i use cloudflare flexible mode ssl and enerything is fine but when i switch to full mode i got [525 errors] in my website when i searched in the support To avoid [525 errors], before enabling Full SSL option, configure your origin web server to allow HTTPS connections on port 443 and present either a self-signed SSL certificate, a Cloudflare Origin CA certificate, or a valid certificate purchased from a Certificate Authority.
i got the answer from (It is showing error 525 ssl handshaked failed)
but i m beginner i didnt understand how to do it can you show the exact step plz.
my hosting is infinityfree
pote 443 is working fine