On my iPhone 5, why every time i search?

Online it says:
Juniper Web Filtering has been set to block this site.

What does that mean and how can I get rid of it

According to the law of your place maybe this site is restricted! Also a malware called bad news is attacking some cellphone os that you may check that too! Though iphone5 as a top advanced smartphone in the world has the preventive and warning measures, if you read its manual well! Top phone!