/plushcap/analysis/cloudflare/ttfb-is-not-what-it-used-to-be

Are you measuring what matters? A fresh look at Time To First Byte

What's this blog post about?

TTFB (Time To First Byte) is a metric that measures the duration between the user or client making an HTTP request and the first byte of the page being received by the client's browser. It can be influenced by server speed, network latency, and other factors. However, it does not fully represent the end-user experience. LCP (Largest Contentful Paint) is a more comprehensive metric for evaluating webpage performance. LCP measures how long it takes to load the largest image or text block visible in the browser. A lower LCP score indicates faster loading of the webpage's main content. FID (First Input Delay) is another more user-centric performance metric. It measures the time from when a user first interacts with a website (like clicking on a link, etc.) until when the website can respond back to this interaction.

Company
Cloudflare

Date published
June 20, 2023

Author(s)
Sam Marsh, Achiel van der Mandele, Shih-Chiang Chien

Word count
2226

Hacker News points
3

Language
English


By Matt Makai. 2021-2024.