[antsar]

That would seem like a solid reason to avoid Namecheap.

Edit: Wait, do they use Cloudflare?

  $ dig namecheap.com +short
  198.54.117.250

whois:

  CIDR:           198.54.112.0/20
  NetName:        NAMEC-4
  Organization:   Namecheap, Inc. (NAMEC-4)
  Updated:        2015-11-13

https://whois.arin.net/rest/net/NET-198-54-112-0-1.html

[helb]

They don't seem to use CF's nameservers, but try the www. subdomain:

    $ kdig +short www.namecheap.com
    www.namecheap.com.cdn.cloudflare.net.
    104.16.99.56
    104.16.100.56

[qiller]

I've got Cloudflare captcha just yesterday when logging in to Namecheap