Type
New feature
Description
When clients connect to a service that is protected by cloudflare their first request is usually a dynamic resource that cf can not cache and it leads to extended wait time until the resource is fetched from origin server. during this time cloudflare can send a http 103 early hint response so while waiting for origin server’s response other assets are preloaded or at least preconnected.
Benefit
This approach can improve overall speed of websites visited by clients by letting them do steps like DNS lookup, TLS handshake and even fetching of resources that will be needed after origin has responded.