I receive too much Error 523 Origin is unreachable

I receive too much Error 523 Origin is unreachable.
When i refresh the page there is no error.
Then i click another page and get same error, then with refresh error is gone.
My host has 1 gbit quota and I use just 5-10mbit.
My ip is always same, there is no change.

May I ask what is your domain name?
Have you tried contacting your hosting account about this incident?
What does your server log files say?
Do you have DNSSEC enabled?
Do you have an SSL certificate, if so, what SSL options have you got selected for your domain on SSL/TLS tab at Cloudflare dashboard?

May I ask have you checked the suggestions and steps from below article?:

https://support.cloudflare.com/hc/en-us/articles/115003011431#523error

Is Cloudflare allowed to connect to your origin host/server?:
https://support.cloudflare.com/hc/en-us/articles/201897700-Allowing-Cloudflare-IP-addresses

Cloudflare IP list can be found here:

https://2.elveri.com
I use vps, I manage it myself.
request doesnt arrive to my host,
dnssec is disabled
no ssl, using cloudlfare Flexible.

yep i read them, no solution from help center documents.

in the middle i see
“Istanbul Cloudflare Working”
and i checked https://www.cloudflarestatus.com/
“Istanbul, Turkey - (IST) Re-routed”
is it about that?

Since you currently have 2 ip addresses configured in your A record, your site is likely being “round robin load balanced” between each of:

2.elveri.com.           300     IN      A       104.xxx.xxx.xxx
2.elveri.com.           300     IN      A       172.xxx.xxx.xxx

Maybe one of those is your previous web host. Good for the transition, but bad for long-term. Remove one perhaps?

@tom49, those are Cloudflare’s public IPs showing up because the site is proxied, they do not correspond to different origin servers or mean that there are two A records configured.

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