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What is the work of TTFB?

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What is the work of TTFB?

(a) measures the responsiveness of web server

(b) increases the load speed of web page

(c) compresses the image

(d) remove unnecessary characters

This question was posed to me in an interview for internship.

This question is from Web Performance Optimization in division HTML Images & Web Page Files of HTML

1 Answer

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The correct option is (a) measures the responsiveness of web server

Explanation: TTFB stands for time to the first byte and measures the responsiveness of server. Its calculation is done as: process request time+ HTTP request time+ HTTP response time. This speed up the website by downloading various smaller images through sockets.

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