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Use head hints carefully to help the browser load important resources sooner.

The head can give resource hints such as preload, preconnect, and stylesheet links so the browser knows which files are important early.

After identity, search, sharing, and icons, performance is another head responsibility.

The browser reads the head before the visible body. That means the head is a good place to connect stylesheets and give early loading hints.

Performance hints are not magic. They should be used for resources that are truly important.

Too many hints can make performance worse because the browser has to prioritize too much at once.

<head>
  <link rel="stylesheet" href="/css/site.css">

  <link
    rel="preload"
    href="/fonts/main.woff2"
    as="font"
    type="font/woff2"
    crossorigin>

  <link
    rel="preconnect"
    href="https://fonts.example.com">
</head>

rel="stylesheet" loads the CSS needed to style the page.

rel="preload" tells the browser a resource is important and should be fetched early.

as="font" tells the browser what kind of resource is being preloaded.

crossorigin may be needed for fonts or cross-origin resources.

preconnect starts an early connection to another domain before a resource is requested.

Important resources can start loading sooner.

Styles and fonts can affect how fast the page feels ready.

The browser can make better loading decisions with useful hints.

Only preload resources that are truly critical.

<link rel="preload" href="/one.js" as="script">
<link rel="preload" href="/two.js" as="script">
<link rel="preload" href="/three.js" as="script">
<link rel="preload" href="/not-needed.jpg" as="image">

<link
  rel="preload"
  href="/fonts/main.woff2"
  as="font"
  type="font/woff2"
  crossorigin>

Ask ChatGPT: "Are these preload and preconnect hints necessary, or am I overloading the browser?" Then test performance in browser tools.

Avoid adding preload hints for everything.

Open developer tools and watch the Network panel.

Using the wrong as value.

Preloading files that are not used soon.

Forgetting crossorigin for fonts when needed.

Thinking resource hints replace good file size and clean code.

Use stylesheet links and focused resource hints to help the browser load important page files more efficiently.