JAVASCRIPT

website link regex stackoverflow

var regex = new RegExp("^(https://www.){1}([0-9A-Za-z-.@:%_+~#=]+)+((.[a-zA-Z]{2,3})+)(/(.)*)?(?(.)*)?";);

if(regex.test("http://google.com")){
  alert("Successful match");
}else{
  alert("No match");
}

website link regex stackoverflow

var regex = new RegExp("^(http[s]?://(www.)?|ftp://(www.)?|www.){1}([0-9A-Za-z-.@:%_+~#=]+)+((.[a-zA-Z]{2,3})+)(/(.)*)?(?(.)*)?");

if(regex.test("http://google.com")){
  alert("Successful match");
}else{
  alert("No match");
}

website link regex stackoverflow

https?://(www.)?[-a-zA-Z0-9@:%._+~#=]{1,256}.[a-zA-Z0-9()]{1,6}([-a-zA-Z0-9()@:%_+.~#?&//=]*)