How to Fix Ensure text remains visible during webfont load ?

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Ensure text remains visible during webfont load fix


Ensuring that text remains visible during web font load is essential for maintaining a good user experience, especially when using custom fonts on your website. Here are some techniques to achieve this:

Use system fonts or fallback fonts: Instead of relying on web fonts, consider using system fonts or fallback fonts as your primary font stack. System fonts are pre-installed on users' devices and load instantly, providing a better initial reading experience. Fallback fonts can be specified in the CSS font stack and will be displayed while the web font is still loading.

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
}


Implement the font-display property: The font-display property allows you to control how the browser handles the rendering of web fonts. By specifying font-display: swap;, the browser will use a fallback font until the web font is loaded, at which point it will switch to the web font. This ensures that text remains visible during the font loading process.


@font-face {
  font-family: 'YourWebFont';
  src: url('your-webfont.woff2') format('woff2'),
       url('your-webfont.woff') format('woff');
  font-display: swap;
}

Preload web fonts: Use the <link> element with the preload attribute to inform the browser to fetch the web font as early as possible. This helps minimize the delay in font loading.

<link as='font' crossorigin='anonymous' href='your-webfont.woff2' rel='preload' type='font/woff2'>
or,
<link as='font' crossorigin='anonymous' href='your-webfont.woff2' integrity='your-integrity-value' rel='preload'>

Optimize web font files: Ensure that your web font files are properly optimized to minimize their file size. Tools like Font Squirrel's Webfont Generator or Google Fonts can generate optimized font files for web usage.

Set appropriate font-size and line-height: Specify a fallback font size and line-height that closely matches the dimensions of your web font. This ensures that the text layout remains consistent even during the font loading process.

body {
  font-size: 16px;
  line-height: 1.5;
}

Test and monitor: Use tools like Lighthouse or web performance monitoring tools to evaluate the impact of web fonts on your page load and ensure that text remains visible during the font loading process.
By implementing these techniques, you can enhance the user experience by minimizing the flash of unstyled text (FOUT) and providing readable content to your users, even while web fonts are being loaded.

Preload web fonts Use to fetch your font files earlier.:
<link rel="preload" as="font"/>
<link href="https://fonts.googleapis.com/css?family=Roboto:400,700&display=swap" rel="stylesheet"/>

CSS:

@font-face {
  font-family: 'Pacifico';
  font-style: normal;
  font-weight: 400;
  src: local('Pacifico Regular'), local('Pacifico-Regular'),
    url(https://fonts.gstatic.com/s/pacifico/v12/FwZY7-Qmy14u9lezJ-6H6MmBp0u-.woff2)
      format('woff2');
  font-display: swap;
}

Change CSS:
Use font-display #
Before
@font-face { font-family: Helvetica; }

After
@font-face { font-family: Helvetica; font-display: swap; }

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