SPDY 3.1 Fully Supported by KeyCDN

KeyCDN proudly supports SPDY 3.1. Our tests revealed a 60% faster content delivery. The feature can be simply enabled with a few clicks in the KeyCDN dashboard or through our API.

What is SPDY?

SPDY (pronounced SPeeDY) is a network protocol with the aim to make the web faster. SPDY is a feature that can extremely reduce page loading time. The 3 main benefits are:

  1. Allows client and server to compress request and response headers, which reduces bandwidth usage when the similar headers (e.g. X-Cache) are sent over and over again for multiple requests.
  2. Allows multiple requests over a single connection and therefore saving on round trips between client and server. Further, preventing low-priority assets from delaying higher-priority requests.
  3. Enables the server to proactively push assets to the client that it knows the client will require (e.g. CSS and images) without waiting for the client to request them.

How to configure SPDY for a CDN?

Just enable it in the dashboard and make sure you enabled SSL as well (either shared or custom):

How to check if SPDY is enabled?

The following tools will help you to verify if this feature is activated:

  1. Verify it SPDY Check
  2. Check it with your Chrome browser: chrome://net-internals/#spdy
    SPDY verification in Chrome
  3. Alternatively install the Chrome SPDY Indicator plugin
    Chrome SPDY Indicator plugin

Which web browsers support SPDY?

The feature is supported by all latest releases of Chrome, Firefox and Opera, which also including their mobile version. KeyCDN content delivery falls back to HTTP/1.1 (TLS) in case the web browser is not compatible with Google’s network protocol.

Google’s network protocol SPDY makes content delivery speedier and safer. We recommend to enable this feature for even more speed, lower latency and more security.

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SPDY 3.1 Fully Supported by KeyCDN was last modified: April 25th, 2016 by Sven Baumgartner
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