What is SPDY?

What is SPDY?

SPDY is a protocol developed by Google to increase the speed and efficiency of delivering web content. SPDY modifies parts of the HyperText Transfer Protocol (HTTP) to improve web performance.

What is SPDY and why is Google replacing it?

Update: In 2016 Google is replacing SPDY support for HTTP/2, the next evolution of HTTP that was approved by the Internet Engineering Task Force in February 2015. SPDY works alongside HTTP by modifying web traffic as it leaves the server. When a user connects to a website, an HTTP session is created to control the flow of information.

How do I disable SPDY in my browser?

Use the following instructions to disable SPDY in your respective browser. In the browser, select Tools > Internet Options > Advanced > HTTP Settings and clear the Use SPDY/3 option. In the browser, enter about:config in the address bar and press Enter. Confirm the security warning. Type network.http.spdy.enabled in the Search field.

Can I use SPDY with https?

For use within HTTPS, SPDY requires the TLS extension Next Protocol Negotiation (NPN) or Application-Layer Protocol Negotiation (ALPN) thus browser and server support depends on the HTTPS library. OpenSSL 1.0.1 or greater introduces NPN.