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Best practices for improving site performance with Optimizely

Add preconnect and preload tags to “cdn.optimizely.com” at the top of the head for faster synchronous loading. We recommend using preconnect ...

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查詢 「Preconnect」的人也找了：

  1. Preconnect
    2.
  2. Preload JS
    3.
  4. Link prefetch
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  5. Link rel=prerender
    6.
  6. Preload font
    7.
  7. Preload image
    8.
  8. dns-prefetch
    9.