A mechanism for speculative prefetching of webpages and their subresources that are on a critical path of page loading *without* executing any JavaScript or creating a complex state of the web platform. This system is not purely “no state” because HTTP cache allows to create cookies and other state related to validating cache entries. It is important to note that the “NoState Prefetch” is not an API. Server side detection: https://bugs.chromium.org/p/chromium/issues/detail?id=796855

Status in Chromium


Enabled by default (tracking bug) in:

  • Chrome for desktop release 63
  • Chrome for Android release 63
  • Chrome for iOS release 63
  • Android WebView release 63

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • No signal
  • No signal
  • No signal
  • No signals


Last updated on 2020-11-09