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What happens when you type an URL in the browser and press enter?

阿新 • • 發佈：2018-03-12
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What happens when you type an URL in the browser and press enter?

1. You type maps.google.com into the address bar of your browser.

2. The browser checks the cache for a DNS record to find the corresponding IP address of maps.google.com.

3. If the requested URL is not in the cache, ISP’s DNS server initiates a DNS query to find the IP address of the server that hosts maps.google.com.

4. Browser initiates a TCP connection with the server.

5. The browser sends an HTTP request to the web server.

6. The server handles the request and sends back a response.

7. The server sends out an HTTP response.

8. The browser displays the HTML content (for HTML responses which is the most common).

What happens when you type an URL in the browser and press enter?

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