Python function for checking whether a site is down or not

isitdown.py

import re
import requests

def isitdown(domain, return_bool=True):
    """ 
    Uses the website 'isitdownrightnow.com' to check
    whether the domain provided is down or not.
    

    Parameters
    ----------
    domain : str
        The url for the website that is to be checked
    return_bool : bool
        True means 'down'/'up' is returned whilst
        False means True/False is returned

    Returns
    -------
    bool/str
        True/'down' if site is down, False/'up' otherwise.

    """
    
    isitdown_url = f'https://www.isitdownrightnow.com/check.php?domain={domain}'

    r = requests.get(isitdown_url)
    
    r_text = (r
              .text
              .lower()
              .replace('</div>', ' ')
             )
    
    status = (re
              .compile(f'{domain} is (.*) (?:it is not|and reachable)') 
              .search(r_text)
              .group(1)
              .split(' ')
              [0]
             )
    
    if return_bool == True:
        return status == 'down'
    else:
        return status