[tor-talk] CloudFlare blog post

[Mirimir]

On 03/30/2016 07:21 AM, Martijn Grooten wrote:
> CloudFlare CEO Matthew Prince just posted this blog post
> 
>   https://blog.cloudflare.com/the-trouble-with-tor/  
> 
> which I think is worth a read for people on this list.

<SNIP>

In discussion on Hacker News about why CAPTCHAs are so slow using Tor, I
said that multiple requests were the problem. But pfg said:[0]

| AFAIK TBB doesn't create per-domain circuits for every subresource
| on a site (that would kill performance on many sites with 10s of
| third-party trackers, CDN hosts, etc.), but rather one circuit per
| "URL-bar domain". That domain doesn't change when a CloudFlare site
| renders reCAPTCHA.

Is that correct? And if so, why are CAPTCHAs so slow?

[0] https://news.ycombinator.com/item?id=11388560