How to use Google Fonts (the right way)

Using Google Fonts effectively can significantly enhance your website's typography without compromising performance. By focusing on subsetting, preconnecti

How do I choose the right Google Fonts for my website?

Selecting the right fonts is key for both aesthetics and performance. Consider the following factors when choosing fonts from the Google Fonts library:

Readability: Fonts with a high x-height, such as Inter and Source Sans 3, are generally more readable on screens.
Contrast: Fonts like Fraunces and Merriweather offer high contrast, making them suitable for headlines and titles.
Versatility: IBM Plex Sans and Libre Franklin are versatile sans-serif fonts that work well in various contexts.
Style: Choose fonts that align with your brand’s personality. For example, Playfair Display is elegant and sophisticated, while Inter is modern and clean.

What is subsetting, and how do I use it?

Subsetting involves including only the necessary characters and styles in your font files, which reduces their size and improves load times. Here’s how to implement subsetting:

Character sets: Include only the characters you need. For example, if your website is in English, you can exclude Cyrillic or Greek characters.
Styles: Limit the number of styles (e.g., regular, bold, italic) to those you will actually use. For instance, if you only need regular and bold, exclude the italic styles.
Tools: Use tools like Google Web Fonts Helper to generate subsetted font files.
Example fonts: Fonts like Inter and Source Sans 3 are excellent choices for subsetting due to their comprehensive character sets and multiple styles.

How can I optimize font loading with preconnect?

Preconnecting to the Google Fonts server can significantly speed up the loading of your fonts by establishing a connection to the server before the browser requests the fonts. Here’s how to implement preconnect:

Add the preconnect link: Include the following line in the <head> section of your HTML:
<link rel="preconnect" href="https://fonts.googleapis.com">
Include the font stylesheet: After preconnecting, link to the Google Fonts stylesheet as usual:
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap" rel="stylesheet">
Benefits: Preconnecting reduces the time it takes for the browser to start downloading the fonts, resulting in faster rendering.

What display strategies should I use for Google Fonts?

Choosing the right display strategy can enhance the user experience by controlling how and when fonts are rendered. Here are some common strategies:

Swap: The browser displays the fallback font immediately and swaps to the Google Font once it has loaded. This is useful for improving perceived performance.
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap" rel="stylesheet">
Block: The browser waits until the Google Font is loaded before displaying text. This can cause a delay but ensures the correct font is used.
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=block" rel="stylesheet">
Optional: The browser will use the Google Font if it loads quickly but will fall back to the system font if it doesn’t. This is a good balance between performance and aesthetics.
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=optional" rel="stylesheet">
Font-display: This CSS property allows you to specify how fonts are rendered before they are loaded. For example, font-display: swap; can be used to implement the swap strategy.

How can I minimize the number of HTTP requests?

Reducing the number of HTTP requests is key for improving website performance. Here are some strategies to minimize requests when using Google Fonts:

Combine font requests: Combine multiple font requests into a single request by listing all the fonts and their styles in one URL. For example:
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;700&family=Source+Sans+3:wght@400;700&display=swap" rel="stylesheet">
Use preload: Use the preload link to load critical fonts early. This can be combined with preconnect for even better performance.
<link rel="preload" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap" as="style" onload="this.rel='stylesheet'">
Limit font families and weights: Only include the font families and weights that are absolutely necessary. For example, if you only need regular and bold weights, exclude the italic styles.

Frequently asked questions

What are the best Google Fonts for body text?

For body text, it’s important to choose fonts that are highly readable and have a good x-height. Some of the best options include:

Inter
Source Sans 3
Libre Franklin
IBM Plex Sans

How do I ensure my fonts load quickly?

To ensure your fonts load quickly, follow these steps:

Use subsetting to include only the necessary characters and styles.
Preconnect to the Google Fonts server.
Use the swap or optional display strategy.
Limit the number of font families and weights.

Can I use Google Fonts for commercial projects?

Yes, Google Fonts are open-source and can be used for commercial projects. However, it’s always a good idea to check the specific license for each font to ensure compliance.

What is the difference between `swap` and `block` display strategies?

The swap strategy displays the fallback font immediately and swaps to the Google Font once it has loaded, improving perceived performance. The block strategy waits until the Google Font is loaded before displaying text, which can cause a delay but ensures the correct font is used.