URLPattern: hostname property
Baseline 2025Newly available
Since September 2025, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
Note: This feature is available inWeb Workers.
Thehostname read-only property of theURLPattern interface is a string containing thepattern used to match the hostname part of a URL.
This is thenormalized value of the hostname pattern passed to theconstructor, aninherited value from abaseURL passed to the constructor, or the default value ("*"), which matches any hostname.
In this article
Value
A string.
Examples
>Basic usage
The following example creates aURLPattern object with*.example.org for thehostname part and logs the property.This pattern matches any hostname that is a direct subdomain ofexample.org.
js
const pattern = new URLPattern("https://*.example.org");console.log(pattern.hostname); // '*.example.org'console.log(pattern.test("https://horses.example.org")); // trueSpecifications
| Specification |
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| URL Pattern> # dom-urlpattern-hostname> |