We share information with 3rd parties where required to identify or track abuse or prevent future abuse (e.g. we may check submitted URLs against 3rd party blacklists and may share information on malicious URLs or abusive users with 3rd parties). When you create a QR code, we pass the relevant shortened URL to Google, since we use their Charts API to generate these.</p> <p>We use Google Analytics (see https://www.google.com/analytics/) to collect and analyse site statistics.