Minimize time to first byte

Time to first byte is the amount of time a browser has to wait before getting its first byte of data from the server. Google recommends a TTFB of less than 200 ms.When a user visits your site, their browser sends an HTTP request to the server that hosts it. The speed is determined on the basis of three steps that take place between initial request and the first byte of data: DNS lookup, Server processing, Response.