What is a Query String?

Query strings are additions to an URL that pass on specific request parameters. For example, you can have a query string that requests a particular file version.

More About Query Strings

Query strings are easily recognizable in URLs. If a URL includes a question sign, the query string is the part of the address that comes after it.

Here’s an example:

In that case, you’re requesting a specific version of a CSS file. Versioning is a common tactic among WordPress developers to bypass caching issues.

By indicating a version using a query string, you can prevent loading outdated file versions. That can happen from your caching configuration or through a Content Delivery Network (CDN).

There are two ways to remove query strings from WordPress URLs. One method involves adding code to your website, and the other uses a plugin to remove the strings from URLs.

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