![\"\u5c01\u9762\u4fe1\u606f\u56fe\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/10\/20261021200845-6ad91bcd01326.webp\")
<\/p>\n \/* MD \/ \u5bcc\u6587\u672c\u4e2d\u7684 .toc\uff08\u542b\u535a\u5ba2\u56ed\u642c\u5bb6\u7b49\u5d4c\u5957\u7ed3\u6784\uff09\uff1b.toc-box \u5728\u4fa7\u680f\uff0c\u4e0d\u53d7\u5f71\u54cd *\/
\n #content_views .toc,
\n \/* \u7f16\u8f91\u5668\u5e38\u5728\u76ee\u5f55\u524d\u540e\u63d2\u5165\u7a7a p\uff08:empty \u4ecd\u5360 20px\uff09\uff0c\u4e00\u5e76\u53bb\u6389\u907f\u514d\u9876\u7a7a\u9699 *\/
\n #content_views.markdown_views > p:empty:has(+ .toc),
\n #content_views.markdown_views > .toc + p:empty,
\n \/* \u5bcc\u6587\u672c\u65e7\u7248\u76ee\u5f55\u6807\u8bb0 *\/
\n #content_views.htmledit_views #main-toc,
\n #content_views.htmledit_views #hr-toc,
\n #content_views.htmledit_views p[id*=\\”-toc\\”] {
\n display: none !important;
\n }
\n \/* \u76ee\u5f55\u53bb\u6389\u540e\uff0c\u7d27\u8ddf\u7684\u9996\u4e2a\u6807\u9898\u4e0d\u518d\u591a\u51fa\u4e00\u5757\u4e0a\u8fb9\u8ddd *\/
\n #content_views.markdown_views > .toc + h1,
\n #content_views.markdown_views > .toc + h2,
\n #content_views.markdown_views > .toc + h3,
\n #content_views.markdown_views > .toc + h4,
\n #content_views.markdown_views > .toc + p:empty + h1,
\n #content_views.markdown_views > .toc + p:empty + h2,
\n #content_views.markdown_views > .toc + p:empty + h3,
\n #content_views.markdown_views > .toc + p:empty + h4 {
\n margin-top: 0 !important;
\n }<\/p>\n
<\/p>\n
\u5728\u5f88\u591a\u524d\u7aef\u56e2\u961f\u4e2d，\u201c\u6027\u80fd\u4f18\u5316\u201d\u5f80\u5f80\u6ca6\u4e3a\u4e00\u79cd\u8fd0\u52a8\u5f0f\u7684\u4e34\u65f6\u6551\u706b：\u4e1a\u52a1\u53cd\u9988\u9875\u9762\u5361\u4e86，\u5de5\u7a0b\u5e08\u6293\u8033\u6320\u816e\u6539\u4e24\u5929\u4ee3\u7801，\u968f\u540e\u53c8\u9677\u5165\u6f2b\u957f\u7684\u4e0d\u786e\u5b9a\u72b6\u6001\u2014\u2014\u5230\u5e95\u4f18\u5316\u4e86\u591a\u5c11？\u54ea\u4e9b\u7528\u6237\u53d8\u5feb\u4e86？\u65b0\u529f\u80fd\u4e0a\u7ebf\u540e\u6709\u6ca1\u6709\u5f15\u8d77\u6027\u80fd\u56de\u9000？<\/p>\n
\u6ca1\u6709\u91cf\u5316，\u5c31\u6ca1\u6709\u6539\u8fdb\u3002<\/p>\n
Google \u63d0\u51fa\u7684 Core Web Vitals（\u6838\u5fc3\u7f51\u9875\u6307\u6807，\u7b80\u79f0 CWV） \u4e3a\u5168\u7403 Web \u6027\u80fd\u5efa\u7acb\u4e86\u7edf\u4e00\u7684\u6807\u51c6\u5ea6\u91cf\u8861：<\/p>\n
\u4ece 0 \u5230 1 \u642d\u5efa\u4e00\u5957\u5de5\u4e1a\u7ea7\u7684\u524d\u7aef CWV \u771f\u5b9e\u7528\u6237\u6027\u80fd\u76d1\u63a7（RUM, Real User Monitoring）\u6307\u6807\u5e93\u4e0e\u4e0a\u62a5\u7ba1\u9053，\u662f\u524d\u7aef\u56e2\u961f\u8d70\u5411\u5de5\u7a0b\u5316\u6210\u719f\u7684\u5173\u952e\u91cc\u7a0b\u7891\u3002<\/p>\n
flowchart LR
\n subgraph CWV [Core Web Vitals \u9ec4\u91d1\u4e09\u89d2]
\n LCP["LCP (\u52a0\u8f7d\u4f53\u9a8c): \u4f18\u79c0 < 2.5s | \u5dee > 4.0s"]
\n INP["INP (\u4ea4\u4e92\u54cd\u5e94): \u4f18\u79c0 < 200ms | \u5dee > 500ms"]
\n CLS["CLS (\u89c6\u89c9\u7a33\u5b9a): \u4f18\u79c0 < 0.1 | \u5dee > 0.25"]
\n end
\n LCP –> Analytics[RUM \u805a\u5408\u5206\u6790\u4e2d\u5fc3]
\n INP –> Analytics
\n CLS –> Analytics
\n Analytics –> Dashboard[Grafana \/ Datadog \u6027\u80fd\u5927\u76d8]<\/p>\n
\u501f\u52a9\u5b98\u65b9\u6807\u51c6\u5e93 web-vitals，\u5e76\u7ed3\u5408\u7f51\u7edc\u72b6\u6001（Network Information API）\u3001\u8bbe\u5907\u5185\u5b58（Device Memory）\u4e0e\u9875\u9762\u751f\u547d\u5468\u671f（Page Lifecycle）\u8fdb\u884c\u9ad8\u7ef4\u5ea6\u5168\u91cf\u91c7\u6837：<\/p>\n
import { onLCP, onINP, onCLS, onFCP, onTTFB, Metric } from 'web-vitals';<\/p>\n
export interface PerformancePayload {
\n metricName: string;
\n value: number;
\n rating: 'good' | 'needs-improvement' | 'poor';
\n delta: number;
\n id: string;
\n navigationType: string;
\n context: {
\n url: string;
\n userAgent: string;
\n effectiveType?: string; \/\/ 4g, 3g, 2g
\n downlink?: number; \/\/ Mbps
\n rtt?: number; \/\/ \u5f80\u8fd4\u65f6\u5ef6 ms
\n deviceMemory?: number; \/\/ GB
\n hardwareConcurrency?: number; \/\/ CPU \u6838\u5fc3\u6570
\n timestamp: number;
\n };
\n}<\/p>\n
export class WebVitalsReporter {
\n private endpoint: string;
\n private queue: PerformancePayload[] = [];
\n private flushTimer: any = null;<\/p>\n
constructor(endpoint = '\/api\/telemetry\/web-vitals') {
\n this.endpoint = endpoint;
\n this.initMetricsCollection();
\n this.setupLifecycleFlush();
\n }<\/p>\n
private initMetricsCollection() {
\n const handleMetric = (metric: Metric) => {
\n const payload: PerformancePayload = {
\n metricName: metric.name,
\n value: Math.round(metric.name === 'CLS' ? metric.value * 1000 : metric.value),
\n rating: metric.rating,
\n delta: Math.round(metric.delta),
\n id: metric.id,
\n navigationType: metric.navigationType || 'navigate',
\n context: this.collectSystemContext(),
\n };<\/p>\n
this.queue.push(payload);
\n this.scheduleFlush();
\n };<\/p>\n
\/\/ \u76d1\u542c\u5168\u91cf\u6838\u5fc3\u4e0e\u8f85\u52a9\u6307\u6807
\n onLCP(handleMetric);
\n onINP(handleMetric);
\n onCLS(handleMetric);
\n onFCP(handleMetric);
\n onTTFB(handleMetric);
\n }<\/p>\n
private collectSystemContext() {
\n const nav = navigator as any;
\n const conn = nav.connection || nav.mozConnection || nav.webkitConnection;<\/p>\n
return {
\n url: window.location.href,
\n userAgent: navigator.userAgent,
\n effectiveType: conn?.effectiveType,
\n downlink: conn?.downlink,
\n rtt: conn?.rtt,
\n deviceMemory: nav.deviceMemory,
\n hardwareConcurrency: navigator.hardwareConcurrency,
\n timestamp: Date.now(),
\n };
\n }<\/p>\n
\/\/ \u6279\u91cf\u5408\u5e76\u4e0a\u62a5\u9632\u6296
\n private scheduleFlush() {
\n if (this.flushTimer) return;
\n this.flushTimer = setTimeout(() => {
\n this.flush();
\n }, 3000);
\n }<\/p>\n
private flush() {
\n if (this.queue.length === 0) return;
\n const dataToSend = this.queue.splice(0);<\/p>\n
\/\/ \u4f18\u5148\u4f7f\u7528 sendBeacon \u4fdd\u8bc1\u5728\u9875\u9762\u5378\u8f7d\/\u540e\u53f0\u5207\u8d70\u65f6 100% \u53ef\u9760\u9001\u8fbe
\n const blob = new Blob([JSON.stringify(dataToSend)], { type: 'application\/json' });
\n if (navigator.sendBeacon) {
\n navigator.sendBeacon(this.endpoint, blob);
\n } else {
\n fetch(this.endpoint, {
\n method: 'POST',
\n body: blob,
\n keepalive: true,
\n }).catch(() => {});
\n }<\/p>\n
this.flushTimer = null;
\n }<\/p>\n
\/\/ \u9875\u9762\u8fdb\u5165\u540e\u53f0\u6216\u9500\u6bc1\u65f6\u7acb\u5373\u6e05\u7a7a\u961f\u5217
\n private setupLifecycleFlush() {
\n document.addEventListener('visibilitychange', () => {
\n if (document.visibilityState === 'hidden') {
\n this.flush();
\n }
\n });
\n window.addEventListener('pagehide', () => this.flush());
\n }
\n}<\/p>\n
\u6536\u96c6\u5230\u65e5\u5fd7\u540e，\u5728\u540e\u7aef\u5206\u6790\u65f6\u5fc5\u987b\u9075\u5faa\u884c\u4e1a\u9ec4\u91d1\u6807\u51c6：<\/p>\n
\u5efa\u7acb\u4ece\u91c7\u96c6\u3001\u4e0a\u62a5\u3001\u805a\u5408\u5230\u544a\u8b66\u7684\u6027\u80fd\u6307\u6807\u5168\u94fe\u8def，\u8ba9\u524d\u7aef\u4f53\u9a8c\u7684\u6bcf\u4e00\u6b21\u5fae\u5c0f\u8dc3\u5347\u90fd\u6709\u636e\u53ef\u4f9d\u3001\u6e05\u6670\u53ef\u89c1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\/* MD \/ \u5bcc\u6587\u672c\u4e2d\u7684 .toc\uff08\u542b\u535a\u5ba2\u56ed\u642c\u5bb6\u7b49\u5d4c\u5957\u7ed3\u6784\uff09\uff1b.toc-box \u5728\u4fa7\u680f\uff0c\u4e0d\u53d7\u5f71\u54cd *\/#content_views .toc,\/* \u7f16\u8f91\u5668\u5e38\u5728\u76ee\u5f55\u524d\u540e\u63d2\u5165\u7a7a p\uff08:empty \u4ecd\u5360 20px\uff09\uff0c\u4e00\u5e76\u53bb\u6389\u907f\u514d\u9876\u7a7a\u9699 *\/#content_views.markdown_views > p:empty:has(+ .toc),#content_views.markdown_views > .toc + p:empty,\/* \u5bcc\u6587\u672c\u65e7\u7248\u76ee\u5f55\u6807\u8bb0 *\/#content<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[9627,66,50,87,51],"topic":[],"class_list":["post-116786","post","type-post","status-publish","format-standard","hentry","category-server","tag-webgl","tag-ai","tag-50","tag-87","tag-51"],"yoast_head":"\n