Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The hostname property of the URLPattern interface is a string containing the pattern used to match the hostname part of a URL. This value may differ from the input to the constructor due to normalization.

Note: This feature is available in Web Workers


A string.


The below example creates a URLPattern object with *.example.org for the hostname part. This pattern matches any hostname that is a direct subdomain of example.org.

const pattern = new URLPattern('https://*.example.org');
console.log(pattern.hostname); // '*.example.org'


URLPattern API
# dom-urlpattern-hostname

Browser compatibility

BCD tables only load in the browser