Font Preload Tester

Measure and optimize font loading performance with preload strategies.

Font Preloading Tester

Example Fonts

Google Fonts - Roboto
Popular Material Design sans-serif font
The quick brown fox jumps over the lazy dog
swap
Sans-serif
Popular
Display Font - Playfair
Elegant serif font for headings
Beautiful Typography in Action
optional
Serif
Display
CJK Font - Noto Sans SC
Chinese font with large file size
你好，世界！
swap
CJK
Large Size

Optimize Font Loading with Preloading

Analyze how preloading affects font loading times and improve web performance.

Simulate Font Loading

Test font loading times under different network conditions and preloading strategies.

Generate Preload HTML

Create optimized preload tags for faster font rendering and improved user experience.

Performance Comparison

Measure and compare font load times with and without preloading applied.

How to Use the Font Preload Tester

Step 1

Enter the font URL and specify the font family.

Step 2

Choose font weight, display options, and network speed for testing.

Step 3

Run the test to compare load times with and without preloading.

Step 4

Generate and copy the optimized preload HTML code.

Frequently Asked Questions

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