Pattern #89: Consistent System Fonts
Pattern Author: Stuart Clarke-Frisby - Director of Design at Booking.com - Inspired by Booking.design
System Fonts Load Time
This pattern suggests to use a consistent modern system font instead of a mix of embedded fonts. The potential benefits of this include: greater legibility and faster load times. (Also read: Implementing system fonts on Booking.com — A lesson learned.)
For each pattern, we measure three key data points derived from related tests:
REPEATABILITY - this is a measure of how often a given pattern has generated a positive or negative effect. The higher this number, the more likely the pattern will continue to repeat.
SHALLOW MEDIAN - this is a median effect measured with low intent actions such as initiating the first step of a lengthier process
DEEP MEDIAN - this is derived from the highest intent metrics that we have for a given test such as fully completed signups or sales.