As a webmaster, when linking to a websites you risk of revealing the source you are linking due to referrer check. And if for any reason you do not want to reveal the sensitive webpage like a website not intended for public use.
There are some nice free services available online which can prevent your site from appearing in the server logs of the referred pages as referrers when you place the link on your website.
I am listing down here most popular service which create anonymous links instantly for you, which you can place on your webpage.
1. link anonymiz – Browse to the site and enter the URL for which you want to place a link and click on Anonymise! The service does not require any registration to generate the anonymous link.