WhatsApp
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WhatsApp provides a to messages shared in chats that have been forwarded many times. These two arrows 
help people know when they’ve received a message that was not written by a close contact. Earlier this year, we set on how many times they can be sent at once to maintain the private nature of WhatsApp.
Today, we’re piloting a simple way to double check these messages by tapping a magnifying glass button in the chat. Providing a simple way to search messages that have been forwarded many times may help people find news results or other sources of information about content they have received.
This feature works by allowing users to upload the message via their browser without WhatsApp ever seeing the message itself.
Search the web is being rolled out starting today in Brazil, Italy, Ireland, Mexico, Spain, UK, and US for those on the latest versions of WhatsApp for Android, iOS and WhatsApp Web.