What’s the Difference Between localhost and 127.0.0.1?

 localhost is a domain name, fundamentally no different from the domain names used for internet access, except for its ease of remembrance. 

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The scope of localhost is limited to the local machine — its name makes it clear: “local” refers to something within the locality.

Both John Smith and Jane Doe can use localhost on their respective machines without interfering with each other, accessing their individual page content.

From Domain Name to Program

To truly understand localhost, we need to discuss how users access programs via domain names,


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