Difference between HTTP, HTTPS, SSL and TLS

1) HTTP : Hypertext transfer protocol 

• It is used to view webpages in the internet. 
• All information is sent in Clear text. 
• Vulnerable to hackers. 
• Cannot use this protocol to share personal information (Personal details, Bank details) 
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2) HTTPS: Secure Hypertext transfer protocol. 

• Encrypts the data that is being retrieved by HTTP. 
• Uses encryption algorithms to scramble the data that’s being transferred. 
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3) SSL : Secure Socket Layer Protocol. 

• It is a protocol that’s used to ensure security on the internet.  
• Uses public key encryption to secure data. 
• An SSL Certificate is used to authenticate the identity of a website. 
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4) TLS : Transfer Layer protocol. 

• The latest industry standard cryptographic protocol. 
• The successor to SSL. 
• Authenticate the server, client and encrypts the data.  
• There are websites which are still using HTTPS. If the there are not using SSL protocol, then google will penalize that website in their search rankings. 
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