Get The Current Domain Name With Javascript (Not the path, etc.)

Question

I plan on buying two domain names for the same site. Depending on which domain is used I plan on providing slightly different data on the page. Is there a way for me to de

Answer 1

If you are not interested in the host name (for example www.beta.example.com) but in the domain name (for example example.com), this works for valid host names:

function getDomainName(hostName)
{
    return hostName.substring(hostName.lastIndexOf(".", hostName.lastIndexOf(".") - 1) + 1);
}

Answer 2

Try to run in script : path: http://localhost:4200/landing?query=1#2

console.log(window.location.hash)

Location have following values:

window.location.hash: "#2"
​
window.location.host: "localhost:4200"
​
window.location.hostname: "localhost"
​
window.location.href: "http://localhost:4200/landing?query=1#2"
​
window.location.origin: "http://localhost:4200"
​
window.location.pathname: "/landing"
​
window.location.port: "4200"
​
window.location.protocol: "http:"

window.location.search: "?query=1"

Answer 3

I'm new to JavaScript, but cant you just use: document.domain ?

Example:

<p id="ourdomain"></p>

<script>
var domainstring = document.domain;
document.getElementById("ourdomain").innerHTML = (domainstring);
</script>

Output:

domain.com

or

www.domain.com

Depending on what you use on your website.

Answer 4

You can get it from location object in Javascript easily:

For example URL of this page is:

http://www.stackoverflow.com/questions/11401897/get-the-current-domain-name-with-javascript-not-the-path-etc

Then we can get the exact domain with following properties of location object:

location.host = "www.stackoverflow.com"
location.protocol= "http:"

you can make the full domain with:

location.protocol + "//" + location.host

Which in this example returns http://www.stackoverflow.com

I addition of this we can get full URL and also the path with other properties of location object:

location.href= "http://www.stackoverflow.com/questions/11401897/get-the-current-domain-name-with-javascript-not-the-path-etc"    
location.pathname= "questions/11401897/get-the-current-domain-name-with-javascript-not-the-path-etc"

Answer 5

If you want the country domain name - for example to extract  .com  from  stackoverflow.com :

(ES6):

const getCountryDomainName = () => {
  let hostName = window.location.hostname;
  let lastDotIndex = hostName.lastIndexOf('.');
  let countryDomainName = hostName.substr(lastDotIndex+1, hostName.length);
  return countryDomainName;
}

(ES5):

function getCountryDomainName() {
  let hostName = window.location.hostname;
  let lastDotIndex = hostName.lastIndexOf('.');
  let countryDomainName = hostName.substr(lastDotIndex+1, hostName.length);
  return countryDomainName;
}

Then, just use the function to assign the value to a var:

const countryDomainName = getCountryDomainName();

Answer 6

How about:

window.location.hostname

The location object actually has a number of attributes referring to different parts of the URL