Respect your users’ choice for privacy — disable Google Analytics for people using Do Not Track.
Do Not Track is an HTTP header which indicates a person’s preference to opt out of tracking. Most browsers require the person to explicitly turn on this setting. You can interpret it as a clear request to avoid tracking.
It’s simple to respect your visitors’ preference for privacy. Just put any analytics tracking code inside this
This way, the analytics script won’t even be downloaded from Google’s servers. This improves your users’ privacy and slightly speeds up the page load.
Do it now!