NAVER Financial Crawling...

import requests 

url = 'https://finance.naver.com/item/board.nhn?code=000020&page=1'
req = requests.get(url)
html = req.text
print(html)

Url is included, but there is no page requested in the HTML variable.

I think this code used to work before, but it doesn't work when I rewind it today. I wonder if Naver blocked the crawl or if my code is wrong.