You can make your link more secure by setting a referrer. This means that only people coming from a specific website you choose will be able to access your link. If someone tries to open it from a different site, they’ll see an error.

To set this up properly:

• Make sure your website is using a rule called "referrer policy."
• If you're not sure how to do that, you can add this code to your website: <meta name="referrer" content="origin"/> This will help the referrer setting work correctly.