FasterWeb uses just-in-time preloading; it preloads a page right before you click on it.
FasterWeb works best on pages that are on the same sites. Pages to external sites are still faster but generally not enough to be noticeable.
How it works: Before you click on a link, you hover your mouse over it. When you have hovered for 65 milliseconds there is one chance out of two that you will click, so FasterWeb starts preloading at this moment, leaving on average over 300 ms for the page to preload.
Pages that trigger an action (such as logging out or deleting something) are excluded. (FasterWeb won’t preload pages with a “?” in their URL.)
FasterWeb — previously called FasterChrome — is based on instant.page, a library that you can add to your site in just one minute to give it the same speed boost.