Sublime
An inspiration engine for ideas
people will form an initial impression of your landing page or website within 50 milliseconds.
Maura Ginty • Landing Page Optimization: The Definitive Guide to Testing and Tuning for Conversions
- An impression counts when at least 50% of your content is visible on a signed-in member's screen for at least 300 milliseconds
Google Search
will look straight over very short intervals,
Sean M. Carroll • The Biggest Ideas in the Universe: Space, Time, and Motion
0.1 seconds is the limit for feeling that the system is reacting instantaneously. 1 second is the limit for the user’s flow of thought to stay uninterrupted, even though the user will notice the delay. 10 seconds is the limit for keeping attention focused on the ongoing interaction.
Irene Pereyra • Universal Principles of UX: 100 Timeless Strategies to Create Positive Interactions between People and Technology (Rockport Universal)
E-commerce visitors tend to leave a site that takes more than 2 seconds to load.
Maura Ginty • Landing Page Optimization: The Definitive Guide to Testing and Tuning for Conversions
a conversion rate of 2–3% is typical for normal websites.
