# Optimize Time to First Byte

DevFeed: [Optimize Time to First Byte](<https://devfeed.tech/articles/optimize-time-to-first-byte-4161.md>)

Original publisher: [Read original article](<https://web.dev/articles/optimize-ttfb?hl=en>)

Author: Barry Pollard X GitHub Mastodon Bluesky Homepage Jeremy Wagner GitHub LinkedIn Homepage

Published: 2025-11-28T08:00:00Z

Content type: tutorial

Language: en

Sources: [web.dev: Articles](<https://devfeed.tech/sources/web-dev-articles.md>)

Topics: [Latency](<https://devfeed.tech/topics/latency.md>), [real user monitoring](<https://devfeed.tech/topics/real-user-monitoring.md>), [Web](<https://devfeed.tech/topics/web.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [User Experience](<https://devfeed.tech/topics/user-experience.md>), [Chrome](<https://devfeed.tech/topics/chrome.md>)

Tags: [caching](<https://devfeed.tech/tags/caching.md>), [chrome](<https://devfeed.tech/tags/chrome.md>), [latency](<https://devfeed.tech/tags/latency.md>), [performance](<https://devfeed.tech/tags/performance.md>), [time](<https://devfeed.tech/tags/time.md>), [user-experience](<https://devfeed.tech/tags/user-experience.md>), [web](<https://devfeed.tech/tags/web.md>), [web-performance](<https://devfeed.tech/tags/web-performance.md>)

## AI overview

This tutorial explains how to optimize Time to First Byte (TTFB), a web performance metric that affects subsequent user experience metrics such as First Contentful Paint and Largest Contentful Paint. It covers measuring TTFB with field and lab data, understanding differences between them, and investigating redirects, server-side caching, and network conditions.

## Source excerpt

Learn how to optimize for the Time to First Byte metric.