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Spot issues in your copied preconnect code snippet [how to]

Why using both preconnect and dns-prefetch? The cost of resource hints. Analyzing the performance issue. preconnect work is missing in action ...

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查詢 「Preconnect」的人也找了：

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