Akamai vs Uploadcare

Being one of the worlds largest CDNs, Akamai's large scale gives it a huge point of presence (PoP) to handle volumetric attacks.

The Kona Site Defender rules are all customizable, with continuous updates from Akamai. This means you can see how they are protecting your site under the hood, and adjust them to your needs.

Through Prolexic's PLXedge, Akamai provides their customers with a total of 2.3 Tbps of dedicated DDoS absorption bandwidth.

Akamai provides tools for rate controlling traffic segments based on their request rate behavior.

If a sudden attack sucks up a lot of bandwidth, the bandwidth costs are capped.

Akamai utilizes a proprietary web application firewall in order to provide scalable protection against application layer attacks.

Uploadcare doesn't require you to define cached transformations, and handles them quickly for you so you don't have to fiddle with configurations.

Their APIs are open source on github so you can see the source and provide pull requests.

Uploadcare provides a client side widget and API, with well worded documentation that clearly explains how each part of the widget is implemented. The client side API also implements the jQuery promises interface for cleanly defining callbacks and updating with progress.

With the client side API decoupled from the upload interface, you can much more easily create customized UI's that match the look and feel of your site.