I have taken free SSL from cloudflare. But free SSL is not working in my site. My site is https://realracing3apk.com . How can solve this problem?
Your site looks OK to me, but you still need SSL on your server for your site to be secure. Cloudflare can provide you with a free Origin Certificate, if you can install it on your server, or you can use one from another CA like Let’s Encrypt or one that your provider offers. Once you have SSL on your server, set your SSL/TLS mode at Cloudflare to Full (strict) and you should be good to go!