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What are the best practices for optimizing font loading to improve page speed?
Asked on Mar 28, 2026
Answer
Optimizing font loading is crucial for improving page speed, as it reduces the time it takes for text to appear on the screen, impacting both LCP and FID metrics. Here is a key performance concept to consider:
Example Concept: Use the "font-display" CSS property to control how fonts are loaded and displayed. By setting "font-display: swap;", you ensure that text is rendered with a fallback font immediately, and then swapped to the custom font once it is fully loaded. This minimizes text rendering delays and improves perceived performance.
Additional Comment:
- Consider preloading critical fonts using the tag to prioritize their download.
- Limit the number of font weights and styles to reduce the overall font file size.
- Use modern font formats like WOFF2 for better compression and faster loading.
- Host fonts locally to reduce dependency on third-party servers and improve reliability.
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