Measure how fast your server responds. Time to First Byte (TTFB) directly affects Core Web Vitals and search ranking.
TTFB (Time to First Byte) is how long it takes from the browser sending a request until it receives the first byte of a response.
Google recommends a TTFB under 800ms for LCP eligibility. Under 200ms is excellent. Results are the best of 2 consecutive measurements.
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