Website Loading Only once then access denied - Selenium Webdriver - selenium

Question

We are trying to access a website
Url=https://www.nseindia.com/option-chain using selenium.
However, it loads only once if we reload it, we get an access denied error.
CODE-
from webdriver_manager.chrome import ChromeDriverManager
import time
from selenium.webdriver.chrome.options import Options
opts = Options()
user_agent = ('Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) '
'AppleWebKit/537.36 (KHTML, like Gecko) '
'Chrome/39.0.2171.95 Safari/537.36')
opts.add_argument(f'user-agent={user_agent}')
opts.add_argument('--disable-infobars')
browser = webdriver.Chrome(ChromeDriverManager().install())
browser.get('https://www.nseindia.com/option-chain')
time.sleep(1000)

Answer 1

Some website use anti-bot protection, that can detect your bot thanks to some differencies between automated brower and standard browser.
You should try to add these settings:
opts.add_argument('--disable-blink-features=AutomationControlled')
opts.add_experimental_option('useAutomationExtension', False)
opts.add_experimental_option("excludeSwitches", ["enable-automation"])
If this don't work, try Undetected Chromedriver, it work like the standard chrome driver, but it patch it with more setting to increase stealthiness.
By the way, your user-agent looks a little bit outdated, you should sue a newer one according to your chromedriver version, like this one: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36

Answer 2

options.add_argument("--disable-infobars")
options.add_argument("--disable-notifications")
options.add_argument("--disable-default-apps")
options.add_argument("--disable-web-security")
options.add_argument("--disable-site-isolation-trials")
options.add_argument("--disable-logging")
options.add_argument("--disable-bundled-ppapi-flash")
options.add_argument("--disable-gpu-compositing")
options.add_argument("--disable-gpu-shader-disk-cache")
options.add_argument('--disable-blink-features=AutomationControlled')
options.add_argument("--disable-extensions")
options.add_argument("--log-level=3")
# options.add_argument("--window-size=600,600")
# options.page_load_strategy = 'none'
options.add_experimental_option("excludeSwitches", ["enable-automation"])
options.add_experimental_option('useAutomationExtension', False)