Note: Time to First Byte (TTFB) is a foundational metric for measuring connection setup time and web server responsiveness in both the lab and the field. It helps identify when a web server is too slow to respond to requests. In the case of navigation requests—that is, requests for an HTML document—it precedes every other meaningful loading performance metric.
What is TTFB?
TTFB is a metric that measures the time between the request for a resource and when the first byte of a response begins to arrive.
<https://web.dev/articles/ttfb>
What is TTFB?
TTFB is a metric that measures the time between the request for a resource and when the first byte of a response begins to arrive.
<https://web.dev/articles/ttfb>
sincerely,