Using Cloudflare as CDN for debian.org website

Dear debian.org webmasters,

CDN (Content Delivery Network) is a service that distribute website's 
content into different servers across the world. This way, when a 
visitor in Singapore (for example) visit a website which hosted in 
Europe, the website assets will be served from CDN server in Singapore 
or nearby instead.

The benefits of using CDN are (quoting from wpbeginner.com):

  * speed
  * crash resistence
  * UX (user experience) and SEO improvements

Cloudflare is one of leading CDN provider in the world. Beside providing 
CDN service, it have DDOS protection which can be handy regarding security.

Is debian.org website currently use CDN? Either answer, is Cloudflare 
CDN suitable for debian.org website?

One of interesting feature of Cloudflare is reCAPTCHA challenge every 
time visitor access website which have this feature enabled. Before a 
visitor can reach website, there will be reCAPTCHA challenge which 
visitor must answer in order to get access to website's web property. 
Usually, visitor must click "I'm not a robot" checkbox and must select 
squares which contain a particular object (in most cases related to road 
infrastructure in USA). In order prevent the challenge, Cloudflare says 
in the challenge page:

> If you are on a personal connection, like at home, you can run an 
> anti-virus scan on your device to make sure it is not infected with 
> malware.
>
> If you are at an office or shared network, you can ask the network 
> administrator to run a scan across the network looking for 
> misconfigured or infected devices.
>
> Another way to prevent getting this page in the future is to use 
> Privacy Pass browser extension 
> <https://addons.mozilla.org/en-US/firefox/addon/privacy-pass/>

However, in the challenge page the visitor's IP address is also 
displayed. Is it OK for debian.org website to use reCAPTCHA challenge 
feature (which is available in Pro plan and higher) when using 
Cloudflare as CDN?

Regards, Bagas