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Asked: 2026-05-11T00:24:47+00:00

I came across a site that demonstrated a Javascript library and it asked that

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I came across a site that demonstrated a Javascript library and it asked that you please not link to the Javascript file directly from your site. That’s a reasonable request. In fact, it wouldn’t have occurred to me to do that instead of hosting it myself but I guess will try and save on bandwidth any way they can.

This got me thinking: does Apache (in a shared hosting environment) come with any simple means of either preventing this or at least making it a little more difficult by looking at the HTTP_REFERRER or the likes? Or perhaps even just ensuring you have a PHP session?

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  1. Using an htaccess file you can do this.

    Simply create a .htaccess file in the directory of the files you wish to protect with the following inside it:

    RewriteEngine on RewriteCond %{HTTP_REFERER} !^$ RewriteCond %{HTTP_REFERER} !^http://(www\.)?yourdomain.com(/)?.*$ [NC]

    For more information and some other things you can do to prevent hot linking at the web server level see Dev Papers article on Preventing Hotlinking

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