cost. Because backconnect proxies typically use more resources and require beefier hardware to maintain, they come at a premium. Even so, depending on the size of the pool, a backconnect proxy may be more affordable versus purchasing hundreds or thousands of separate proxies.