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② 後台搜尋「MigraMetrics: Site Speed Comparator」→ 直接安裝（推薦）
原文外掛簡介
MigraMetrics: Site Speed Comparator is an essential tool for web developers and SEO professionals migrating websites. It allows you to run bulk comparisons of Google PageSpeed Insights metrics between your old URLs and your new, redesigned URLs.
It prevents server timeouts during large migrations by securely batching requests via AJAX.
Features
Bulk Processing: Paste lists of old and new URLs to compare them side-by-side.
Sitemap Auto-Mapping: Input an old sitemap and a new sitemap; the plugin will automatically match the slugs to create a comparison queue.
Comprehensive Metrics: Retrieves overall Performance, Accessibility, Best Practices, and SEO scores directly from Google’s Lighthouse engine.
Core Web Vitals: Extracts granular metrics like Cumulative Layout Shift (CLS), Largest Contentful Paint (LCP), and First Contentful Paint (FCP) to help you gauge the “design stability” of the new site.
Mobile & Desktop: Tests both mobile and desktop strategies for every URL.
Customizable UI: Adapt the plugin’s dashboard colors and fonts to match your agency’s branding via the settings page.
Historical Reports: All tests are saved to your database so you can look back at past migration scores.
External services
This plugin securely connects to the Google PageSpeed Insights API (which is powered by Google Lighthouse) to automatically fetch real-time performance and web core vitals metrics for your specified URLs.
It sends the specific URLs that you input (the old and new URLs) to Google’s API during the testing phase. No personal data, site credentials, or WordPress user information is sent.
This service is provided by Google: Terms of Service and Privacy Policy.
