Seo on Commentary of Takao

使用 DNS 预取和预连接加速资产加载

Wed, 15 Apr 2026 00:00:00 +0900

介绍

每个外部资源（字体、脚本、图像、API 端点）都需要网络连接。 DNS 解析、TCP 握手和 TLS 协商的开销可能会导致页面加载时间增加数百毫秒。 资源提示如 dns-prefetch 和 preconnect 让您告诉浏览器在实际需要资源之前提前执行这些步骤。

改善下次绘制 (INP) 交互的方法

Sat, 15 Mar 2025 00:00:00 +0900

介绍

在谷歌衡量网页用户体验的Core Web Vitals指标中，FID（首次输入延迟）已正式被**INP（与下一次绘制的交互）**取代。

FID 仅测量第一次用户交互的响应速度，而 INP 则评估页面访问整个生命周期中所有点击、敲击和键盘输入的响应能力。它记录交互和后续视觉更新（“下一次绘制”）之间的延迟。

Core Web Vitals核心网页指标

Mon, 15 Jan 2024 00:00:00 +0900

Core Web Vitals (CWV) are the set of user-centric performance metrics that Google uses to measure real-world experience on the web. In March 2024, Google replaced First Input Delay (FID) with Interaction to Next Paint (INP), making it critical to understand all three metrics: Largest Contentful Paint (LCP), INP, and Cumulative Layout Shift (CLS). This guide covers every aspect of optimizing your site for good CWV scores.

Understanding Core Web Vitals in 2024

The three CWV metrics measure distinct aspects of user experience. LCP tracks loading performance — how quickly the main content appears. INP measures interactivity — how responsive the page feels when users click, tap, or type. CLS quantifies visual stability — how much the layout shifts unexpectedly during load.