TTFB first byte time : Why it is important and how to reduce it?
TTFB aka first-byte time is nothing but the time taken by the first byte to reach the client machine when the client seeks a response from the server after the browser running on it makes an HTTP GET request. A small TTFB value indicates that your web server is fast. A high TTFB value denotes that your site is slow in responding to the browser’s HTTP GET request. To fix the problem, you’ll have to work on the code or check web server and DB configuration. ...