Don't ever use DDoS-Protection.io since it hardly does anything but just a loading page and that it.
Even worse, they use OVH and the same doesn't have a solid protection so avoid using it.
Here is a professional video of their DStat proof:
It's nothing major and I don't think their "test vps" is hitting hard on their server so it's not much of a proof.
And again, they use OVH