I’ve developed this plugin to easily add href.li functionality to your WordPress site.
You can use this plugin to prevent your site from appearing in the server logs of referred pages as a referrer. The operators of the referred pages cannot see where their visitors come from any more.
Wikipedia on referrer hiding:
Most web servers maintain logs of all traffic, and record the HTTP referrer sent by the web browser for each request. This raises a number of privacy concerns, and as a result, a number of systems to prevent web servers being sent the real referring URL have been developed
For example, this plugin will automatically convert external links to this format https://href.li/?http://example.com.
This is an anonymous link to example.com which prevents the original site from appearing as a referrer in the log files of the referred page.
You can also choose to exclude keywords & domains in the settings of the plugin.