Hi i’m tryng to use ssl but with no sucess, my domain is a freenom and my host is 000webhost.
Hi we provide free SSL/HTTPS with only our subdomain.
See tutorial : How To Use Cloudflare For SSL
See advice from CloudFlare MVP : https://community.cloudflare.com/t/why-we-recommend-you-dont-use-flexible/63531
As @Infinity said, you can use Cloudflare for SSL on your 000webhost custom domain, however you can only use Felxible mode. This is not fully secure (please see the article linked above) for details. On a paid hosting, you should be able to install an SSL certificate (which you can also get free if you use Cloudflare) to make the connection fully secure .