Which combination of practices is recommended to optimize font loading performance?

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Multiple Choice

Which combination of practices is recommended to optimize font loading performance?

The main idea here is loading fonts in a way that doesn’t block rendering and keeps the visible text fast. The strongest approach combines several targeted practices that reduce how much font data the browser has to fetch and parse, while ensuring text remains legible as soon as possible. Using font-display: swap ensures that text is shown immediately with a fallback font while the custom font is still loading, preventing invisible text and layout shifts. Preloading font files starts the fetch earlier so the font is ready when the browser needs it, which cuts wait time for the actual font. Limiting the number of font families and weights you load reduces the total data the browser must download and parse, speeding up the initial render. WOFF2 is a modern, highly compressed font format, so it delivers more content with less data. Subsetting fonts to include only the glyphs you actually use further trims the font size, especially for languages or icon sets with many unused glyphs. Together, these practices minimize render-blocking resources, improve cacheability, and lower bandwidth usage, delivering faster and more stable perceived performance. Embedding fonts as data URLs tends to bloat the CSS or HTML and reduces caching efficiency across pages, making it harder for the browser to reuse downloaded fonts. It’s generally not the best choice for font loading performance.

The main idea here is loading fonts in a way that doesn’t block rendering and keeps the visible text fast. The strongest approach combines several targeted practices that reduce how much font data the browser has to fetch and parse, while ensuring text remains legible as soon as possible.

Using font-display: swap ensures that text is shown immediately with a fallback font while the custom font is still loading, preventing invisible text and layout shifts. Preloading font files starts the fetch earlier so the font is ready when the browser needs it, which cuts wait time for the actual font. Limiting the number of font families and weights you load reduces the total data the browser must download and parse, speeding up the initial render. WOFF2 is a modern, highly compressed font format, so it delivers more content with less data. Subsetting fonts to include only the glyphs you actually use further trims the font size, especially for languages or icon sets with many unused glyphs.

Together, these practices minimize render-blocking resources, improve cacheability, and lower bandwidth usage, delivering faster and more stable perceived performance.

Embedding fonts as data URLs tends to bloat the CSS or HTML and reduces caching efficiency across pages, making it harder for the browser to reuse downloaded fonts. It’s generally not the best choice for font loading performance.

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