def remove_http_s(url):
    url = url.replace("https://", "") if url.startswith("https://") else url
    url = url.replace("http://", "") if url.startswith("http://") else url
    return url

def is_valid_url(url):
    if (url.startswith("https://")):
        return True
    else:
        return False
    
def get_searxng_instances():
    # SearxNG instances: https://searx.space/
    searx_instances = set()
    searx_instances.add("https://searx.work/")
    searx_instances.add("https://search.ononoki.org/")
    searx_instances.add("https://searxng.nicfab.eu/")
    searx_instances.add("https://searx.be/")    
    
    # searx_instances.add("https://searx.fmac.xyz/")
    # searx_instances.add("https://northboot.xyz/") # FIX
    
    # searx_instances.add("https://serx.ml/") # Offline
    # searx_instances.add("https://searx.ru/")
    # searx_instances.add("https://searx.sp-codes.de/")
    # searx_instances.add("https://searxng.nicfab.eu/")
    # searx_instances.add("https://s.frlt.one/")
    # searx_instances.add("https://search.sapti.me/")
    
    # To list
    list_searx_instances = list(searx_instances)
    return list_searx_instances