How to Set Up Proxies in Selenium (Python)

from selenium import webdriver

options = webdriver.ChromeOptions()
options.add_argument("--proxy-server=http://host:port")

driver = webdriver.Chrome(options=options)
driver.get("https://httpbin.org/ip")
print(driver.page_source)

Chrome's --proxy-server flag does not accept inline user:pass credentials, so for authenticated proxies you either whitelist your IP with the provider or load a small background extension that answers the auth prompt. IP authentication is the cleanest path for headless Selenium; credential extensions are the fallback when your egress IP is dynamic. Rotation is typically handled by pointing every session at a rotating gateway rather than swapping the flag per request.

For browser automation, give each Selenium (Python) browser context its own sticky-session endpoint so every sub-request in a page load shares one IP — per-request rotation would break the session.

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