import re
regex = r'''\b(25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.(
25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.(
25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.(
25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\b'''
url_string = "http://110.234.52.124/paypal.ca/index.html"
print( bool(re.search(regex, url_string, re.X)) )
aW1wb3J0IHJlCgpyZWdleCA9IHInJydcYigyNVswLTVdfDJbMC00XVswLTldfFswLTFdP1swLTldWzAtOV0/KVwuKCAKICAgICAgICAgICAgMjVbMC01XXwyWzAtNF1bMC05XXxbMC0xXT9bMC05XVswLTldPylcLiggCiAgICAgICAgICAgIDI1WzAtNV18MlswLTRdWzAtOV18WzAtMV0/WzAtOV1bMC05XT8pXC4oIAogICAgICAgICAgICAyNVswLTVdfDJbMC00XVswLTldfFswLTFdP1swLTldWzAtOV0/KVxiJycnCnVybF9zdHJpbmcgPSAiaHR0cDovLzExMC4yMzQuNTIuMTI0L3BheXBhbC5jYS9pbmRleC5odG1sIgpwcmludCggYm9vbChyZS5zZWFyY2gocmVnZXgsIHVybF9zdHJpbmcsIHJlLlgpKSAp