Performance

We think the mtr tool offers a great way to test network speed, evaluate performance, and perform connection diagnostics. The mtr tool…

Compression can help you reduce the size of your assets so traffic can flow faster. You can use Fastly to compress data automatically on our…

This guide describes how to enable HTTP/3 for your Fastly services. About HTTP/3 HTTP/3 uses a web transport protocol standard called QUIC…

If you haven't enabled Segmented Caching , you may encounter the following failure modes when working with large objects. If you created…

Fastly continuously monitors the performance and status of our global network . We constantly monitor the health of all its related…

HTTP/2 server push allows you to set up rules that enable Fastly to pre-emptively load and then send responses to an HTTP/2-compliant client…

Under normal circumstances, Fastly would consider these URLs different objects that are cached separately: http://example.com http://example…

Fastly can automatically detect and, in real time, route around transient connection problems that occur when fetching content from your…

Fastly can optionally serve stale content when there is a problem with your origin server or if new content is taking a long time to fetch…

When fetching an object from the origin, the Streaming Miss feature ensures the response is streamed back to the client immediately and is…