Flexibility to unlock entire site against one activity or you can lock each URL content. Already have a site running on CI (CodeIgniter) ? Simply plug this library and make use of it Native/Simple PHP implementation also included Separate Example for each social Network Secure URL hashing Handles not just like but unlike events too (new) Ability to set External URL – If you wish to get more likes for your Facebook page simply replace share_url with your facebook page link. Many customization possibilities Highly configurable Protected URLs – Hashing technique Ability to unlock entire site against one like, tweet or Google+