To spoof the IP address on a website accessed through Selenium, you can use a proxy server. Here's an example of how to do that in Python:

from selenium import webdriver

# Replace PROXY_HOST and PROXY_PORT with the host and port of the proxy server
PROXY_HOST = "PROXY_HOST"
PROXY_PORT = "PROXY_PORT"

# Create a new Chrome webdriver instance
driver = webdriver.Chrome()

# Set the proxy for the webdriver
driver.get("http://{}:{}".format(PROXY_HOST, PROXY_PORT))

# Use the webdriver to visit a website
driver.get("http://www.example.com")

This code creates a new instance of the Chrome webdriver and sets the proxy using the PROXY_HOST and PROXY_PORT variables. You can then use the webdriver to visit a website and the IP address used to access the website will be the one provided by the proxy server.

Keep in mind that using a proxy server to spoof your IP address may not always work, and it may also be illegal in some cases. You should use this technique with caution and only if you have a legitimate reason for doing so.